[nsp] stupid question

Michael Loftis mloftis at wgops.com
Wed Apr 2 16:04:07 EST 2003


show ip route from 2600A

Sounds like it's getting some other routing info.   192.168.5.254 is the 
2600A correct?

--On Wednesday, April 02, 2003 6:26 PM -0500 Joshua Smith 
<joshua.ej.smith at usa.net> wrote:

> 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 -
>
>
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