[c-nsp] Problem with IP Helper (DHCP) on 1811 (Bruce Pinsky)

[Collins, Richard (Com US)]

Are you sure that your Linux box has a route back to Vlan 200 ip address
x.x.232.1 255.255.254.0?

-Rich

>Skeeve Stevens wrote:
>> Hey guys.
>> 
>> Got a DHCP Problem
>> 
>> 1. Discover comes into 1811
>> 
>> *Aug 24 15:01:11.919: DHCPD: Sending notification of DISCOVER:
>> *Aug 24 15:01:11.919:   DHCPD: htype 1 chaddr 0004.e245.f1a1
>> *Aug 24 15:01:11.919:   DHCPD: remote id 020a0000d238e801060000c8
>> *Aug 24 15:01:11.919:   DHCPD: circuit id 00000000
>> 
>> 2. Linux box gets it, and makes an offer
>> 
>> Aug 25 01:01:30 newton dhcpd: DHCPDISCOVER from 00:04:e2:45:f1:a1 via
>> x.x.232.1
>> Aug 25 01:01:30 newton dhcpd: DHCPOFFER on x.x.232.50 to
00:04:e2:45:f1:a1
>> via x.x.232.1
>> 
>> And.. That's it.  Cisco 1811 doesn't see the offer and relay it back
to the
>> DHCP client.
>> 
>> Just keeps trying over and over and over again.
>> 
>> Cisco config..
>> 
>> version 12.4
>> ip dhcp relay information option
>> ip dhcp relay information policy keep
>> ip dhcp relay information trust-all
>> interface Vlan200
>>  ip address x.x.232.1 255.255.254.0
>>  ip helper-address x.x.224.130
>> 
>> Anything I am missing?
>> 
>> Debugging not showing anything else but the DISCOVERS..
>> 
>> 1811#show debugging 
>> DHCP server event debugging is on.
>> DHCP server linkage debugging is on.
>> DHCP server class debugging is on.
>> 
>> Thanks all to those who help.. And for helping previously with my
initial
>> email last week.
>> 
>
>Basic DHCP relay agent functionality is enabled via the helper address
>command.  Is there a reason you need the "ip dhcp relay information"
commands?
>
>- --
>=========
>bep
>