Ipad DHCP Server Options

Hello
we are currently evaluating the ipad, but we have started to have issues when we altered our DHCP server Options (Needed as we are also evaluating XenDesktop 4)
Option 66 -XenDesktop
option 67 - XenDesktop
option 43 - Mitel VoIP
since these changes all ipads struggle to get an IP address , it can take up to 15 minuets to connect, My Ipad witch has a static IP connects fine.
is anybody having any issues like this ?

steven_cuthill wrote:
Hello
we are currently evaluating the ipad, but we have started to have issues when we altered our DHCP server Options (Needed as we are also evaluating XenDesktop 4)
Option 66 -XenDesktop
option 67 - XenDesktop
option 43 - Mitel VoIP
since these changes all ipads struggle to get an IP address , it can take up to 15 minuets to connect, My Ipad witch has a static IP connects fine.
is anybody having any issues like this ?
You probably should address this question directly to Apple as you are not likely to get any answer here. This could be a bug in how DHCP options are handled.
United Kingdom (44) 0844 209 0611 www.apple.com/uk/support/

Similar Messages

Configure DHCP Server options for Internet Sharing?

Good morning, all.
I have a Sprint (Sierra 595U) AirCard internet connection, which I'm sharing over my AirPort (using OS X's built-in Internet Sharing) to several Windows clients in my office. I see that when Sharing is enabled, en1 takes on the address 10.0.2.1 by default, as well as the role of default gateway/router and DHCP server for the Windows clients.
My question is: Can I configure the IP addresses and DHCP options for Internet Sharing to another address/mask scheme?
Just like I changed my home wireless network away from the default 192.168.1.0/24 for security reasons, I'd like to do the same here.
Thanks and Regards,
BrooklynWalker

Some paranoia is good.
Yes, of course security paranoia can be cultured. like yogurt
I googled.
This might help:
http://www.aleph0.com/computing/macosx/dhcp-setup/
but from what I just read, changing away from the default net & mask might be putzy.Some other discussions for you:
http://www.macosxhints.com/article.php?story=20050331194834746
or you might see something here that helps.
Sorry not to be more specific. Hard to tell if you already googled for yourself.
I'll let someone smarter than I am take a look for you, here.

Microsoft DHCP Server - Option 43 Setup

I have the scope configured properly as far as the 241 Option with Option 43 and the VCI in it for both the 1130 and 1200 series AP's. However, how do you make this work if your subnet has both 1200 and 1130's in it? Basically if I have two 241 options set, the 1130 comes in first allowing hte 1130's to associate, but not the 1200's. If I remove the 1130 Option 241, the 1200's associate. Basically, how do I get both to work from the scope correctly?
Thanks,
Raun

Hi Raun,
Here is some additional info;
This section contains a DHCP Option 43 configuration example on a Windows 2003 Enterprise DHCP server for use with lightweight access points. For other DHCP server implementations, consult the DHCP server documentation for configuring DHCP Option 43. In Option 43, you should use the IP address of the controller management interface.
****Note DHCP Option 43 is limited to one access point type per DHCP pool. You must configure a separate DHCP pool for each access point type.****
From this doc;
http://www.cisco.com/en/US/docs/wireless/access_point/1200/installation/guide/120h_g.html
DHCP OPTION 43 for Lightweight Cisco Aironet Access Points Configuration Example
http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a00808714fe.shtml#t1
Hope this helps!
Rob

SF300-24 DHCP Server not responding (worked once but not again)

Tried to get the new firmware DHCP Server option working but after turning it off and back on it doesn't seem to give any addresses anymore.
Anyone else having troubles or success actually using the SF300 v1.4 DHCP Server?
I even tried factory default reset but no luck.
When I did have it working everything was good but the older Cisco Meraki would not get an IP address so I had to revert to an older DHCP server. When I tried again today by turning the older server off and the SF300 back on, none of the Windows machines that previously would work would get an address.
Am running:
System Summary
System Information
System Operational Mode:
L2 Mode
System Description:
SF300-24 24-Port 10/100 Managed Switch
System Location:
Edit
System Contact:
Edit
Host Name:
switche2653d
Edit
System Object ID:
1.3.6.1.4.1.9.6.1.82.24.1
System Uptime:
0 day(s), 0 hr(s), 37 min(s) and 28 sec(s)
Current Time:
17:33:23;2014-Aug-06
Base MAC Address:
00:25:84:e2:xx:xx
Jumbo Frames:
Disabled
Software Information
Firmware Version (Active Image):
1.4.0.88
Firmware MD5 Checksum (Active Image):
66ab3618cb29023da5ce7c2177e6c3d4
Firmware Version (Non-active):
1.3.7.18
Firmware MD5 Checksum (Non-active):
1f59c2af2f50786e1a8a3146de42c867
Boot Version:
1.3.5.06
Boot MD5 Checksum:
da44c9c583e5a8a274f911c4d16f501e
Locale:
en-US
Language Version:
1.4.0.88
Language MD5 Checksum:
N/A
TCP/UDP Services Status
Edit
HTTP Service:
Enabled
HTTPS Service:
Enabled
SNMP Service:
Disabled
Telnet Service:
Disabled
SSH Service:
Disabled
Serial Number:
DNI15xxxxx
PID VID:
SRW224G4-K9 V01

Tried to get the new firmware DHCP Server option working but after turning it off and back on it doesn't seem to give any addresses anymore.
Anyone else having troubles or success actually using the SF300 v1.4 DHCP Server?
I even tried factory default reset but no luck.
When I did have it working everything was good but the older Cisco Meraki would not get an IP address so I had to revert to an older DHCP server. When I tried again today by turning the older server off and the SF300 back on, none of the Windows machines that previously would work would get an address.
Am running:
System Summary
System Information
System Operational Mode:
L2 Mode
System Description:
SF300-24 24-Port 10/100 Managed Switch
System Location:
Edit
System Contact:
Edit
Host Name:
switche2653d
Edit
System Object ID:
1.3.6.1.4.1.9.6.1.82.24.1
System Uptime:
0 day(s), 0 hr(s), 37 min(s) and 28 sec(s)
Current Time:
17:33:23;2014-Aug-06
Base MAC Address:
00:25:84:e2:xx:xx
Jumbo Frames:
Disabled
Software Information
Firmware Version (Active Image):
1.4.0.88
Firmware MD5 Checksum (Active Image):
66ab3618cb29023da5ce7c2177e6c3d4
Firmware Version (Non-active):
1.3.7.18
Firmware MD5 Checksum (Non-active):
1f59c2af2f50786e1a8a3146de42c867
Boot Version:
1.3.5.06
Boot MD5 Checksum:
da44c9c583e5a8a274f911c4d16f501e
Locale:
en-US
Language Version:
1.4.0.88
Language MD5 Checksum:
N/A
TCP/UDP Services Status
Edit
HTTP Service:
Enabled
HTTPS Service:
Enabled
SNMP Service:
Disabled
Telnet Service:
Disabled
SSH Service:
Disabled
Serial Number:
DNI15xxxxx
PID VID:
SRW224G4-K9 V01

How can configure scope options in dhcp server

Good Night Partners.
I need configure scope options in dhcp server on mac mini.
i dont know how to do.
its my first mac and i confuse.
Can anybody help me please.

Are you referring to DHCP Option Codes? If so then this can be done with the DHCP server included with Mac OS X Server. However Apple do not provide a tool for doing this nor for encoding the values in the required format.
What you will need to do is edit the DHCP Server configuration file manually using a text editor. This configuration file is located at /etc/bootpd.plist before you do this I advise having a read of the Unix man page for bootpd (the DHCP server software Apple use).
You can use a utility I have written to generate the required information and then paste this in to /etc/bootpd.plist it can be downloaded from -
http://web.me.com/jelockwood/MyUtilities/dhcp.html

Does option 43 matter ? WLC5508 ver 7.2 using internal DHCP server

I am using a WLC 5508 and its internal DHCP server. I cant find anywhere I can setup option 43. However, the access points are connected in just fine. Do I need to worry about setting up a seperate DHCP server to get option 43 setup properly ?
Thank you.

Sorry I didnt make my question clear.
I am using a WLC 5508 and its internal DHCP server. I cant find anywhere I can setup option 43.
When I connect a CAPWAPP Access Point to the network, it receives IP address from the WLC 5508 DHCP service just fine. It shows up in the access points list and users can connect to it no problem.
Do I need to worry about setting up a seperate DHCP server to get option 43 setup properly ?

Netinstall DHCP Options for Windows DHCP server

Hello,
We want to use Netinstall for imaging our Mac's. I don't want to add another DHCP server to support the Netinstall options. Can I add the Netinstall DHCP boot options to my existing Windows DHCP server? If it's possible, could you let me know what they are?
Thanks for any help.
All the best.
Kevin

The NetBoot technology does not use the traditional method for discovering the TFTP and NFS servers (DHCP options), but instead uses BSDP (Boot Service Discovery Protocol). On Mac OS X Server, bootpd happens to handle both DHCP and BSDP, and is configured to provide one or both services as needed. Check out the man page for bootpd, which goes into great detail as to how NetBoot functions.
The short version is that you don't have to make any modifications to your existing DHCP server (it just has to provide a host IP address to the client, optionally with a router IP and DNS IPs). You just need to enable NetBoot on a Mac OS X Server system sitting on the same subnet as your clients.
Shiloh
PowerMac G5 Mac OS X (10.4.7)

Can I use DHCP snooping and IOS DHCP server on the same switch stack

Hello,
I am shortly going to be deploying a Cisco CallManager solution for a customer whose network comprises stacks of Catalyst 3850 switches.
There is no separate core/server farm switch so the CallManager servers, voice gateways and IP phones will all plug into the same stack and be in the same VLAN (not my choice!).
For security we want to enable DHCP snooping and were planning on using the IOS DHCP server on the Catalyst switch stack.
Will this work? - when I enable DHCP snooping in networks with separate access layer switches I set the uplinks to the core as trusted links.
I am not sure whether DHCP snooping will work in this case. Do I need to set the VLAN interface on the switch as trusted, is this even possible?
Unfortunately I do not have access to a layer 3 switch to test this at the moment.
Thanks

Nope. That's the issue.
They'll sync on a third device acting as a hotspot, but the device sending a signal is not "on" the network it creates so the airport is all by itself on that network. At least that is what it looks like to me. Anyone have another take on it? Seems pretty silly that an iPad can put out a wifi signal, an Airport Express can receive a wifi signal, and yet there is no simple way to get them to communicate under this particular condition.

Can I use ASA to be a DHCP Server use in WLC wireless Client

I want to use ASA to be a DHCP Server for Wireless Client not it can't.
I check the debug log in WLC, I confirm the WLC have send the request to ASA.
In the ASA, it don't have any hits in the rule when the WLC send the DHCP relay request.
I have try don't use dhcp relay in WLC but don't success. Anybody have the same case with me? And Is the ASA can't support DHCP relay agent to request to get the IP Addr.
P.S. In the Network Design limitation so I can't use WLC to be DHCP Server.
Equipment:
ASA5510
WLC4402
How can I fix it.
Thank you very much

The issue is that the ASA doesn't accept DHCP requests from a relay agent, only broadcast DHCP requests. In the 4.2 version for the controllers there is now an option so you can change the way the controller forwards DHCP requests so that it is sent as a broadcast and not from a relay agent.

DHCP Setup across multiple VLANs on RV325 - DHCP Server only working on VLAN 1

I have multiple VLAN subnets defined on my RV325 - when I try and utilize a DHCP Server on each VLAN, it only seems to be issuing IP Addresses to clients on VLAN ID 1. When I first set this up months ago, I thought I had tested it providing IP Addresses via the other subnets. Now that I am trying to do so, it isn't working "as expected". Example - I am using VLAN 25 as the GuestWireless subnet utilizing a separate 802.11n WAP that is set to Bridge connections to the IP Address of the VLAN interface. Devices are able to connect to the WAP, but end up with a self-assigned IP Address 169.x.x.x address. There has to be an easy fix to this, but I seem to be "stuck" figuring out what it is…pointers/redirects appreciated. Thanks!

Thanks - I've already reviewed that information before I posted. I've been working with DHCP since the mid-90's, so I'm comfortable with the settings/configuration I need to leverage to make this work via other means using various Network-based OSes.
I'm wondering if there are other options in configuring this device that can impact the ability to dynamically serve IP addresses on a VLAN/subnet-by-VLAN/subnet basis.
As I did more testing, I discovered when I reserved an IP Address via the IP & MAC Binding option within the DHCP Settings, those devices would receive their static reservations and work as expected, so the problem seems to be leveraging the DHCP Pool for devices connecting to VLANs other that VLAN 1.
Any ideas as to why the DHCP Pool's are "non-functioning" for the other VLANs is greatly appreciated...
Each VLAN is setup with a separate DHCP Server configuration as shown below:
VLAN ID = 1 (Default, Inter VLAN Routing = Enabled, LAN1-6 = Untagged, LAN7=Tagged, LAN8=Excluded, LAN9-14 Untagged)
Device IP Address = 172.16.xxx.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 172.16.xxx.100
Range End = 172.16.xxx.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
Correctly serving IP Addresses via DHCP (both static and dynamic) to Wired devices & Wireless devices connecting through WAP (set to Bridge)
VLAN ID = 25 (GuestWireless, Inter VLAN Routing = Disabled, LAN1-LAN7 = Excluded, LAN8 = Untagged, LAN9-14 = Excluded)
Device IP Address = 172.16.yyy.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 172.16.yyy.100
Range End = 172.16.yyy.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
NOT serving dynamic IP Addresses via DHCP to Wired devices & Wireless devices connecting through WAP (set to Bridge)
Static DHCP Reservations setup via IP & MAC Binding settings DO WORK in terms of providing the assigned static IP Address to the client. Inbound/Outbound traffic to Internet works for devices with Static DHCP Reservations.
VLAN ID = 100 (Voice, Inter VLAN Routing = Disabled, LAN1-6 Excluded, LAN7 = Untagged, LAN8-14 = Excluded)
Device IP Address = 192.168.zzz.1
Subnet Mask = 255.255.255.0
DHCP Mode = DHCP Server
Remote DHCP Server = 0.0.0.0
Client Lease Time = 1440 min
Range Start = 192.168.zzz.100
Range End = 192.168.zzz.199
DNS Server = Use DNS as Below
Static DNS 1 = 208.67.222.222
Static DNS 2 = 208.67.220.220
WINS Server = 0.0.0.0
NOT serving dynamic IP Addresses via DHCP to Wired devices & Wireless devices connecting through WAP set to Bridge
Static DHCP Reservations setup via IP & MAC Binding settings DO WORK in terms of providing the assigned static IP Address to the client. Inbound/Outbound traffic to Internet works for devices with Static DHCP Reservations.

Can't upgrade my ipad2 to ios5 .. itunes says ipad update server not found

I have my main desktop I use for setting up my new iPad2. Syncs fine, but when I tried to update to ios5, keep getting message that ipad update server is not available, check internet connection. Itunes sees the internet, because it allows me to connect to the istore .. etc. Changed cables, I have tried it with firewall on, and firewall off .. makes no difference. The test shows no connection, but you can see by the diagnostics that it did connect.
PC is XP Pro,
I could connect fine from my laptop, working on same home network, however if I upgrade, it will dump all my apps .. I don't want to lose everything.
Is there a way to unsync my desktop, then sync with my laptop instead, backup, then do the update from my laptop?
Here is the info below ..   Thank you ..
The diagnostics file shows;
Microsoft Windows XP Home Edition Service Pack 3 (Build 2600)
Gigabyte Technology Co., Ltd. G31M-S2L
iTunes 10.5.1.42
QuickTime 7.7.1
FairPlay 1.13.36
Apple Application Support 2.1.5
iPod Updater Library 10.0d2
CD Driver 2.2.0.1
CD Driver DLL 2.1.1.1
Apple Mobile Device 4.0.0.97
Apple Mobile Device Driver 1.57.0.0
Bonjour 3.0.0.10 (333.10)
Gracenote SDK 1.9.5.502
Gracenote MusicID 1.9.5.115
Gracenote Submit 1.9.5.143
Gracenote DSP 1.9.5.45
Current user is an administrator.
The current local date and time is 2011-11-27 20:39:51.
iTunes is not running in safe mode.
WebKit accelerated compositing is enabled.
HDCP is not supported.
Core Media is not supported. (16002)
Video Display Information
Intel(R) G33/G31 Express Chipset Family
**** External Plug-ins Information ****
No external plug-ins installed.
iPodService 10.5.1.42 is currently running.
iTunesHelper 10.5.1.42 is currently running.
Apple Mobile Device service 3.3.0.0 is currently running.
**** Network Connectivity Tests ****
Network Adapter Information
Description:          Realtek RTL8168/8111 PCI-E Gigabit Ethernet NIC - Packet Scheduler Miniport
IP Address:          192.168.1.99
Subnet Mask:          255.255.255.0
Default Gateway:          192.168.1.1
DHCP Enabled:          No
DHCP Server:          255.255.255.255
Lease Obtained:          Wed Dec 31 16:00:00 1969
Lease Expires:          Wed Dec 31 16:00:00 1969
DNS Servers:          192.168.1.1
Active Connection:          (none)
Connected:          No
Online:                    No
Using Modem:          Yes
Using LAN:          No
Using Proxy:          No
SSL 3.0 Support:          Enabled
TLS 1.0 Support:          Enabled
Firewall Information
Windows Firewall is on.
iTunes is enabled in Windows Firewall.
Connection attempt to Apple web site was successful.
Connection attempt to browsing iTunes Store was successful.
Connection attempt to purchasing from iTunes Store was successful.
Connection attempt to iPhone activation server was successful.
Connection attempt to firmware update server was successful.
Connection attempt to Gracenote server was successful.
Last successful iTunes Store access was 2011-11-27 20:27:00.

It's my understanding that you do not need Lion on your Mac but you do need the latest version of iTunes. If you already have this, there may be some other problem.

Dhcp server won't admit my Arch Linux (though Win's have no problems)

1. Generally my dhcpcd works fine in every network (and always has, I have not changed anything substantial).
2. Currently I am in a network (for just a couple of weeks) in which it does not.
3. The network will ignore all my dhcp requests over both network devices, enp1s0 and wlp2s0 (ethernet and wifi)
4. When trying the same from Windows (dual boot), the dhcp client works brilliantly (i.e. the hardware is fine)
5. I can force entry into the cable network by simply assigning an IP address and setting netmask and gateway as was configured by dhcp when I tried from Windows
6. For wifi this does not work. More specifically it works for a brief moment if (and only if) I was connected from Windows immediately before and assign myself the same IP address (I can ping the gateway and also 8.8.8.8). After this moment the network apparently kicks me out (cannot ping anything any more, nothing answers). dhcpcd inform (dhcpcd -s <IP Adress>) does not fare better.
7. I tried changing some of the settings in dhcpcd.conf that have been given as reasons for similar problems in the forums, archwiki, or somewhere else, including exchanging 'duid' for 'clientid', and commenting out 'require dhcp_server_identifier'. Does not help. My dhcpcd.conf, see below.
8. dhclient does not work either.
What I want: Connect to the internet via wifi from Arch.
I guess this comes down to making the dhcp server believe my Arch was one of the Windowses it is used to. How do I do that?
I understand that dhcp does not involve clients revealing their operating systems to the servers; but some configurations are likely different between Arch and Windows. I am not used to working with Windows and have no idea how to access the dhcp client configuration settings there (if this is even possible) to get an idea what exactly is different. Here is my dhcpcd.conf - any ideas what exactly about it displeases the server so much or what I might change or add to make the server more pleasantly inclined?
dhcpcd.conf
hostname
clientid
#duid
persistent
option rapid_commit
option domain_name_servers, domain_name, domain_search, host_name
option classless_static_routes
option ntp_servers
#require dhcp_server_identifier
nohook lookup-hostname
noipv4ll
I would include the logs as well, but they are boring beyond belief, do not contain anything except for dhcpcd trying and failing with timeout.

Thanks, MoonSwan & ewaller,
MoonSwan wrote:Windows' IP address and network settings navigate to: Control Panel -> Network and Internet -> Network Connections -> Click on Device Here (WIFI or LAN) -> Properties and from there you should be able to see the settings you need to figure out what's going on in Windows.
Found that, There are a lot of "Advanced properties", for instance "Bandwidth Capacity" is set to "11b/g: 20MHz", "BSS Mode" is set to "802.11n Mode", "Fragmentation Threshold" to "2346" (whatever that may mean) ... etc. Unfortunately, I cant copy any of that; most of it also seems rather unimportant; also I left all this on its default setting when I followed the instructions on how to connect to this wifi on Windows.
However, here is some information I managed to squeeze out of the pathetic, pittyful Windows terminal which they call the "Comand Line"
C:\Windows\system32> ipconfig /all
<...>
Wireless LAN adapter Wireless Network Connection:
Connection-specific DNS Suffix . : <the network name>
Description . . . . . . . . . . . : <hardware description> 802.11b/g/n (2.4GHz)
Physical Address. . . . . . . . . : <the mac address>
DHCP Enabled. . . . . . . . . . . : Yes
Autoconfiguration Enabled . . . . : Yes
Link-local IPv6 Address . . . . . : <some ipv6> %13(Preferred)
IPv4 Address. . . . . . . . . . . : <the ipv4> (Preferred)
Subnet Mask . . . . . . . . . . . : <subnet mask>
Lease Obtained. . . . . . . . . . : Fri, 23. May 2014 19:47:10
Lease Expires . . . . . . . . . . : Fri, 23. May 2014 21:17:09
Default Gateway . . . . . . . . . : <gateway ip>
DHCP Server . . . . . . . . . . . : <some ip that is not part of the local subnet>
DHCPv6 IAID . . . . . . . . . . . : 319352249
DHCPv6 Client DUID. . . . . . . . : 00-01-00-01-18-9F-0F-D6-E0-DB-55-CF-26-6
DNS Servers . . . . . . . . . . . : <a few dns server ip's>
NetBIOS over Tcpip. . . . . . . . : Enabled
Tunnel adapter Teredo Tunneling Pseudo-Interface:
Connection-specific DNS Suffix . :
Description . . . . . . . . . . . : Teredo Tunneling Pseudo-Interface
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : <some ipv6> (Preferred)
Link-local IPv6 Address . . . . . : <another ipv6> %12(Preferred)
Default Gateway . . . . . . . . . :
NetBIOS over Tcpip. . . . . . . . : Disabled
Tunnel adapter 6TO4 Adapter:
Connection-specific DNS Suffix . : <the network name>
Description . . . . . . . . . . . : Microsoft 6to4 Adapter
Physical Address. . . . . . . . . : 00-00-00-00-00-00-00-E0
DHCP Enabled. . . . . . . . . . . : No
Autoconfiguration Enabled . . . . : Yes
IPv6 Address. . . . . . . . . . . : <some ipv6> (Preferred)
Default Gateway . . . . . . . . . : <another ipv6>
<yet another ipv6>
DNS Servers . . . . . . . . . . . : <the same ipv4 dns server ip's as above>
NetBIOS over Tcpip. . . . . . . . : Disabled
C:\Windows\system32> netsh wlan show all
Wireless System Information Summary
(Time: 23.05.2014 20:38:49 W. Europe Daylight Time)
=======================================================================
============================== SHOW DRIVERS ===========================
=======================================================================
Interface name: Wireless Network Connection
Driver : <hardware description> 802.11b/g/n (2.4GHz)
Vendor : Broadcom
Provider : Broadcom
Date : 21.01.2012
Version : 6.20.55.31
INF file : C:\Windows\INF\oem25.inf
Files : 5 total
C:\Windows\system32\DRIVERS\BCMWL664.SYS
C:\Windows\system32\bcmihvsrv64.dll
C:\Windows\system32\bcmihvui64.dll
C:\Windows\system32\drivers\vwifibus.sys
C:\Windows\system32\bcmwlcoi.dll
Type : Native Wi-Fi Driver
Radio types supported : 802.11n 802.11g 802.11b
FIPS 140-2 mode supported : Yes
Hosted network supported : Yes
Authentication and cipher supported in infrastructure mode:
Open None
Open WEP
Shared None
Shared WEP
WPA2-Enterprise TKIP
WPA2-Personal TKIP
WPA2-Enterprise CCMP
WPA2-Personal CCMP
WPA2-Enterprise Vendor defined
WPA2-Enterprise Vendor defined
Vendor defined Vendor defined
Vendor defined Vendor defined
Vendor defined TKIP
Vendor defined CCMP
Vendor defined Vendor defined
Vendor defined Vendor defined
WPA-Enterprise TKIP
WPA-Personal TKIP
WPA-Enterprise CCMP
WPA-Personal CCMP
Authentication and cipher supported in ad-hoc mode:
WPA2-Personal CCMP
Open None
Open WEP
IHV service present : Yes
IHV adapter OUI : [00 10 18], type: [00]
IHV extensibility DLL path: C:\Windows\System32\bcmihvsrv64.dll
IHV UI extensibility ClSID: {aaa6dee9-31b9-4f18-ab39-82ef9b06eb73}
IHV diagnostics CLSID : {00000000-0000-0000-0000-000000000000}
=======================================================================
============================= SHOW INTERFACES =========================
=======================================================================
There is 1 interface on the system:
Name : Wireless Network Connection
Description : 802.11b/g/n (2.4GHz)
GUID : 6d122ca5-cdc2-42d1-a1fb-3754098b19eb
Physical address : <the mac address>
State : connected
SSID : <ssid>
BSSID : <access point mac address>
Network type : Infrastructure
Radio type : 802.11n
Authentication : WPA2-Enterprise
Cipher : CCMP
Connection mode : Auto Connect
Channel : 1
Receive rate (Mbps) : 72
Transmit rate (Mbps) : 72
Signal : 83%
Profile : <ssid>
Hosted network status : Not available
=======================================================================
=========================== SHOW HOSTED NETWORK =======================
=======================================================================
Hosted network settings
Mode : Disallowed
Settings : <Not configured>
Hosted network status
Status : Not available
=======================================================================
============================= SHOW SETTINGS ===========================
=======================================================================
Wireless LAN settings
Show blocked networks in visible network list: No
Only use GP profiles on GP-configured networks: No
Hosted network mode allowed in WLAN service: No
Allow shared user credentials for network authentication: Yes
Block period: Not Configured.
Auto configuration logic is enabled on interface "Wireless Network Connection"
=======================================================================
============================== SHOW FILTERS ===========================
=======================================================================
Allow list on the system (group policy)
<None>
Allow list on the system (user)
<None>
Block list on the system (group policy)
<None>
Block list on the system (user)
<None>
=======================================================================
=========================== SHOW CREATEALLUSER ========================
=======================================================================
Everyone is allowed to create all user profiles.
=======================================================================
============================= SHOW PROFILES ===========================
=======================================================================
Profiles on interface Wireless Network Connection:
Group policy profiles (read only)
<None>
User profiles
All User Profile : <ssid>
<other profile names>
=======================================================================
========================== SHOW PROFILES NAME=* =======================
=======================================================================
Profile eduroam on interface Wireless Network Connection:
=======================================================================
Applied: All User Profile
Profile information
Version : 1
Type : Wireless LAN
Name : <ssid>
Control options :
Connection mode : Connect automatically
Network broadcast : Connect only if this network is broadcasting
AutoSwitch : Do not switch to other networks
Connectivity settings
Number of SSIDs : 1
SSID name : "<ssid>"
Network type : Infrastructure
Radio type : [ Any Radio Type ]
Vendor extension : Not present
Security settings
Authentication : WPA2-Enterprise
Cipher : CCMP
Security key : Absent
802.1X : Enabled
EAP type : Microsoft: Protected EAP (PEAP)
802.1X auth credential : Machine or user credential
Cache user information : Yes
<other profiles ...>
=======================================================================
======================= SHOW NETWORKS MODE=BSSID ======================
=======================================================================
Interface name : Wireless Network Connection
There are 4 networks currently visible.
SSID 1 : eduroam
Network type : Infrastructure
Authentication : WPA2-Enterprise
Encryption : CCMP
BSSID 1 : <other access point ssid>
Signal : 2%
Radio type : 802.11n
Channel : 11
Basic rates (Mbps) : 1 2 5.5 11
Other rates (Mbps) : 6 9 12 18 24 36 48 54
BSSID 2 : <other access point ssid>
Signal : 0%
Radio type : 802.11n
Channel : 11
Basic rates (Mbps) : 1 2 5.5 11
Other rates (Mbps) : 6 9 12 18 24 36 48 54
BSSID 3 : <access point ssid>
Signal : 87%
Radio type : 802.11n
Channel : 1
Basic rates (Mbps) : 1 2 5.5 11
Other rates (Mbps) : 6 9 12 18 24 36 48 54
BSSID 4 : <other access point ssid>
Signal : 0%
Radio type : 802.11n
Channel : 1
Basic rates (Mbps) : 1 2 5.5 11
Other rates (Mbps) : 6 9 12 18 24 36 48 54
SSID 2 : <...>
What I find odd is this "Taredo Tunneling Pseudo-Interface". As a matter of fact, I have not the slightest idea if this is happening inside this local Windows I have here or if this is something real in the network configuration (on the other side of the access point)... It apparently should tunnel IPv6 to IPv4 and/or vice versa. However, why would there be two connections over the same network interface (IPv6 and IPv4)...
What is odd as well is that the DHCP server is not part of the subnet my Windows is in. It just seems to announce IP, netmask, gateway to the Windows ... (the gateway is in the subnet). Could it be that the Linux dhcp client does not accept something like that. No, that's unlikely, right? dhcpcd -d should have reported this...
MoonSwan wrote:Btw, love the name,
Thanks. Likewise
MoonSwan wrote:it's nice to see such a name after seeing so many that are intentionally hurtful to others of any stripe in a rainbow.
Actually, I always felt that the Arch Forum is quite tolerant in this respect. (And so is reddit, but of course, you are right, there are places on the internet where you can run into a lot of assholes. Kind of like in the real world... Quite frustrating.)
ewaller wrote:I guess it could be a MAC problem. but I don't know.
Unlikely; on windows the mac address is the same.
ewaller wrote: Can you get to the router logs? Can you see if the router saw a solicitation?
no. and given their network configuration I don't suppose the IT people here would be very forthcoming if I asked them. Their helpdesk said that they couldn't help me since my laptop was not one of their computers.
ewaller wrote:Also, (just a sanity check) are you sure you are connected to the correct access point? But that does not make sense -- you said this happens on wired as well sad
Dang.
I am. It's WPA2 encrypted & I only have access data to this one wifi network. (To avoid confusing everyone with mentioning too many different things, I did not detail this in the original post. I am accessing it using wpa_supplicant running in a terminal; wpa_supplicant works fine says "connection succeeded" etc. So the problem is not in the WPA/ wifi-connection layer but really in the IP/dhcp layer.)
ewaller wrote:Is this a corporate environment? A school perhaps?
Yes, a university. They have someone working here who went through great lengths to make it difficult for people to connect to the internet.

SG500 - DHCP server does not assign predefined static IP addresses to hosts

hi guys
I upgraded my SG500 switch firmware to 1.3.0.59, since there is a new functionality DHCP server v.4
well I must say I came accross the issue I cannot solve. DHCP server assign dynamic address - no hassles.
troubles start with static IP hosts.
I defined a couple of hosts with static address within the correct subnet. I tried with hardware address and client identifiers. no luck. my switch does not assign the IP address I assigned to the suitable mac address. to define it I use both CLI & Web.
no of them works. any idea ?
below the cut from my config:
ip dhcp pool host HP-Ellite
address 10.10.11.7 255.255.255.0 client-identifier 01:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
ip dhcp pool host VAIO-Z
address 10.10.14.108 255.255.255.0 hardware-address 54:53:ed:1c:a1:46
default-router 10.10.14.1
exit

Tom, thnkas for a quick reply...
look, usually it is pretty easy to manage an issue with so precise instructions. but this particular time it is not.
as I understood the "dhcp option 61" is nothing more than "00" which go before pure hardware address.
so, coming back to my example from the first post
with this configuration, my switch assigns 169.254.110.130 255.255.0.0 address
ip dhcp pool host HP-Ellite
address 10.10.11.112 255.255.255.0 client-identifier 01:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
with that configuration, my switch assigns 10.10.11.11 255.255.255.0 address
ip dhcp pool host HP-Ellite
address 10.10.11.112 255.255.255.0 client-identifier 00:d8:d3:85:cf:09:72
client-name HP-Ellite
default-router 10.10.11.1
exit
otherwords "00" does not work as explained (unless I misunderstood the meaing of dhcp option 61). my switch assigns first available dynamic IP address. atlhough the arp table is cleared, dynamic address table is cleared as well. swtich is rebooted, host is rebooted
once I change hardware address prefix to "01", my host asign itself 169.xxx.xxx.xxx adress.

%SW_DAI-4-DHCP_SNOOPING_DENY after dhcp server migration

Hello,
Some weeks ago, we migrated our DHCP server (from windows 2003 to windows 2012 with the new failover features in active/passive mode).
On our switches ; we have both arp inspection & dhcp snooping enabled. Since the migration, arp inspection is not working correctly : as soon as i activate the arp inspection on our client vlan (96) ; we get errors like : "Sep 1 11:50:39: %SW_DAI-4-DHCP_SNOOPING_DENY: 1 Invalid ARPs (Req) on Fa0/29, vlan 96.([d4c9.efdf.710e/10.0.96.89/0000.0c07.ac60/10.0.127.254/11:50:39 GMT+1 Mon Sep 1 2014])
Sep 1 11:50:40: %SW_DAI-4-DHCP_SNOOPING_DENY: 2 Invalid ARPs (Req) on Fa0/7, vlan 96.([d485.64b4.0068/10.0.97.214/0000.0000.0000/10.0.127.254/11:50:40 GMT+1 Mon Sep 1 2014])
If i have a look on the dhcp snooping binding table on the same switch :
NUKUH052#sh ip dhcp snooping binding
MacAddress IpAddress Lease(sec) Type VLAN Interface
18:A9:05:F5:28:2B 10.0.97.101 418236 dhcp-snooping 96 FastEthernet0/40
6C:3B:E5:0D:B3:B2 10.0.96.184 2936 dhcp-snooping 96 FastEthernet0/36
10:60:4B:7C:A3:14 10.0.97.17 678739 dhcp-snooping 96 FastEthernet0/42
00:1F:29:02:AA:6B 10.0.98.53 678938 dhcp-snooping 96 FastEthernet0/37
88:51:FB:80:1B:E1 10.0.97.252 680212 dhcp-snooping 96 FastEthernet0/3
64:31:50:A3:F8:52 10.0.96.96 341484 dhcp-snooping 96 FastEthernet0/20
64:31:50:A3:D7:5A 10.0.97.209 677205 dhcp-snooping 96 FastEthernet0/6
6C:3B:E5:1A:8D:05 10.0.96.255 677165 dhcp-snooping 96 FastEthernet0/8
00:1F:29:02:AA:EF 10.0.96.207 678365 dhcp-snooping 96 FastEthernet0/1
00:23:7D:2F:72:E7 10.0.98.152 680376 dhcp-snooping 96 FastEthernet0/16
Total number of bindings: 10
Strange, interface FastEthernet0/7 is not in the table !!! and that s the same case for a lot of computers. (of course it s dhcp and not static ip address).
Extract of the switch configuration :
Standard port configuration
interface FastEthernet0/7
switchport access vlan 96
switchport mode access
switchport nonegotiate
switchport voice vlan 192
switchport port-security maximum 3
switchport port-security
switchport port-security aging time 1
switchport port-security violation restrict
ip arp inspection limit rate 256 burst interval 10
no logging event link-status
mls qos trust dscp
no snmp trap link-status
storm-control broadcast level bps 1m
storm-control multicast level bps 1m
storm-control action shutdown
spanning-tree portfast
spanning-tree bpduguard enable
General switch settings
ip dhcp snooping vlan 96
ip dhcp snooping information option allow-untrusted
no ip dhcp snooping information option
ip dhcp snooping
>> ip arp inspection vlan 96 : as soon as i had this command i have the error messages.
I already :
* tested several software version
* only enabled a single dhcp server in the helper address
But i don't find the issue... the problem came when we started up the 2 new dhcp server (with the new 2012 dhcp failover feature). We have the same issue on all the switches of this LAN (the same config is running fine on the other factory we own).
Can you help me to solve that issue ?

Hi,
I just attached the file containing the filtered caps ; taken simultaneously on both dhcp servers. As we are using HSRP ; it looks like the dhcp messages are not doubled, but quadruplet.
Below the HSRP configuration on one of our both core switches :
interface Vlan96
ip address 10.0.127.252 255.255.224.0
ip helper-address 10.0.9.33
ip helper-address 10.0.9.32
no ip redirects
standby 96 ip 10.0.127.254
standby 96 timers 1 4
standby 96 priority 80
standby 96 preempt
arp timeout 720
And i also discovered that there are some microsoft bugs related to dhcp failover. Links here :
http://blogs.technet.com/b/teamdhcp/archive/2014/02/26/dhcp-failover-patch-to-address-a-reservation-issue-and-another-issue-related-to-failover-partner-not-accepting-state-transition-from-bad-address-gt-active-has-been-released.aspx
and
http://support.microsoft.com/kb/2831920
And the active dhcp windows server has not been updated since january 2013.... (so the update are not applied). I ll discuss with my colleague in charge of server to update it asap...

AP gets always a new IP address from DHCP server

Hello,
When an access points doesn't find a controller it gets always a new IP address from DHCP server.
Does anyone know, why?
thanks

Hi,
From what I know this is to do with DHCP option 60 and 43.Normally when APs request for IP address, DHCP Server also returns the management IP Address of WLC if the VCI matches.
If the VCI sent by the AP does not match with the one configured under DHCP for that particulart AP type, the DHCP will never return the WLC IP and hence AP can not find the controller.And the AP keeps sending DHCP Req and sometimes end up getting two IP addresses!
So may be you can check VCI on DHCP server for that AP model.
Let me know.
Cheers

Ipad DHCP Server Options

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