Natd survives DHCP?
One of our servers had the DHCP service removed a while ago. However the system log keeps reporting "natd[199]: failed to write packet back (No route to host)", I'd assume because DHCP isn't there anymore. Trying to kill natd took the server offline completely.
Does anybody know why natd is still running and whether it needs to? What is the best way to remove/disable it?
Thanks.
I'd like to continue this thread....
I have a 10.5.8 Server that has the NAT/DHCP/Firewall hiccup-misconfiguration of the nature....
Here's the log
4/27/10 7:50:28 AM natd[317] failed to write packet back (No route to host)
4/27/10 7:50:28 AM natd[317] failed to write packet back (No route to host)
4/27/10 7:50:30 AM natd[317] failed to write packet back (Host is down)
4/27/10 7:50:30 AM natd[317] failed to write packet back (Host is down)
4/27/10 7:50:34 AM natd[317] failed to write packet back (Host is down)
4/27/10 7:50:34 AM natd[317] failed to write packet back (Host is down)
4/27/10 7:50:42 AM natd[317] failed to write packet back (Host is down)
4/27/10 7:50:42 AM natd[317] failed to write packet back (Host is down)
4/27/10 8:01:22 AM bootpd[4841] can't open /etc/bootptab
4/27/10 8:01:22 AM bootpd[4841] server name myLeopardServer.myDomain.com
4/27/10 8:01:22 AM bootpd[4841] interface en0: ip 10.0.3.100 mask 255.255.255.0
4/27/10 8:01:22 AM bootpd[4841] interface en1: ip 10.0.4.1 mask 255.255.255.0
4/27/10 8:01:22 AM bootpd[4841] DHCP REQUEST [en0]: 1,0:1e:c2:d1:e2:c8
4/27/10 8:01:22 AM bootpd[4841] ACK sent Anybody's iPhone 10.0.3.40 pktsize 318
4/27/10 8:01:22 AM bootpd[4841] ACK sent Anybody's iPhone 10.0.3.40 pktsize 318
4/27/10 8:11:54 AM bootpd[4873] can't open /etc/bootptab
4/27/10 8:11:54 AM bootpd[4873] server name myLeopardServer.myDomain.com
4/27/10 8:11:54 AM bootpd[4873] interface en0: ip 10.0.3.100 mask 255.255.255.0
4/27/10 8:11:54 AM bootpd[4873] interface en1: ip 10.0.4.1 mask 255.255.255.0
4/27/10 8:11:54 AM bootpd[4873] DHCP REQUEST [en0]: 1,0:22:41:75:6a:69 <iPod-touch>
4/27/10 8:11:54 AM bootpd[4873] ACK sent MyCompany's iPod Touch 10.0.3.4 pktsize 318
4/27/10 8:11:54 AM bootpd[4873] DHCP DISCOVER [en0]: 1,0:22:41:75:6a:69 <iPod-touch>
4/27/10 8:11:54 AM bootpd[4873] OFFER sent MyCompany's iPod Touch 10.0.3.4 pktsize 318
4/27/10 8:11:55 AM bootpd[4873] DHCP REQUEST [en0]: 1,0:22:41:75:6a:69 <iPod-touch>
4/27/10 8:11:55 AM bootpd[4873] ACK sent MyCompany's iPod Touch 10.0.3.4 pktsize 318
4/27/10 8:11:55 AM bootpd[4873] ACK sent MyCompany's iPod Touch 10.0.3.4 pktsize 318
4/27/10 8:11:55 AM bootpd[4873] ACK sent MyCompany's iPod Touch 10.0.3.4 pktsize 318
4/27/10 8:13:55 AM mDNSResponder[32] DNS Message too short
4/27/10 8:13:55 AM mDNSResponder[32] DNS Message too short
4/27/10 8:14:23 AM bootpd[4873] DHCP REQUEST [en0]: 1,0:1e:c2:d1:e2:c8
4/27/10 8:14:23 AM bootpd[4873] ACK sent Anybody's iPhone 10.0.3.40 pktsize 318
4/27/10 8:14:23 AM bootpd[4873] ACK sent Anybody's iPhone 10.0.3.40 pktsize 318
4/27/10 8:20:49 AM natd[317] failed to write packet back (No route to host)
4/27/10 8:20:49 AM natd[317] failed to write packet back (No route to host)
4/27/10 8:20:51 AM natd[317] failed to write packet back (Host is down)
4/27/10 8:20:51 AM natd[317] failed to write packet back (Host is down)
This pattern repeats and repeats on a newly rebuild 10.5.8 Server. Could this be caused by a Airport Base Station Gateway/DHCP and Leopard Server DHCP fighting on the same subnet? I know this is a silly question but I've had my AirportBaseStation doing port forwarding and serving as the gateway router with a LeopardServer as the target for most of the forwarded traffic.... This server has two interfaces serving as another NAT Gateway for my private IP space on a different subnet.
Can anyone tell me it that could cause this problem and if so, how can I prove to myself this is the issue? I'd like "proof" because this has been my general setup for this double NATed network for a few years and I think it works.... It has worked pretty well if not perfectly.... I have a fair but not absolute confidence that this works but I can't say that the log entries are not because of DHCP fighting....
I believe there is a problem but the configuration of something.....
Similar Messages
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Hello,
We are running 2008 R2 domain with one physical DC and other running in VM on Hyper-V host (2008 R2 Standard). The host has 4 NICs and is configured to use one physical NIC for itself (management) and the hyper-v guest is configured to use another dedicated/physical
NIC (through microsoft virtual switch) just for itself.
I noticed that after setting the hyper-v guest with a static IP address all works fine only until guest restart. When the guest boots up the IP address is still configured correctly in IPv4 properties, but there is no network connectivity at all and in fact
the guest shows running APIPA config in ipconfig /all output. That situation continues until I remove the virtual NIC from hyper-v guest, remove the virtual switch from dedicated NIC on host and then reconfigure it (using same settings as they were). very
annoying.
For time being I switched the virtual DC (problematic hyper-v guest) to a DHCP IP and configured DHCP server (running on physical DC machine, not on hyper-v host) to store a reservation for the hyper-v guest so it always gets the same "static"
IP configuration.
Is there some kind of a problem/bug with using static IP on (2008 R2) hyper-v guests? is there a hotfix for static IP config in hyper-v guest environment?
both 2008 R2 OSes (host and guest) are up to date with all updates (synced with Microsoft, not WSUS).OK, I'm not at the office now, but took my time to test out the restart scenarios on problematic virtual guest remotely.
No dice, same as it was, everything works fine after guest has IP configured in DHCP mode (IP reservation of 192.168.1.5 for specific MAC address) and it doesn't work after restart in static IP mode (same address, works before restart of guest).
I also took "arp -a" outputs at each step from host server and that was always saying there is only a single host (192.168.1.5 = VDC = problematic virtual guest) assigned to that IP address and always with same MAC, so that pretty much rules out
ARP/MAC troubles and no issues with switches/routers getting spoofed. Problem is most likely with the virtual guest (WS2008R2) or within the host running same OS.
Here are outputs:
A) VDC has IP configured in DHCP mode - always same, survives through restart (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : CD.lan
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Lease Obtained. . . . . . . . . . : Thursday, January 30, 2014 5:34:48 PM
Lease Expires . . . . . . . . . . : Friday, February 07, 2014 5:35:26 PM
Default Gateway . . . . . . . . . : 192.168.1.254
DHCP Server . . . . . . . . . . . : 192.168.4.5
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
B) VDC has IP configured in static mode - BEFORE RESTART (all works)
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.5(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
C) VDC has the same IP configured in static mode - AFTER RESTART (no more network connectivity at all, LAN in Public zone)
Windows IP Configuration
Host Name . . . . . . . . . . . . : VDC
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Microsoft Virtual Machine Bus Network Adapter
Physical Address. . . . . . . . . : 00-15-5D-01-D3-00
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::b9af:6679:3142:8799%13(Preferred)
Autoconfiguration IPv4 Address. . : 169.254.135.153(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 268440925
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-6F-5F-C2-00-15-5D-01-D3-00
DNS Servers . . . . . . . . . . . : 192.168.1.5
192.168.4.5
NetBIOS over Tcpip. . . . . . . . : Enabled
ARP -a output from host server at that time:
Interface: 192.168.1.4 --- 0xc
Internet Address Physical Address Type
192.168.1.5 00-15-5d-01-d3-00 dynamic
Throughout the testing, the hyper-v host IP configuration and IPconfig output was always staying same.
The Network Connection #2 is the only one the host uses (not shared with hyper-v guests).
The Network Connection #4 is assigned to Microsoft Virtual Switch hence why it doesn't show up in results, like below:
Windows IP Configuration
Host Name . . . . . . . . . . . . : HYPER-V
Primary Dns Suffix . . . . . . . : CD.lan
Node Type . . . . . . . . . . . . : Hybrid
IP Routing Enabled. . . . . . . . : No
WINS Proxy Enabled. . . . . . . . : No
DNS Suffix Search List. . . . . . : CD.lan
Ethernet adapter Local Area Connection 3:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #3
Physical Address. . . . . . . . . : 9C-8E-99-52-15-91
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Ethernet adapter Local Area Connection 2:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter #2
Physical Address. . . . . . . . . : 9C-8E-99-52-15-90
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : fe80::dc78:8a3b:38a5:7af3%12(Preferred)
IPv4 Address. . . . . . . . . . . : 192.168.1.4(Preferred)
Subnet Mask . . . . . . . . . . . : 255.255.255.0
Default Gateway . . . . . . . . . : 192.168.1.254
DHCPv6 IAID . . . . . . . . . . . : 312250009
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-1A-67-52-8F-9C-8E-99-52-15-93
DNS Servers . . . . . . . . . . . : 192.168.4.5
192.168.1.5
NetBIOS over Tcpip. . . . . . . . : Enabled
Ethernet adapter Local Area Connection:
Media State . . . . . . . . . . . : Media disconnected
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : HP Ethernet 1Gb 4-port 331i Adapter
Physical Address. . . . . . . . . : 9C-8E-99-52-15-93
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
On Monday I will install more test guests in Hyper-V host (WS2008R2), in variety of flavors like 7x64, 8.1x64, ws2012r2, and see if they show similar problems with static IP configuration when utilizing a dedicated NIC from host server.
Don't get me wrong, I can live with virtual DC running on DHCP IP reservation (which is based on MAC), because the virtual DC pretty much requires a physical PDC (hosting also DHCP in my network) to be present for safety reasons ... however I prefer a static
IP configuration on all servers, hence my question and surprise why it doesn't work. -
this problem is eating my sys log up, all my services seem to be working it would seem that this problem has happened to others i have seen no real
good answers to the question it would seem like a configuration problem here are the services i am running
address book
afp
dhcp
dns
firewall
ical
ichat
nat
open directory
print
push notification
smb
web
software just installed and the system was just setup as a gate way
net config :
Automatic:
Active Location: Yes
Services:
Ethernet 1:
Type: Ethernet
BSD Device Name: en0
Hardware (MAC) Address: 00:17:f2:02:75:22
IPv4:
Addresses: 173.11.2*0.***
Configuration Method: Manual
Router: 173.11.210.210
Subnet Masks: 255.255.255.252
IPv6:
Configuration Method: Automatic
DNS:
Server Addresses: 68.87.**.98, 68.**.69.**
Proxies:
Exceptions List: *.local, 169.254/16
FTP Passive Mode: Yes
SMB:
NetBIOSName: extremenet
WINSAddresses:
Workgroup: WORKGROUP
Ethernet 2:
Type: Ethernet
BSD Device Name: en1
Hardware (MAC) Address: 00:17:f2:02:75:23
IPv4:
Addresses: 192.168.1.1
Configuration Method: Manual
Subnet Masks: 255.255.255.0
IPv6:
Configuration Method: Automatic
DNS:
Server Addresses: 192.168.1.1
Proxies:
Exceptions List: *.local, 169.254/16
FTP Passive Mode: Yes
SMB:
NetBIOSName: extremenet
WINSAddresses:
Workgroup: WORKGROUP
AirPort:
Type: IEEE80211
BSD Device Name: en2
Hardware (MAC) Address: 00:17:f2:96:76:60
IPv4:
Configuration Method: DHCP
IPv6:
Configuration Method: Automatic
Proxies:
Exceptions List: *.local, 169.254/16
FTP Passive Mode: Yes
IEEE80211:
Join Mode: Automatic
PowerEnabled: 0
PreferredNetworks:
SecurityType: WPA2 Personal
SSID_STR: Airport Extreme
Unique Network ID: F3922B59-58B2-4E25-8BFA-8924012125FD
Unique Password ID: A2F3E2B9-DE2F-4B1F-960E-9F740F30F392
SMB:
NetBIOSName: extremenet
WINSAddresses:
Workgroup: WORKGROUP
Bluetooth DUN:
Type: PPP
IPv4:
Configuration Method: PPP
IPv6:
Configuration Method: Automatic
Proxies:
FTP Passive Mode: Yes
PPP:
ACSP Enabled: No
Display Terminal Window: No
Redial Count: 1
Redial Enabled: Yes
Redial Interval: 5
Use Terminal Script: No
Dial on Demand: No
Disconnect on Fast User Switch: Yes
Disconnect on Idle: Yes
Disconnect on Idle Timer: 600
Disconnect on Logout: Yes
Disconnect on Sleep: Yes
Idle Reminder: No
Idle Reminder Time: 1800
IPCP Compression VJ: Yes
LCP Echo Enabled: No
LCP Echo Failure: 4
LCP Echo Interval: 10
Log File: /var/log/ppp.log
Verbose Logging: No
SMB:
NetBIOSName: extremenet
WINSAddresses:
Workgroup: WORKGROUP
FireWire:
Type: FireWire
BSD Device Name: fw0
Hardware (MAC) Address: 00:16:cb:ff:fe:6e:28:18
IPv4:
Configuration Method: DHCP
IPv6:
Configuration Method: Automatic
Proxies:
Exceptions List: *.local, 169.254/16
FTP Passive Mode: Yes
SMB:
NetBIOSName: extremenet
WINSAddresses:
Workgroup: WORKGROUP
syslog:
Jul 4 17:18:49 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:18:54 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:19:25: --- last message repeated 5 times ---
Jul 4 17:19:25 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:19:30 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:20:01: --- last message repeated 5 times ---
Jul 4 17:20:01 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:20:06 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:20:38: --- last message repeated 5 times ---
Jul 4 17:20:49 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:20:52 extremenet com.apple.wikid.mailinglists[41461]: mail:status = "list-updated"
Jul 4 17:20:54 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:21:25: --- last message repeated 5 times ---
Jul 4 17:21:25 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:21:30 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:22:01: --- last message repeated 5 times ---
Jul 4 17:22:01 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:22:06 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:22:37: --- last message repeated 5 times ---
Jul 4 17:22:37 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:22:42 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:23:12: --- last message repeated 5 times ---
Jul 4 17:23:13 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:23:18 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:23:49: --- last message repeated 5 times ---
Jul 4 17:23:49 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:23:54 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:24:25: --- last message repeated 5 times ---
Jul 4 17:24:25 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:24:30 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:25:01: --- last message repeated 5 times ---
Jul 4 17:25:01 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:25:06 extremenet natd[38056]: failed to write packet back (Host is down)
Jul 4 17:25:38: --- last message repeated 5 times ---
Jul 4 17:25:49 extremenet natd[38056]: failed to write packet back (No route to host)
Jul 4 17:25:54 extremenet natd[38056]: failed to write packet back (Host is down)See "error -3259" here.
-
Bridging through built-in wireless to ethernet DHCP server
[originally posted here: Tiger Forums > Getting Online & Networking, where one suggestion was to try this forum]
I have a 1Gb ethernet LAN with my own DHCP, etc. servers, and an 802.11g WAP bridging to it using WPA2/AES. I've recently added two new Macs: an iMac connected to the ethernet and a MacBook connecting through its built-in wireless. This all works fine.
Since both Macs are 802.11n capable (with the addition of the $2 addon, which I've done), it occurred to me that I should be able to set up the built-in airport in the iMac as an 802.11n WAP that the MacBook could connect to as its preferred wireless network when the iMac's turned on, tripling it's connection speed to my LAN, and falling back to the 802.11g WAP when the iMac's not on.
I was able to do this pretty simply by setting up internet (LAN in my case) sharing on the iMac, and I could indeed get an 802.11n connection to it from the MacBook when the iMac was on, and fairly seamless failover to the 802.11g WAP when the iMac wasn't available.
Clearly, all the pieces are present to make my plan work, but there are two stumbling blocks:
1. I can't find a way to get the iMac to bridge directly to the ethernet, so that the central DHCP servers provide the configuration for the MacBook. I don't see an obvious way to allow DHCP, but not use the server built into the iMac (or configure it to hand out the addresses I want). It looks an awful lot like the iMac is NAT'ing the wireless to the ethernet, which is definitely not what I want.
Is there no way to configure the iMac's wireless as a passthrough (bridge) to the ethernet so it acts as a WAP (even if it only accepts one connection at a time)?
2. I have configured both Macs' wireless to connect to my WAP with WPA2/AES, and they do so just fine. When setting the iMac wireless up for internet sharing, why can't I set the same security options - it only offers me WEP, which I'm not willing to use.
I know the hardware can handle what I want, as can the BSD underpinnings of OS X (all of my LAN's servers run BSD variants), I just don't know how to configure it.
Can someone help?
Thanks.>It looks an awful lot like the iMac is NAT'ing the wireless to the ethernet, which is definitely not what I want.
That's exactly what it does. The 'Internet Sharing' option enables NAT.
This may or may not be a problem, though - what is the MacBook missing by getting its configuration from the iMac rather than your regular DHCP server?
(by default, when you turn on internet sharing the OS starts up a DHCP server on the shared interface).
You might be able to get what you want by just turning on IP forwarding rather than the whole NATD/DHCPD package, but I'm not sure:
<pre class=command>sudo sysctl -w net.inet.ip.forwarding=1</pre>
but you'd have to try it to see.
> When setting the iMac wireless up for internet sharing, why can't I set the same security options - it only offers me WEP, which I'm not willing to use
I don't know the technical reason for it, but I seem to recall that computer-to-computer wireless networks always (and only) use WEP. I don't know if this is because WPA isn't possible or if they just haven't gotten around to adding it, but WEP is your only option. -
Airport can no longer get DHCP address
Hello,
I'm at the point of dumping the airport base station in the trash, but thought I would try this first.
I have broadband internet service. It worked - until mid morning today. Suddenly it will not work. The base station (old one, white - snow?), though set for DHCP, now defaults to a self-addressed 169... address. I have tried:
- powering off the base station, the cable modem, powering up one at a time, etc etc. Internet provider (insight, IL) says they don't know why the apple base station is unable to renew the DHCP lease.
- The Airport Admin Utility is set to Ethernet, using DHCP. There is no "renew DHCP lease" button there, but I have switched it to connect using modem and then switched backed to Ethernet, hit Update, and back comes Using DHCP ... with a 169.254 address.
- I can connect through the cable modem with my powerbook without a problem. The address starts with 74.134.
I take it the self-assigned IP means there was a timeout or the airport was otherwise unable to get what it considered a valid IP.
Is the base station toast?
Should I buy a router and hook it to that? Seems redundant, with my setup (two laptops, one desktop connected to base station LAN port)
I've spent several hours reading (via direct connect to the cable modem) and trying different wiring / reset combinations, and have about had it. Any thoughts most welcome.
Thanks,
BrianIt is a long while since I tried Google Toolbar, I am not sure what it changes. But I would not expect it to totally remove your options to use the ordinary toolbars.
■ Try
* press the''' alt '''key on the keyboard, that may return the menu bar
* once you have the menubar '''View -> Toolbars ->''' and select which you need
* you may also use View-> Toolbars -> Customise and drag items back or use the restore default set option.
* right clicking on the toolbars also gets you to the customise and show toolbars options
■ have a look at [[Back and forward or other toolbar items are missing]]
PS
I hope you do not need to resort to editing registry settings, the firefox 'dragons' in prefs are user friendly compared with Windows registry. Messing up firefox prefs only really affects firefox normally; whereas errors in a registry edit may prevent you from even booting the computer. -
HP LaserJet P1606dn loses their IP address in DHCP mode
Hi,
We are currently encountering what seems to us to be a strange behavior with the HP LaserJet P1606dn printer. The behavior is that, while in DHCP mode, when it goes into sleep mode, it loses its IP address.
It shouldn't be bad because it should wake up when something is sent to it and get back its IP address, but it doesn't. It get stuck in the printing queue and we need to do an "ipconfig/ flushdns" on the appropriate server so it get back its address. This is kinda annoying because we can't even desactivate this sleep mode function, the best we can do is put it to 1 hour which is temporary because it still gonna loses its IP address anyway.
I have searched all over the net for an answer to our problem and the closest one I have find is one on HP forum where the P1606dn loses its IP address in manual mode and switch to DHCP. Even though it wasn't our exact problem, the recommanded solution was to update the 1606dn firmware, which we did. It sadly hasn't solve our problem. At least, we aren't forced to do a flushdns everytime this time and we can force it to print by printing the configuration page...
An other thing we have found is that, it always or well, very often create a second entry in the inversed zone of the dns with an IP adress it won't even use... It is probably important to note that when the printers loses its ip address, the information of the ipv4, the dns and the rest of the address are all 0.0.0.0.
It seems to me that when the printers enters in sleep mode, it loses its ip address so it can save energy, which would be a good thing, but then, it cannot get back its ip address and well, its like the printers says to himself "well, I am lost and I don't know where I am neither at which address I live but hey, it's ok, everything is just fine."
Our configuration :
Windows 7 professional 64 bit on users end
Windows server 2008 r2 enterprise
The printer is connected in LAN
Anyone has stumbled accross a problem like this before with this model?
Thank youThese settings are for setting up your wireless printer to stay connected to your router, keep wireless devices better connected and makes your router secure and hack proof.
1. Set a static IP in the printer (click here) outside the DHCP range of the router (check your manual).
This is for Linksys routers but can be used for all routers. Verify your DHCP range and change this
first if needed. More Wireless Printing help is here.
2. Verify in the printer that 'Auto Off' is disabled. Use the Embedded Web Server (EWS) by going to the
printers IP address in your browsers address bar, click Settings Tab/Auto Off. Or use the Printer
Assistant, Printer Home Page (EWS).
3. If the printer supports and has IPv6 enabled, turn off IPv6 in the printer.
4. If needed and you assigned a static IP address, try using 8.8.8.8 for the Manual DNS server and
8.8.4.4 preferred DNS server.
In the router: (Refer to your router manual for information)
5. Use a fixed wireless channel like 1, 6 or 11, never 'auto', try channel 1 first then the rest.
6. Set router to 20Mhz only, or 145Mbps depending on router.
7. Always use WPA2-AES (Personal) encryption, but you can try ‘mixed’ mode.
8. Disable WPS and never use it and disable UPnP for the routers security. Nobody can hack your
system now and helps with wireless connectivity (if you want to know why, search the web).
9. If you have a dual band router (2.4Ghz and 5.0Ghz bands), make sure the SSID’s are NOT the same,
they must be different for all bands, even for any Guest networks.
10. SSID broadcast must be enabled.
11. Save all settings. Power off both, wait 2 mins. Power on router wait 2 mins.
12. Power on printer and verify it reconnects to router.
Windows 7/8/8.1 Is Network Discovery on or off?
Control Panel/Network and Internet/Network and Sharing Center/Advanced sharing settings.
Under Home or Work (current profile) / Network Discovery.
Select "Turn on network discovery" and save changes.
Say thanks by clicking the Kudos Thumbs Up to the right in the post.
If my post resolved your problem, please mark it as an Accepted Solution ...
I worked for HP but now I'm retired! -
ISE 1.2 - Multiple NICs/Load Balancing for DHCP Probe
Hello guys
Just prepping an ISE 1.2 patch 8 setup in our organization. I am going for the virtual appliances with multiple NICs. It will be a distributed deployment with 4 x PSNs behind a load balancer and there is no requirement for wireless or guest user at the moment. I've got 2 points I will like to get some guidance on:
Our DC has a dedicated mgmt network and I plan to IP the gig0 interface of the PANs, MNTs and PSNs from this subnet. All device admin, clustering, config replication, etc will be over this interface. However, RADIUS/probe/other user traffic to the ISE PSNs will be over the gig1 interface which will be addressed from another L3 network. Is this a supported configuration in ISE?
I intend to use the DHCP probe as part of device profiling and will ideally like to have just an additional ip helper to add to our switch SVI config. Also, it will appear that WLCs can only be configured for 2 DHCP servers for a given network so another consideration for when we bringing our WLAN in scope. We however use ACE load balancers within our DC and from what I have read, they do not support DHCP load balancing. Are there any workarounds to using the DHCP probe with multiple PSNs without having to add each node as an ip helper/DHCP server on the NADs?
Thanks in advance
SayreHello Sayre-
For Question #1:
Management is restricted to GigabitEthernet 0 and that cannot be changed so you should be good there
You can configure Radius and Profiling to be enabled on other interfaces
Even though you are not using guest services yet, you can dedicate an interface just for that. As a result, you can separate guest traffic completely from your production network
Take a look at this link for more info:
http://www.cisco.com/c/en/us/td/docs/security/ise/1-2/installation_guide/ise_ig/ise_app_c-ports.html
For Question #2
If you are using a Cisco WLC and running code 7.4 and newer you don't need to mess with the IP helper configurations.
The controller can be configured to act as a collector for client profiling and interact with the DHCP thread along with the RADIUS accounting task that is running on the controller. The controller receives a copy of the DHCP request packet sent from the DHCP thread and parses the DHCP packet for two options:
–Option 12—HostName of the client
–Option 60—The Vendor Class Identifier
After this information is gathered from the DHCP_REQUEST packet, a message is formed by the controller with these option fields and is sent to the RADIUS accounting thread, which is in turn transmitted to the ISE in the form of an interim accounting message.
Both DHCP and HTTP profiling settings are located under the "Advanced" configuration tab in the WLC
On the other hand, you can also use Anycast for profiling. You can check out some of Cisco Live's sessions for more info on that. Here is one that is from a couple of years (There are more recent ones that are available as well):
http://www.alcatron.net/Cisco%20Live%202013%20Melbourne/Cisco%20Live%20Content/Security/BRKSEC-3040%20%20Advanced%20ISE%20and%20Secure%20Access%20Deployment.pdf
I hope this helps!
Thank you for rating helpful posts! -
I want to understand the differences in the way you can reserve a static address for a device on the network. I had previously set the device itself to an address and then reserved it with DHCP Client ID, which I thought was just the devices static addresss. I'm not sure if this was in fact correct or just happend to work. I know what a MAC address is, but I'm not really sure what the DHCP Client ID is. So it would be great if someone could clarify it, and the difference between reserving address by MAC Address or DHCP Client ID.
A MAC address is a unique identification consisting of letters and numbers in a form that looks like this:
xx:xx:xx:xx:xx:xx
Every network device has a MAC address, which can be found on a label on the bottom or back of the device. Apple calls this the Ethernet ID.
A DHCP Client ID is an optional name that you can assign to a device. For example, on your Mac....
Open System Preferences (gear icon on the dock)
Open Network
Click on Ethernet
Click Advanced at the lower right
You may be able to edit the DHCP Client ID here....for example.....you could enter MJ500's MacBook in the space provided. That would be the Client ID of your Mac. -
WRE54G and WAP54G DHCP Problem
Hi,
Please can someone help me.
Current setup:-
Cisco ASA 5505 with DHCP Server enabled on the inside interface.
Linksys WAP54G cabled directly into the above interface on the Cisco ASA.
Linksys WRE54G with a wireless connection to the above access point using the same SSID and Channel.
When connecting my laptop to the linksys access point, the laptop obtains an IP address allocated from the Cisco ASA and works perfectly.
When adding the WRE range extender into the mix and connecting my laptop via the extender the laptop fails to obtain an IP address. The extender is connecting to the AP ok, it has 2 blue lights and i get a strong signal.
I have carried out packet captures on both my laptop and the inside interface of the CISCO ASA. The capture on my laptop shows DHCP discovery packets leaving my wireless interface, however, i receive no acknowledgement. when i run the same capture on the Cisco ASA i see the discovery packet hit the interface and a subsequent dhcp offer packet leave the interface, however, the offer packet does not reach the laptop when connecting via the extender.
Can anyone kindly offer any advise that doesnt involve throwing the extender in the bin!!?
ThanksThe WRE54G is connected after the WAP.
The router's IP is 10.10.10.254 and is configured to allocate DHCP addresses within this range.
The AP's management IP is 10.10.10.1 and the gateway is 10.10.10.254 (router address).
The Extender's management IP is 10.10.10.2 and the gateway is 10.10.10.254 (router address).
When connecting to the wireless network via the AP, it connects and receives an address.
When connecting to the wireless network via the extender, it connects but does not receive a DHCP address. Signal is strong and the extender shows both blue lights.
Message Edited by marchingontogether on 02-03-2010 06:31 AM -
Question regarding Airport and DHCP settings
I currently had a Dlink 624 router that just died. I need to get a new wifi router and was looking at the airport extreme base station...
the question I have is with Dlink my dhcp is set to send out 192.168.0.xxx to my network. The apple is 10.0.0.xxx I believe. Can you change the airport extreme base station to 192.168.0.1? and serve 192.168.0.xxx across the network? The issue I have is I have other wifi devices that are already preset to accept the 192.168.0.xxx.AirPort Extreme Base Station Setup (AEBS) w/High-Speed Cable Modem
Modem/Router Power ReCycling
- Power-off the Cable modem, AEBS, & computer(s). (If possible, leave the modem off overnight.)
- Power-on the Cable modem; Wait at least 30 minutes.
- Power-on the AEBS; Wait at least 5 minutes.
- Power-on the computer(s)
Perform a "hard" reset of the AEBS.
- (ref: http://docs.info.apple.com/article.html?artnum=107451)
Setup the AEBS
With the network components powered down, set up the AEBS, using the AirPort Admin Utility, connect your computer directly (using an Ethernet cable) to the LAN port of the AEBS, and then, try these settings:
AirPort tab
- Base Station Name: <whatever you wish or use the default>
- AirPort Network Name: <whatever you wish or use the default>
- Create a closed network (unchecked)
- Wireless Security: Not enabled
- Channel: Automatic
- Mode: 802.11b/g Compatible
Internet tab
- Connect Using: Ethernet
- Configure: Using DHCP
- WAN Ethernet Port: Automatic
Network tab
- Distribute IP addresses (checked)
- Share a single IP address (using DHCP & NAT) (enabled)
- Use 192.168.0.1 addressing -
I recently had to replace my DSL router. My provider, Earthlink, walked me through the setup and I do have internet access if I connect directly to my Mac. When I tried to use my time capsule, it would not work. The Earthlink tech said I needed to reconfigure my time capsule to DHCP mode. I tried the set up manual and could not make sense of it. My 90 free service is long gone.
and the text in the router mode box came up DHCP and NAT, but the lettering was in a lighter shade than elsewhere and I could not open the drop down box.
You would have had to change some other settings on the AirPort to be able make changes in the drop down Router Mode box.
Your AirPort is already configured as Earthlink suggests.
Try powering off the entire network...all devices....in any order you want
Wait a few minutes
Start the Earthlink modem first and let it run 2-3 minutes by itself
Start the Time Capsule and let it run a full minute
Keep starting other devices the same way until everything is powered back up
Check the network
If still no improvement, I think you need to let Earthlink know that you have done as they asked, and ask for more steps to try.
Hopefully, another Earthlink user will see this post and offer any special information or tips that only they would know. -
How do i use my own dhcp server with airport extreme
I just bought an airport extreme and I'm trying to replace my linksys router and another access point.
I have my own dhcp/dns server and I want to continue using it. So far, I was not able to find the way to use NAT without DHCP (like I'm doing now with my current setup).
I want to give the device another chance before I return it to the store. Is there anything I can do?
ThanksI thought that you could figure out the answer for yourself, but if you need more confirmation.....the choices/options that you need do not exist on an AirPort router.
Cisco or Netgear might be brands to look at. Good luck in your quest. -
How do I access router setup page if the router DHCP service is disabled?
When I had DSL, my WRT54G was my DHCP master for my home network. When I got AT&T U-Verse, their "gateway" became the DHCP master and also the wireless access point. But the signal was not strong enough where I wanted to use it, so I hooked up the WRT54G again. I discovered that if I connected the U-Verse gateway to the "Internet" port on the WRT54G Linksys, then my home network was split in two, which I did not want. The WRT54G access point is physically somewhat distant from my wired computer, so I wanted to keep the U-Verse gateway as the DHCP master. (The U-Verse gateway is a router with four "computer" ports but no "Internet" port.)
I followed instructions on the Linksys web site, and using my wi-fi connected computer I re-programmed the WRT54G to be "Disabled" as a DHCP server. Then I powered down and physically connected the U-Verse gateway to a "Computer" port on the WRT54G. This solved my problem: my distant wi-fi computer now has a good signal, and both computers "see" each other.
However, now I seem to have lost access to the WRT54G setup "web page." Is it possible to access the innards of the WRT54G when its DHCP service is disabled? Or would I have to reset the device to factory configuration and start all over if I wanted to make any tweaks?You can still access the router's web configuration pages even if the internal DHCP server is disabled and it is connected via a LAN Ethernet port to your upstream router.
Did you reserve and IP addresses on the Uverse router for static IPs?
If you did, assign one of these to the Linksys router (LAN) and you will be able to access it from your LAN. Since you are not using the WAN port, the Linksys router will not pull an IP from the Uverse router. You are using the device as a switch. -
Oracle10g Installation problem on Linux with DHCP IP
Hi,
I am new to Oracle Products, I have tried to install Oracle 10G on Linux with DHCP IP.
I got the following warning while installing even though I have loopback interface configured.
Checking Network Configuration requirements ...
Check complete. The overall result of this check is: Failed <<<<
Problem: The install has detected that the primary IP address of the system is DHCP-assigned.
Recommendation: Oracle supports installations on systems with DHCP-assigned public IP addresses. However, the primary network interface on the system should be configured with a static IP address in order for the Oracle Software to function properly. See the Installation Guide for more details on installing the software on systems configured with DHCP.
Please help me in resolving this problem or Can I ignore this message?
My Server Configurations:
[root@SQAESMRH5 Oracle_Install_Errors]# ifconfig
eth0 Link encap:Ethernet HWaddr 00:12:3F:79:FA:2C
inet addr:10.10.121.61 Bcast:10.10.121.2 Mask:255.255.255.0
inet6 addr: fe80::212:3fff:fe79:fa2c/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:20751998 errors:0 dropped:0 overruns:0 frame:0
TX packets:19278549 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2150795393 (2.0 GiB) TX bytes:438232502 (417.9 MiB)
Interrupt:177
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:12383146 errors:0 dropped:0 overruns:0 frame:0
TX packets:12383146 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:1965045834 (1.8 GiB) TX bytes:1965045834 (1.8 GiB)
[root@SQAESMRH5 Oracle_Install_Errors]# cat /etc/hosts
# Do not remove the following line, or various programs
# that require network functionality will fail.
#::1 localhost6.localdomain6 localhost6
127.0.0.1 localhost.localdomain localhost
#::1 localhost6.localdomain6 localhost6
[root@SQAESMRH5 Oracle_Install_Errors]#This warning means it is not recommended to install Oracle 10g on a DHCP assigned IP address. It could work, but you won't be able to configure Enterprise Manager, since this tool requires a fixed IP address. If possible, have the IP address fixed.
~ Madrid
http://hrivera99.blogspot.com/ -
Hello,
I flashed my old router (an ASUS RT NI6) with DD-WRT and set it up as a repeater.
I can connect to the repeater with my desktop without problem, but my laptop somehow cannot. I usually run Gnome with NetworkManager. The error reported by NetworkManager was a timeout to get an address.
Since I couldn't get more information, I tried to manually connect to the wifi following these instructions: https://wiki.archlinux.org/index.php/Wireless_Setup
But dhcpcd fails with
michel@xone:~$ sudo dhcpcd wlp3s0
dhcpcd[1482]: version 6.1.0 starting
dhcpcd[1482]: wlp3s0: waiting for carrier
dhcpcd[1482]: timed out
dhcpcd[1482]: exited
So I tried to go with dhclient
michel@xone:~$ sudo dhclient -4 -d -v wlp3s0
Internet Systems Consortium DHCP Client 4.2.5-P1
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlp3s0/8c:70:5a:ff:a4:08
Sending on LPF/wlp3s0/8c:70:5a:ff:a4:08
Sending on Socket/fallback
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 3
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 11
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 9
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 15
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 13
No DHCPOFFERS received.
No working leases in persistent database - sleeping.
A little more information:
lspci -k
03:00.0 Network controller: Intel Corporation Centrino Advanced-N 6205 [Taylor Peak] (rev 96)
Subsystem: Intel Corporation Device c220
Kernel driver in use: iwlwifi
Kernel modules: iwlwifi
ip addr
2: wlp3s0: <BROADCAST,MULTICAST> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 8c:70:5a:ff:a4:08 brd ff:ff:ff:ff:ff:ff
Running
sudo ip link set wlp3s0 up
Then I get with ip addr
2: wlp3s0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq state DOWN group default qlen 1000
link/ether 8c:70:5a:ff:a4:08 brd ff:ff:ff:ff:ff:ff
sudo iw dev wlp3s0 scan -- with the relevant wifi I want to connect to
BSS be:ae:c5:c3:dc:22(on wlp3s0)
TSF: 702057511 usec (0d, 00:11:42)
freq: 2462
beacon interval: 100 TUs
capability: ESS ShortSlotTime (0x0401)
signal: -19.00 dBm
last seen: 2920 ms ago
Information elements from Probe Response frame:
SSID: fromage
Supported rates: 1.0* 2.0* 5.5* 11.0* 18.0 24.0 36.0 54.0
DS Parameter set: channel 11
TIM: DTIM Count 0 DTIM Period 1 Bitmap Control 0x0 Bitmap[0] 0x0
ERP: <no flags>
ERP D4.0: <no flags>
Extended supported rates: 6.0 9.0 12.0 48.0
HT capabilities:
Capabilities: 0x187c
HT20
SM Power Save disabled
RX Greenfield
RX HT20 SGI
RX HT40 SGI
No RX STBC
Max AMSDU length: 7935 bytes
DSSS/CCK HT40
Maximum RX AMPDU length 65535 bytes (exponent: 0x003)
Minimum RX AMPDU time spacing: 8 usec (0x06)
HT RX MCS rate indexes supported: 0-15
HT TX MCS rate indexes are undefined
HT operation:
* primary channel: 11
* secondary channel offset: no secondary
* STA channel width: 20 MHz
* RIFS: 1
* HT protection: nonmember
* non-GF present: 0
* OBSS non-GF present: 1
* dual beacon: 0
* dual CTS protection: 0
* STBC beacon: 0
* L-SIG TXOP Prot: 0
* PCO active: 0
* PCO phase: 0
WMM: * Parameter version 1
* u-APSD
* BE: CW 15-1023, AIFSN 3
* BK: CW 15-1023, AIFSN 7
* VI: CW 7-15, AIFSN 2, TXOP 3008 usec
* VO: CW 3-7, AIFSN 2, TXOP 1504 usec
The repeater used to have a WPA2 with a pre shared key, but I deactivated all security, so I just connect to the wifi with
sudo iw dev wlp3s0 connect fromage
Trying dhcpcd
michel@xone:~$ sudo dhcpcd wlp3s0
dhcpcd[1482]: version 6.1.0 starting
dhcpcd[1482]: wlp3s0: waiting for carrier
dhcpcd[1482]: timed out
dhcpcd[1482]: exited
Trying with dhclient
michel@xone:~$ sudo dhclient -4 -d -v -1 wlp3s0
Internet Systems Consortium DHCP Client 4.2.5-P1
Copyright 2004-2013 Internet Systems Consortium.
All rights reserved.
For info, please visit https://www.isc.org/software/dhcp/
Listening on LPF/wlp3s0/8c:70:5a:ff:a4:08
Sending on LPF/wlp3s0/8c:70:5a:ff:a4:08
Sending on Socket/fallback
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 6
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 7
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 14
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 21
DHCPDISCOVER on wlp3s0 to 255.255.255.255 port 67 interval 13
No DHCPOFFERS received.
Unable to obtain a lease on first try. Exiting.
I also made sure that I deactivated wicd, NetworkManaget, netctl-auto, dhcpcd before doing this.
I also tried to set a static ip since dhcp is failing
ip addr add 192.168.0.200/24 dev wlp3s0
ip route add default via 192.168.69.1
But that still doesn't work.
Am I missing something? Am I suppose to set a special mode for my card for a repeater?
I tried to look at the conf file on my desktop, but found nothing special.
I can connect with a wire to the repeater, it works fine too.
If anyone has an idea for something else to try, I would love to hear it : )
Thanks!If your DHCP is half way decent and you aren't running more than one DHCP server on a single network it should work. Some routers seem to be a little fussy when it comes to linux clients. Of course, Arch has a good dhcp server if your router isn't forgiving. But this problem would not be existing on the repeater.
Maybe you are looking for
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