Trouble getting IP address from DHCP-enabled router
I've recently set up a LinkSys WRT54G wired/wireless router on a home network that has a wired Windows XP machine and a wireless PowerBook with AirPort.
The WRT54G assigns network addresses using DHCP. The PowerBook is able to find the wireless network established by the WRT54G, but doesn't get an IP address from it.
The router seems to be behaving correctly, so I'm guessing there's a problem in the PowerBook setup somewhere. Any ideas?
Double-check your AirPort's settings:
System Preferences > Network > Show > Network Port Configurations
- Verify that an AirPort option exists. If it does not, click "New" to create one. (Note: If you are unable to create an AirPort configuration, the AirPort card in your computer either doesn't exist or it is not recognized.)
- Verify that AirPort is "On" (checked)
- Verify that AirPort is at the top of the list. If it isn't, you can drag it to the top.
Systems Preferences > Network > Show > AirPort
AirPort tab
- By default, join: Automatic
TCP/IP tab
- Configure IPv4: Using DHCP
- Configure IPv6: Automatically or Off
Proxies tab
- Configure Proxies: Manually
- Select a proxy server to configure: <All proxies should be unchecked unless you specifically require a proxy for Internet access.>
- Exclude simple hostnames (unchecked)
- Bypass proxy settings for these Hosts & Domains: <leave blank>
- Use Passive FTP Mode (PASV) (checked)
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Router connected to cable modem by Ethernet port cannot get IP address from DHCP.
I have an ethernet cable on Fa0/0 connecting my 1841 router to my cable modem. The issue is that the router cannot obtain an IP address via DHCP when I have the "ACL-OUTSIDE-IN" ACL applied inbound on the Fa0/0 interface. I tried to allow all BOOTP and BOOTPS traffic in my ACL, but still no luck. I really don't want to run the router without a simple ACL firewall and connect it to the internet. When I take off the ACL off of Fa0/0, the router is able to get an IP address via DHCP.
Router#sh run
Building configuration...
Current configuration : 10736 bytes
! Last configuration change at 18:14:42 MST Fri Nov 16 2012 by matt.chan
version 12.4
service nagle
service timestamps debug datetime msec localtime show-timezone year
service timestamps log datetime msec localtime show-timezone year
service password-encryption
hostname Router
boot-start-marker
boot system flash:c1841-advipservicesk9-mz.124-25f.bin
boot-end-marker
logging count
logging userinfo
logging buffered 1048576 informational
enable secret 5 <removed>
aaa new-model
aaa authentication login AUTH-LOCAL local-case
aaa session-id unique
memory-size iomem 25
clock timezone MST -7
ip cef
ip nbar pdlm flash:directconnect.pdlm
ip nbar pdlm flash:citrix.pdlm
ip nbar pdlm flash:bittorrent.pdlm
ip nbar custom steam destination udp range 27000 27030
ip nbar custom rdp destination tcp range 3389 3391 55402
ip domain lookup source-interface FastEthernet0/0
ip name-server 8.8.8.8
ip inspect name fa0/0_inspect_ou icmp router-traffic timeout 10
ip inspect name fa0/0_inspect_ou ftp timeout 300
ip inspect name fa0/0_inspect_ou udp router-traffic timeout 120
ip inspect name fa0/0_inspect_ou tcp router-traffic timeout 300
login block-for 60 attempts 4 within 60
login quiet-mode access-class ACL-ACCESS-QUIET
password encryption aes
crypto pki trustpoint TP-self-signed-1755372391
enrollment selfsigned
subject-name cn=IOS-Self-Signed-Certificate-1755372391
revocation-check none
rsakeypair TP-self-signed-1755372391
crypto pki certificate chain TP-self-signed-1755372391
certificate self-signed 01
3082023F 308201A8 A0030201 02020101 300D0609 2A864886 F70D0101 04050030
31312F30 2D060355 04031326 494F532D 53656C66 2D536967 6E65642D 43657274
69666963 6174652D 31373535 33373233 3931301E 170D3132 31313137 30313130
35325A17 0D323030 31303130 30303030 305A3031 312F302D 06035504 03132649
4F532D53 656C662D 5369676E 65642D43 65727469 66696361 74652D31 37353533
37323339 3130819F 300D0609 2A864886 F70D0101 01050003 818D0030 81890281
8100D53F 9EB5B123 3103A4D5 82E786F7 F91C2DE5 9E409A22 80AF78F6 812F624A
89FE9103 73C4AAAB 13FF880D F628607D 6888AC49 18BEDD77 778F0DB1 F9A796E9
E92717CD 6DD19450 5066620A 91278C33 E38349EA 92B8C671 80761609 0AC46E6F
2C8C6BCF ABC7E1F7 A64BD28C C85477FE B23F8A7C 555ECDF9 CE461B8D 6C017370
0ED70203 010001A3 67306530 0F060355 1D130101 FF040530 030101FF 30120603
551D1104 0B300982 074E5543 4C455553 301F0603 551D2304 18301680 146CA2E0
936C651F E2ED4DCD D7025FF3 2AB029E0 95301D06 03551D0E 04160414 6CA2E093
6C651FE2 ED4DCDD7 025FF32A B029E095 300D0609 2A864886 F70D0101 04050003
8181004A AFA4D07C 1424DE0E EF3F17F2 BB1EA63B CB17C13D 1AEA31A1 BAB6AF77
DB6EA8A2 2117DCD1 5530A18C 3618D568 CC7EF520 E039ACBD DA906352 BB7E51BD
0954490C B2AB30C2 FBBE4738 C214BE1C CB63FFEA BAFC46E0 3DC419EE 714B9ABD
144A21E3 3E54C103 FF47FAF1 412FE5C4 59ACD1FE FD72356B C8DC04C3 E2EDF275 45954C
quit
username <removed secret 5 <removed>
ip ssh maxstartups 10
ip ssh time-out 60
ip ssh authentication-retries 2
ip ssh port 2226 rotary 1
ip ssh version 2
class-map match-all Zuri-YouTube-Class
match access-group name NAT-Pool-Zuri-WLAN
match protocol http host "*youtube.com*"
policy-map PMAP-QOS-VTI-IN
description QOS FOR TU0
class class-default
shape peak 1512000
policy-map PMAP-QOS-VTI-OUT
description QOS FOR TU0
class class-default
shape peak 512000
crypto isakmp policy 1
encr aes 256
authentication pre-share
group 5
lifetime 43200
crypto isakmp key 6 <removed> address <removed>
crypto isakmp invalid-spi-recovery
crypto isakmp keepalive 10 5 periodic
crypto ipsec transform-set EDGE-TS ah-sha-hmac esp-aes 256
crypto ipsec profile EDGE
set security-association lifetime kilobytes 256000
set transform-set EDGE-TS
set pfs group5
interface Loopback0
no ip address
interface Tunnel0
description "VTI Link"
bandwidth 4000
ip address 172.20.0.2 255.255.255.0
ip mtu 1400
ip nbar protocol-discovery
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1360
ip ospf authentication message-digest
ip ospf message-digest-key 1 md5 7 12090011003E5A0C0F186E752220211B4A
keepalive 10 5
tunnel source FastEthernet0/0
tunnel destination <removed>
tunnel mode ipsec ipv4
tunnel path-mtu-discovery
tunnel protection ipsec profile EDGE
service-policy output PMAP-QOS-VTI-OUT
hold-queue 75 out
interface FastEthernet0/0
description "Link to ISP"
bandwidth 4000
ip address dhcp
ip access-group ACL-OUTSIDE-IN in
no ip proxy-arp
ip nbar protocol-discovery
ip nat outside
ip inspect fa0/0_inspect_ou out
ip virtual-reassembly
ip ospf cost 1
duplex auto
speed auto
no keepalive
no cdp enable
interface FastEthernet0/1
description "Link to LAN"
ip address 172.16.0.1 255.255.255.248
ip access-group ACL-INSIDE-IN in
no ip proxy-arp
ip nbar protocol-discovery
ip nat inside
ip virtual-reassembly
ip ospf cost 1
ip ospf priority 255
duplex auto
speed auto
no keepalive
router ospf 1
log-adjacency-changes
redistribute static subnets
passive-interface default
no passive-interface Tunnel0
network 172.20.0.0 0.0.0.3 area 0
ip forward-protocol nd
ip route 10.0.0.0 255.0.0.0 Null0 name "Class A Private"
ip route 172.16.0.0 255.240.0.0 Null0 name "Class B Private"
ip route 172.17.0.0 255.255.0.0 FastEthernet0/1 172.16.0.2 name "Home WLAN"
ip route 172.19.73.31 255.255.255.255 Null0
ip route 172.27.0.0 255.255.0.0 Tunnel0 172.20.0.1 name "IPsec GRE Tunnel"
ip route 192.168.0.0 255.255.0.0 Null0 name "Class C Private"
ip route 192.168.0.0 255.255.255.0 Tunnel0 172.20.0.1 name "VLAN 70"
ip route 192.168.100.1 255.255.255.255 FastEthernet0/0 70.162.0.1 permanent name "CABLE MODEM MANAGEMENT"
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ip http authentication local
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ip http timeout-policy idle 60 life 86400 requests 10000
ip nat translation tcp-timeout 300
ip nat translation udp-timeout 120
ip nat translation max-entries 2048
ip nat inside source list ACL-NAT-172.16.0.0/29 interface FastEthernet0/0 overload
ip nat inside source list ACL-NAT-MANAGEMENT interface FastEthernet0/0 overload
ip nat inside source static tcp 172.16.0.4 22 interface FastEthernet0/0 2227
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ip nat inside source static tcp 172.16.0.3 3389 interface FastEthernet0/0 3390
ip nat inside source static tcp 172.16.0.4 80 interface FastEthernet0/0 8084
ip access-list standard ACL-ACCESS-QUIET
permit 216.161.180.16
permit 172.16.0.0 0.1.255.255
permit 172.27.0.0 0.0.127.255
permit 172.20.0.0 0.0.0.3
ip access-list standard ACL-NAT-172.16.0.0/29
permit 172.16.0.0 0.0.0.7
ip access-list standard ACL-NAT-172.17.0.0/24
permit 172.17.0.0 0.0.0.255
ip access-list standard ACL-NAT-172.17.1.0/24
permit 172.17.1.0 0.0.0.255
ip access-list standard ACL-SNMP
permit 172.16.0.4
ip access-list extended ACL-CRY-MAP
ip access-list extended ACL-INSIDE-IN
deny ip host 172.16.0.2 172.27.0.0 0.0.127.255
deny ip host 172.16.0.2 172.20.0.0 0.0.0.3
permit ip 172.17.0.0 0.0.0.255 any
permit ip 172.16.0.0 0.0.0.7 any
permit ip 172.17.1.0 0.0.0.255 any
ip access-list extended ACL-NAT-MANAGEMENT
permit tcp host 172.27.10.11 eq 3389 host 72.166.77.196
ip access-list extended ACL-OUTSIDE-IN
deny ip 10.0.0.0 0.255.255.255 any
deny ip 172.16.0.0 0.15.255.255 any
deny ip 192.168.0.0 0.0.255.255 any
permit tcp any any range 3390 3391
permit udp any any eq bootpc
permit udp any any eq bootps
permit tcp any any range 2226 2228
permit tcp any any range 8081 8084
permit icmp any any echo
permit icmp any any net-unreachable
permit icmp any any host-unreachable
permit icmp any any port-unreachable
permit icmp any any parameter-problem
permit icmp any any packet-too-big
permit icmp any any administratively-prohibited
permit icmp any any source-quench
permit icmp any any ttl-exceeded
deny icmp any any
deny ip any any
ip access-list log-update threshold 10
logging history informational
logging trap debugging
logging 172.17.228.17
logging 172.17.228.10
control-plane
line con 0
exec-timeout 15 0
privilege level 15
logging synchronous
login authentication AUTH-LOCAL
line aux 0
login authentication AUTH-LOCAL
line vty 0 4
exec-timeout 60 0
privilege level 15
logging synchronous
login authentication AUTH-LOCAL
rotary 1
transport input ssh
scheduler allocate 20000 1000
ntp clock-period 17178311
ntp source FastEthernet0/0
ntp server 148.167.132.201
endHi Matt,
Try adding below line
ip access-list extended ACL-OUTSIDE-IN
permit udp any eq bootpc any eq bootps
Regards
Najaf
Please rate when applicable or helpful !!! -
Wireless Router 877W users cannot get ip address from DHCP
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I have a network in which DHCP server is enabled. I have read the installation guide also there it is mentioned that 1130G Access point will not have any staic ip assigned to it.So it will automatically get the ip from the DHCP server from the network. I have connected that from the network but it is unable to get the ip address from the same. The same thing i have configured in the netgear it is coming fine. I have seen the sonic wall and used the IPSU tool also from checking the ip address from Mac Address but i am not able to get the same. Please provide me some tips to check where i am wrong in configuration because the first web page also not coming because of the ip address.
narendra,
I would suggest that the AP be connected to a laptop or desktop pc that would run a local dhcp server with a small scope setup...plenty of free ones on the web(this pc would obviously not be connected to your currnet network). This way you can watch the dhcp server hand the AP it's address (this can take a few minutes). Once you have the address use it to access the GUI and give the AP a static address (I find it good pratice to give all my autonomous AP's static addresses for ease of troubleshooting)...Hope that helps. -
Unable to get IP address from DHCP
hi all,
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*Mar 7 08:44:36.511: RESETTING THE STATIC IP ADDRESS: LWAPP goes back to discovery
%WIDS-6-DISABLED: IDS Signature is removed and disabled.
%LWAPP-5-CHANGED: LWAPP changed state to DISCOVERY
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%LINK-3-UPDOWN: Interface Dot11Radio1, changed state to up
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%LINK-5-CHANGED: Interface Dot11Radio0, changed state to reset
%LWAPP-3-CLIENTERRORLOG: Config Command: error verifying sequence number
%LWAPP-3-CLIENTERRORLOG: Config Command: error verifying sequence number
%LWAPP-3-CLIENTERRORLOG: Config Command: error verifying sequence number
%LWAPP-3-CLIENTERRORLOG: Config Command: error verifying sequence number
%LWAPP-3-CLIENTERRORLOG: Config Command: error verifying sequence number
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Jul 26 01:32:27 Lightning.local configd[22]: bootp_session: bind port 68 failed, No route to host
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ThanksI am also having this problem since I upgraded to Mountain Lion. I did an upgrade from Lion, not a clean install. I had done a clean install of Lion though. In my case, the network connection is working most of the time, but it is droping one a day. Deactivating the Ethernet and the Wi-Fi adapters and reactivating them does not help.
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2012-08-30 6:13:59.158 PM configd[17]: bootp_session: bind port 68 failed, No route to host
2012-08-30 6:13:59.158 PM configd[17]: bootp_client_open_socket: S_get_bootp_socket() failed, No route to host
2012-08-30 6:13:59.158 PM configd[17]: bootp_client_enable_receive(en0): failed
2012-08-30 6:14:00.158 PM configd[17]: bootp_session_delayed_close(): socket is already closed
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I hope Apple will have a fix for this soon!
Cheers!
JF -
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Of course I don't like hearing it. I am here to hopefully find someone else with the same issue or get some tips that lead to a solution so the next google searcher will land on a solution. -
2611XM refuses to grab a DHCP address from an upper router.
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cable modem>dlink router>cisco2611XM>dumbSwitch>Computer#3
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config
secureROUTER#sh run
Building configuration...
Current configuration : 1031 bytes
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
hostname secureROUTER
boot-start-marker
boot-end-marker
enable secret 5 $1$fq4Z$ty8gmQfFw6v0sM2O0rW2D1
no network-clock-participate slot 1
no network-clock-participate wic 0
no aaa new-model
ip subnet-zero
ip cef
no ip domain lookup
interface FastEthernet0/0
description LAN
ip address 10.0.0.1 255.255.255.0
ip nat inside
duplex auto
speed auto
no cdp enable
interface FastEthernet0/1
description WAN
ip address dhcp
ip nat outside
no ip route-cache cef
no ip route-cache
duplex auto
speed auto
no cdp enable
ip nat inside source list 1 interface FastEthernet0/0 overload
no ip http server
ip classless
ip route 0.0.0.0 0.0.0.0 FastEthernet0/1
access-list 1 permit 10.0.0.0 0.0.0.255
no cdp run
banner motd ^CGet the fuck out!!^C
line con 0
line aux 0
line vty 0 4
password 7 111B1F5244000D
logging synchronous
login
endDuplicate post.
Go HERE. -
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?
thanksHi,
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This article for Cascading routers may help. Check the steps for cascading routers via LAN to LAN. -
Need powershell commands to get email addresses from public folder created in EAC to CSV
Need powershell commands to get email addresses from public folder created in EAC to CSV
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Now I need a powershell command to get those email contacts in those public folders.
I need to view them because when we send emails to those groups (via select all) in the public folders, it is creating an NDR for 3 users saying - "..blah blah -OFFICE FAX or HOME FAX) - yet they are getting the emails.
I suspect that their contact details are corrupt somehow and want to see what contacts are actually listed in the public folders. I already checked to see if the source of the contacts was the public folder or "my contacts" and they are not.'
I have tried multiple get recipient commands and get public folder commands with no results in the CSVThe only way to get that data is either via the Outlook com object or using EWS. None of the commands in the Exchange shell look inside of a folder, the most you can get with those is email addresses for mail-enabled Public folders. Here is a link that can
get you started with how to connect to public folders via EWS, then its just enumerating the folders and looping through the items in the folders for the details of the items.
http://gsexdev.blogspot.com/2013/08/public-folder-ews-how-to-rollup-part-1.html
DJ Grijalva | MCITP: EMA 2007/2010 SPA 2010 | www.persistentcerebro.com -
How can I get the address from a map struct?
Hello,
Who knows how to get the address from a map struct, and what's the meaning of the eighth argument (addr) of ufs_getpage() ?
I developed a modular to encrypt certain files. The approach is: I�fll change the vnode's v_op pointer when opening a file which should be decoded. I make the vnode->v_op point to my own ops struct. I made a new ufs_getpage function like below:
static int newufs_getpage(struct vnode* vp, offset_t off, size_t len,
uint_t* protp, page_t* plarr[], size_t plsz,
struct seg* seg, caddr_t addr, enum seg_rw rw,
struct cred* cr)
call old ufs_getpage(vp, off, len, protp, plarr, plsz, seg, addr, rw, cr);
decode the page.
After reading some source code about kernel, I know the plarr is the page which is read from the disk. But I don't know how to get the address of the page. I tried like below, but failed.
caddr_t baseaddr;
page_t *pp;
pp = plarr[0];
�c�c
baseaddr = hat_kpm_page2va(pp, 0);
�c�c
I logged the baseaddr:
cmn_err(CE_NOTE, �gbaseaddr %s�h, baseaddr);
or
char _buff[8];
int _len;
copyinstr(baseaddr, buff, 8, &len);
cmn_err(CE_NOTE, �gbaseaddr %s�h, _buff);
But I found the baseaddr is not what I want. Is there something wrong with my approach? What's the meaning of the eighth argument (addr) of ufs_getpage()
By the way, is there any documents concerning to the functions such as segvn_fault�Appmapin/ppmapout except the source code?Hiya,
I think the address is the faulting address in segmap.
But why not have a look at the file event management framework in NFSv4:
http://cvs.opensolaris.org/source/xref/on/usr/src/uts/common/fs/fem.c
To support NFSv4 delegation, FEM provides hooks to intercept filesystem operations.
Maybe you could use that to implement what you want? Probably safer than doing what you are doing now. Go see fem_install().
Cheers,
R.
Message was edited by:
ralphyt -
How to get MAC address from IP address in LAN
Hi all,
How to get MAC address from IP address in LAN (windows or any OS), I would have all IP addresses of my LAN, so I would like to know all MAC address.
Code examples are highly appreciated.
Thanks & Regards,
abel...abel wrote:
Yeah that is only working for local system, but how to get remote system's MAC ..?
Thanks for quick reply ...
Edited by: abel on Jan 28, 2009 12:10 AMIt is my understanding that only one person ever found the holy grail which you seek. But sadly [_he's dead_|http://forums.sun.com/profile.jspa?userID=649366]
As a curious aside how did you manage to get the list of IPs? -
How to get IP address from login screen in 10.7 Lion
Hi All,
In 10.7 I didn't find any option to get IP address from login screen as used to got in 10.4,10.5,10.6
ThanksJason,
is there any way to make that example
work with release 6.0, preverribly
with IE5 (native VM)?
The WHEN-CUSTOM-ITEM-EVENT Trigger
doesn't seem to fire.
Thanks
Anton Weindl
<BLOCKQUOTE><font size="1" face="Verdana, Arial">quote:</font><HR>Originally posted by Jason Pepper ([email protected]):
If you are using web deployed forms then you need to use a javabean to obtain the IP of the local machine - you can get one that does it here..
http://technet.oracle.com/sample_code/products/forms/listing.htm#pjcexamp
If you are running client server then there is a utility in d2kwutil.pll that allows you to read the registry and do things like get the IP address. d2kwutil is shipped with your copy of Forms - just have a look for it - the code is self documenting, but there is also a manual you can read too.
Jason Pepper
Principal Product Manager
Enterprise Internet Tools
Oracle Corp<HR></BLOCKQUOTE>
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