05-18-2006 02:31 PM - edited 03-03-2019 03:16 AM
I'm having difficulties getting DHCP working on a Cisco 871 Router. Clients on either FE0 or Wireless don't receive an address at all. I have a pool setup on a BVI, with helper-addresses set up on the relevant interfaces, but still nothing. I feel like I'm probably missing something simple, but I can't figure out what. Below are what I believe to be the relevant portions of the config, Let me know if I'm missing something.
Thanks!
no ip dhcp use vrf connected
ip dhcp excluded-address 192.168.100.1 192.168.100.99
ip dhcp excluded-address 192.168.100.201 192.168.100.254
!
ip dhcp pool ROCK0
import all
network 192.168.100.0 255.255.255.0
dns-server 192.9.1.1
default-router 192.168.100.1
domain-name company.com
...
interface FastEthernet0
no cdp enable
...
interface Dot11Radio0
no ip address
ip helper-address 192.168.100.1
!
encryption vlan 1 mode wep mandatory
!
ssid <removed>
vlan 1
authentication open eap eap_methods
authentication network-eap eap_methods
!
speed basic-1.0 basic-2.0 basic-5.5 6.0 9.0 basic-11.0 12.0 18.0 24.0 36.0 48.0 54.0
station-role root
no dot11 extension aironet
no cdp enable
!
interface Dot11Radio0.1
encapsulation dot1Q 1 native
ip helper-address 192.168.100.1
no snmp trap link-status
no cdp enable
bridge-group 1
bridge-group 1 subscriber-loop-control
bridge-group 1 spanning-disabled
bridge-group 1 block-unknown-source
no bridge-group 1 source-learning
no bridge-group 1 unicast-flooding
!
interface Vlan1
description $ETH-SW-LAUNCH$$INTF-INFO-HWIC 4ESW$$FW_INSIDE$
no ip address
ip helper-address 192.168.100.1
ip tcp adjust-mss 1452
bridge-group 1
!
interface BVI1
description $ES_LAN$$FW_INSIDE$
ip address 192.168.100.1 255.255.255.0
ip access-group 100 in
ip nat inside
ip virtual-reassembly
ip tcp adjust-mss 1452
05-18-2006 05:26 PM
You don't need IP Helper statements...
Add the following..
bridge irb
bridge 1 route ip
One more thing you really don't need the import all
on your dhcp pool. This will import all the setting that the ISP provides when your FA4 interface receives an address. Your already specifing a DNS and DomainName...
05-24-2006 01:23 PM
05-31-2006 05:30 PM
For testing remove the access list from BVI 1 and make int VLAN 1 look like this.
interface Vlan1
no ip address
no ip redirects
no ip proxy-arp
bridge-group 1
bridge-group 1 spanning-disable
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