[nsp] stupid question

Joshua Smith joshua.ej.smith at usa.net
Wed Apr 2 18:26:57 EST 2003


ok, this seems to me to be a very stupid question, but it caused me
to take down part of my network today.  network looks like this:

192.168.2.0/24 lan--2600A---t1---2600B--10.0.0.0/8 lan--2924--10.75.1.50

i removed some bgp configs that my predecessor had been experimenting 
with, and i could no longer reach 10.75.1.50 in the 10/8 lan.  on 2600A, i
have these static routes
ip route 10.0.0.0 255.0.0.0 se0/0 10.1.7.2
ip route 0.0.0.0 0.0.0.0 fas0/0 192.168.5.253 (my firewall)

on the 2600B router, i have these routes
ip route 192.168.2.0 255.255.255.0 se0/0 10.1.7.1
ip route 0.0.0.0 0.0.0.0 se0/0 10.1.7.1

a traceroute during the 'outage' showed that 2600A was trying to dump
the packet out to the firewall, which obviously didn't know what to do
with it...

[ntranc3d at cr4sh ntranc3d]$ lft 10.75.1.50

Tracing ____________________________________________________________

TTL  LFT trace to 10.75.1.50:80/tcp
 1   192.168.2.1 2.2ms
 2   192.168.5.253 0.7ms
 3   192.168.5.254 1.7ms
 4   192.168.5.253 0.9ms
 5   192.168.5.254 1.6ms
 6   192.168.5.253 1.3ms
 7   192.168.5.254 4.3ms
 8   192.168.5.253 1.4ms
 9   192.168.5.254 70.8ms
10   192.168.5.253 1.7ms
[etc]

so here is my question - what am i missing?  shouldn't a route to 10/8 on 
2600A pointing to 2600B be enough?

thanks

2600B
router bgp 65010
 no synchronization
 bgp always-compare-med
 bgp log-neighbor-changes
 network 10.10.10.0 mask 255.255.255.0
 aggregate-address 10.0.0.0 255.0.0.0 as-set
 neighbor 10.1.7.1 remote-as 65030
 neighbor 10.1.7.1 description Ft. Lauderdale Office
 neighbor 10.1.7.1 weight 500
 neighbor 10.1.7.1 send-community
 neighbor 10.1.7.1 soft-reconfiguration inbound
!
 router eigrp 101
 network 10.0.0.0
 distance eigrp 1 1
 eigrp log-neighbor-changes


2600A
router eigrp 101
 passive-interface Serial0/0
 network 10.0.0.0
 network 192.168.2.0
 network 192.168.3.0
 network 0.0.0.0
 eigrp log-neighbor-changes
!
router bgp 65030
 bgp always-compare-med
 bgp dampening
 network 192.168.2.0
 neighbor 10.1.7.2 remote-as 65010
 neighbor 10.1.7.2 description New York
 neighbor 10.1.7.2 send-community
 neighbor 10.1.7.2 soft-reconfiguration inbound


"Walk with me through the Universe,
 And along the way see how all of us are Connected.
 Feast the eyes of your Soul,
 On the Love that abounds.
 In all places at once, seemingly endless,
 Like your own existence."
     - Stephen Hawking -




More information about the cisco-nsp mailing list