RE: Default-Information Blocking in EIGRP Not Working

From: Russell Kelly \(rukelly\) (rukelly@cisco.com)
Date: Sun Jul 16 2006 - 14:14:07 ART


Thanks Victor

 I can do it with distribute lists etc -- just wondering if someone had
a good explanation of why it's not working with no default-information
--- seems strange, but I'm sure it's just for certain situations ---
but none of the docs explain what that situation is --- also a mate of
mine showed me it working with a redistributed default -- just wondering
if there was something specific in his topology. Anyone got any clear
explanation of how this feature works??

-----Original Message-----
From: Victor Cappuccio [mailto:cvictor@protokolgroup.com]
Sent: 16 July 2006 18:08
To: Russell Kelly (rukelly); ccielab@groupstudy.com
Subject: RE: Default-Information Blocking in EIGRP Not Working

Yeah, seems that the command if not working right But if you what to
filter the 0/0 route why not use Ip prefix-list X deny 0.0.0.0/0 Ip
prefix-list X permit 0.0.0.0/0 le 32 Router eigrp 6 Distribute-list
prefix X in e0/1
 

-----Mensaje original-----
De: nobody@groupstudy.com [mailto:nobody@groupstudy.com] En nombre de
Russell Kelly (rukelly) Enviado el: Domingo, 16 de Julio de 2006 12:35
p.m.
Para: ccielab@groupstudy.com
Asunto: Default-Information Blocking in EIGRP Not Working

Hi All,

I am having trouble getting EIGRP's no default-information in working.
I have configured a static on the neighbor and redistributed into eigrp,
then tried to block this on the neighbor as detailed below:

R1 - originating default

router eigrp 1024
 redistribute static metric 1 1 1 1 1500 network 150.1.1.1 0.0.0.0
network 174.1.13.1 0.0.0.0 network 174.1.145.1 0.0.0.0 no auto-summary
eigrp router-id 150.1.1.1 !
ip route 0.0.0.0 0.0.0.0 Null0 240

R4 trying to block it:

router eigrp 1024
 variance 4
 network 150.1.4.4 0.0.0.0
 network 174.1.45.4 0.0.0.0
 network 174.1.145.4 0.0.0.0
 no default-information in
 no auto-summary
 eigrp router-id 150.1.4.4
!

But I still get the default in the routing table of R4!! ??

Gateway of last resort is 174.1.145.1 to network 0.0.0.0

B 119.0.0.0/8 [200/0] via 150.1.5.5, 00:04:22
-
-
Snip
-
-
D EX 205.90.31.0/24 [170/2561536512] via 174.1.145.1, 00:06:40,
Serial0/0 D*EX 0.0.0.0/0 [170/2561536256] via 174.1.145.1, 00:04:59,
Serial0/0

Can anyone explain this?? -- I have read the doc CD and it's kind of
vague -- though mentions blocking candidate defaults and external routes
but I cannot see why it's not working --- HELP??

Russ



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