Make sure you have 'ip bootp server' configured (default), and not 'no ip
bootp server'. It will stop the ip helper-address from forwarding DHCP
requests if you have it disabled.
Use extended ping to ping from the LAN side of the router that is at the
site with DHCP problems.
'term mon' and 'debug ip dhcp server events' and 'debug ip dhcp server
events' (I think those are the right debugs, I can't seem to find any for ip
helper-address or bootp debug commands so I'm guessing that is it. Actually
I think the 'debug ip dhcp server *' stuff is for the local dhcp server that
could be configured on the router. You'll want 'debug ip udp' but be aware
that this will potentially generate a ton of debugs depending on normal
traffic. I just did it on my local VoIP network: Bad idea, hehee.
What's the fastest command to kill all debug on a router? I'm pretty sure
it's 'u all'
--
Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+
List email: [EMAIL PROTECTED]
Homepage: http://jason.artoo.net/
""robert alldread"" wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hey,
>
> I have read through the archives and found information close to what I am
> needing, but not exactly.
>
> Here is the question...
>
> I have (3) 3600 series routers connected by Frame-relay links. router#1
is
> the main, router#2 and router#3 hang off of the main in a hub and spoke
> config. I have a DHCP server behind router#1 that all subnets use for
> address's. I am running EIGRP.
>
> Router#2 and router#3 have "ip helper-address" statements for the DHCP
> server. Router#2 can ping the DHCP server and its own serial interface
and
> get DHCP addresses, but router#3 can't ping the DHCP server or its own
> serial interface, or get DHCP address's. Traffic passes fine, LMI is
> correct, and PVC's are setup correctly. Both Router#2 and Router#3 have
the
> exact same config(beside network numbers, ip address's, and DLCI's).
>
> What would cause a router not to be able to ping it own serial
interface???
> "show ip int s0" says (up,up) and LMI are increasing every 10 seconds..
>
> Please help....cisco TAC can't even solve this one...
>
> I am not a member of groupstudy (yet), so please respond to
> "[EMAIL PROTECTED]"
>
> Thank you guys!!
> FAQ, list archives, and subscription info:
http://www.groupstudy.com/list/cisco.html
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