From: John Underhill (stepnwlf@magma.ca)
Date: Sun Jan 04 2004 - 17:14:36 GMT-3
Got it.. think it's just 'study fatigue' on my part, or Seeing Anomalous
Route Syndrome..
Thanks
----- Original Message -----
From: Dmitry Volkov
To: 'CXP Peter'
Cc: ccielab@groupstudy.com
Sent: Sunday, January 04, 2004 2:12 PM
Subject: RE: Router blew a gasket
Some comment inline:
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On
> Behalf Of CXP Peter
> Sent: Sunday, January 04, 2004 1:59 PM
> To: ccielab@groupstudy.com
> Subject: Re: Router blew a gasket
>
>
> IP address 172.16.111.1 255.255.248.0 happens to be on the
> 172.16.104.0/21
> subnet and you advertised some addresses from this subnet
Network statement under OSPF doesn't advertise addresses it rather
specifies
what interface OSPF is running on
and OSPF will advertise actual network configured on this interface, which
is /21 in this case.
> with "network
> 172.16.111.0 0.0.0.7 area 11". So it is very normal to see
> this route being
> advertised in OSPF.
>
> _____________________________
> Peter
> #7247 (R&S, Security, SP)
> CyscoExpert Corp.
> 4433 W. Touhy Ave. Suite 410
> Lincolnwood, IL 60712
> Phone (847) 674-3392
> Toll Free (866) CyscoXP (297-2697)
> Fax (847) 674-2625
>
> ----- Original Message -----
> From: "John Underhill" <stepnwlf@magma.ca>
> To: <ccielab@groupstudy.com>
> Sent: Sunday, January 04, 2004 12:36 PM
> Subject: Router blew a gasket
>
>
> > I was looking through the routing tables and noticed a
> route I didn't
> > advertise. This is really strange, because it says loop0 is
> connected on
> this
> > box in the route table, and is advertising it into OSPF,
> but the loop0
> address
> > that is configured is not the same, (not even close), and I never
> advertised
> > this network in OSPF. Router has been rebooted and erased
> since the last
> > config, but it looks like it's keeping it in memory.. pretty weird..
> >
> > 172.16.0.0/16 is variably subnetted, 9 subnets, 5 masks
> > C 172.16.134.0/24 is directly connected, Serial0.2
> > O IA 172.16.44.0/29 [110/65] via 172.16.134.4, 00:03:52,
> Serial0.2
> > O IA 172.16.22.0/27 [110/65] via 172.16.123.2, 00:03:52,
> Serial0.1
> > C 172.16.1.0/24 is directly connected, Serial1
> > C 172.16.123.0/24 is directly connected, Serial0.1
> > C 172.16.104.0/21 is directly connected, Loopback0
> <-- This one --
> > R1#
> > !
> > interface Loopback0
> > ip address 172.16.111.1 255.255.248.0
> > no ip directed-broadcast
> > no ip route-cache
> > ip ospf network point-to-point
> >
> > router ospf 110
> > area 111 virtual-link 172.16.134.4
> > network 172.16.111.0 0.0.0.7 area 11
> > network 172.16.123.0 0.0.0.255 area 0
> > network 172.16.134.0 0.0.0.255 area 111
> >
> > Routing table on another box shows the route..
> >
> > C 172.16.122.0/27 is directly connected, Loopback0
> > C 172.16.22.0/24 is directly connected, Dialer0
> > C 172.16.22.1/32 is directly connected, Dialer0
> > C 172.16.123.0/24 is directly connected, Serial0.1
> > O IA 172.16.104.0/21 [110/65] via 172.16.123.1,
> 00:01:58, Serial0.1
> > R2#
> >
> >
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