From: Winston V. Shaw (wvshaw@bellsouth.net)
Date: Wed Feb 11 2004 - 11:34:10 GMT-3
Hello Brian,
Is this a real scenario that you have set up at home ? It is interesting.
I think the host(66.169....) will not trust any redirection it receives from R1. This is because its configured gateway is on a different net to the source of the redirection (66.166.....). It will discard those packets and keep spinning its wheels trying to reach the 204 net
Let us know what your test shows.
WVShaw
CCIE#7991
>
> From: Brian Feeny <signal@shreve.net>
> Date: 2004/02/10 Tue PM 02:23:45 EST
> To: ccielab@groupstudy.com
> Subject: secondary address problem challenge
>
> R1
> ---------------
> interface FastEthernet0/0
> ip address 65.166.193.4 255.255.255.0 secondary
> ip address 65.169.9.129 255.255.255.128
> duplex auto
> speed auto
> standby 1 ip 65.166.193.1
> standby 1 priority 105
> standby 1 preempt
> standby 1 track Serial0/0
>
>
> R2
> ----------------
> interface FastEthernet0/0
> description To LAN
> ip address 65.166.193.5 255.255.255.0
> no ip redirects
> duplex auto
> speed auto
> standby 1 ip 65.166.193.1
> standby 1 priority 100
> standby 1 preempt
>
>
> Ok, Host 65.169.9.130 wishes to send traffic to 204.127.128.1.
> 65.169.9.130 has 65.169.9.129 as its gateway.
>
> R1 has a iBGP session to R2 and sees this:
>
> B 204.127.128.0/17 [200/0] via 65.166.193.5, 03:12:02
>
> Host 65.169.9.130 CANNOT reach its desired destination 204.127.128.1.
>
> Hosts on 65.166.193.0/24 can get out to 204.127.128.1 just fine
> using .1, .4, or .5 as gateways.
>
> The problem is related to outgoing packets. Assume incoming is fine
> (route 65.169.9.128/25 is being announced fine).
>
>
> Anyone got the answer?
>
> ----------------------------------------------------------------------
> Brian Feeny, CCIE #8036 e: signal@shreve.net
> Network Engineer p: 318.213.4709
> ShreveNet Inc. f: 318.221.6612
>
> _______________________________________________________________________
> Please help support GroupStudy by purchasing your study materials from:
> http://shop.groupstudy.com
>
> Subscription information may be found at:
> http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Mar 05 2004 - 07:13:48 GMT-3