From: ISolveSystems (support@isolvesystems.com)
Date: Thu Aug 23 2007 - 18:57:24 ART
It doesn't take "ip address dhcp" since this is a PPP interface.
I did a debug ip packet detail on R1 and confirm that the DHCP request
reaches R1.
*Aug 23 22:13:12.205: IP: s=139.1.45.5 (Serial0/0/0),
d=139.1.15.1(Serial0/0/0), len 604, rcvd 3
*Aug 23 22:13:12.205: UDP src=68, dst=67
*Aug 23 22:13:12.205: IP: tableid=0, s=139.1.15.1 (local),
d=139.1.45.5(Serial0/0/0), routed via FIB
*Aug 23 22:13:12.205: IP: s=139.1.15.1 (local), d=139.1.45.5 (Serial0/0/0),
len 328, sending
*Aug 23 22:13:12.205: UDP src=67, dst=67
On 8/23/07, Brian Dennis <bdennis@internetworkexpert.com> wrote:
>
> Change R4 to "ip address dhcp" and see if that makes a difference.
>
> Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP)
> bdennis@internetworkexpert.com
>
> Internetwork Expert, Inc.
> http://www.InternetworkExpert.com
> Toll Free: 877-224-8987
> Direct: 775-745-6404 (Outside the US and Canada)
>
>
> >----- Original Message -----
> Subject: peer default ip address dhcp
> Date: Thu, August 23, 2007 14:29
> From: "ISolveSystems" <support@isolvesystems.com>
>
> > R4 is connect to R5 via ppp and R5 is connected to R1 via ppp.
> >
> > R4----ppp----R5-----fr-----R1
> >
> > R4 is configured to obtain ip address from R1 via PPP negotiation. For
> some
> > reason, R4 is not getting the IP.
> >
> > Debug ppp neg on R4 shows:-(partial output)
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: Timeout: State ACKsent
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: O CONFREQ [ACKsent] id 3 len 10
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: Address 0.0.0.0 (0x030600000000)
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: I CONFREQ [ACKsent] id 3 len 10
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: Address 139.1.45.5(0x03068B012D05)
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: O CONFACK [ACKsent] id 3 len 10
> > *Aug 23 21:47:39.217: Se0/1/0 IPCP: Address 139.1.45.5(0x03068B012D05)
> > *Aug 23 21:47:39.297: Se0/1/0 IPCP: I CONFREJ [ACKsent] id 1 len 10
> > *Aug 23 21:47:39.297: Se0/1/0 IPCP: Address 0.0.0.0 (0x030600000000)
> > Rack1R4(config-if)#
> > *Aug 23 21:47:39.297: Se0/1/0 IPCP: ID 1 didn't match 3, discarding
> packet
> > Rack1R4(config-if)#
> > *Aug 23 21:47:41.233: Se0/1/0 IPCP: Timeout: State ACKsent
> > *Aug 23 21:47:41.233: Se0/1/0 IPCP: O CONFREQ [ACKsent] id 4 len 10
> > *Aug 23 21:47:41.233: Se0/1/0 IPCP: Address 0.0.0.0 (0x030600000000)
> >
> > R1 has the following:-
> > ip dhcp pool R4
> > network 139.1.45.0 255.255.255.0
> > ip dhcp excluded-address 139.1.45.1 139.1.45.3
> > ip dhcp excluded-address 139.1.45.5 139.1.45.255
> >
> > R5 has the following:-
> > ip dhcp-server 139.1.15.1 --pointing to R1
> >
> > interface Serial0/1/0
> > ip address 139.1.45.5 255.255.255.0
> > ip rip advertise 3
> > encapsulation ppp
> > ip policy route-map FROM_VL43
> > peer default ip address dhcp
> > clock rate 2000000
> > end
> >
> > R4 has the follwoing:-
> > interface Serial0/1/0
> > ip address negotiated
> > ip rip advertise 3
> > encapsulation ppp
> > end
> >
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This archive was generated by hypermail 2.1.4 : Sat Sep 01 2007 - 11:32:12 ART