No, here is not the problem on auto-summary, remember the ip summary-route
command has a supernet address, 192.168.0.0/16, so disabled auto-summary or
not doesn't matter, it will always be suppressed.
The point I want to clear is whether ip summary-address will suppress only
external eigrp routes as Doyle said in that case study or both.
Thanks,
Jerry
----- Original Message -----
From: "EA Louie"
To: "Jerry Smith"
Cc:
Sent: Sunday, May 06, 2001 4:04 PM
Subject: Re: EIGRP: questions on "ip summary-address" command [7:3335]
>oops, forget the 192.168.4.0 subnets - I just realized that autosummary was
>enabled on eigrp 2.
i>f Snider gets the individual network advertisement at all, it will be
>192.168.4.0/24 because it was summarized by Robinson's eigrp 2.
>-e-
> make sure you redistributed ospf 1 into eigrp 1, and eigrp 1 into eigrp 2
on
> Robinson.
>
> Also, do a clear ip route * and clear arp on Robinson and Snider and see
if
> the route to 192.168.4.0 reappears on Snider.
>
> If not, Doyle could be wrong on this one. His paragraph on 726 regarding
> suppression (A point of interest in Snider's...) doesn't make sense, since
> EIGRP summarization applies to ALL routes advertised by the source router
> (Robinson), not *just* the routes redistributed into eigrp 2.
>
> If his statement were right, then I'd actually expect to see on Snider a
> route of 192.168.4.0 subnetted with the /29 and /30 subnets instead of the
> summary that he shows in the illustration.
>
> -e-
>
> ----- Original Message -----
> From: "Jerry Smith"
> To:
> Sent: Sunday, May 06, 2001 3:12 PM
> Subject: Re: EIGRP: questions on "ip summary-address" command [7:3335]
>
>
> > >Question #2 - That's a good troubleshooting exercise for you. do a
> "debug
> > >ip eigrp transactions" on Snider and Robinson to find out why the
subnet
> > >isn't being advertised in the routing table (hint: make sure your
> summary
> > >address didn't include that subnet)
> >
> > That's my point, see the config at the bottom of p725:
> >
> > interface serial1
> > ip address 172.16.2.21 255.255.255.252
> > ip summary-address eigrp 2 192.168.0.0 255.255.0.0
> >
> > My understanding is 192.168.4.0/24 will be supressed by this summay
> address
> > when sent out from s1, Snider doesn't see this, but only 192.168.0.0/16,
> > that's what I have seen from my test.
> >
> > Actually the case study "Address Aggregation" on p384 says the same
thing,
> I
> > don't understand why p726 says 192.168.4.0/24 is still get forwarded.
> >
> > Thanks,
> > Jerry
> > FAQ, list archives, and subscription info:
> http://www.groupstudy.com/list/cisco.html
> > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
> >
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