RE: How to preventing a specific interface from being advertised by IGRP, but can redi by OSPF into IGRP

From: Yen (f87321@xxxxxxxxxxxx)
Date: Wed Aug 01 2001 - 14:02:38 GMT-3


   
I knew that. But what if I want these filtered interface being redistribute by
OSPF? As I make a ACL to filter the connected interfaces in IGRP, it also filte
r the same route redistributed from OSPF, what should I do?
Thanks,

Yen

-----Original Message-----
From: Padhu (LFG) [mailto:padhu@steinroe.com]
Sent: Thursday, August 02, 2001 12:41 AM
To: 'Yen'; 'Jay Chandradas'
Cc: ccielab@groupstudy.com
Subject: RE: How to preventing a specific interface from being
advertised by IGRP, but can redi by OSPF into IGRP

pasive interface prevents advertisements going out not "what is being sent"
in the route advertisement. Directly connected interfaces belonging to the
major network will get advertised by default with rip and igrp. So create a
acl of nets you want only to be advertised thro igrp and use distribute-list
out igrp under router igrp process. HTH.

Cheers,Padhu

-----Original Message-----
From: Yen [mailto:f87321@iplus.net.tw]
Sent: Wednesday, August 01, 2001 11:33 AM
To: 'Jay Chandradas'
Cc: ccielab@groupstudy.com
Subject: How to preventing a specific interface from being advertised by
IGRP, but can redi by OSPF into IGRP

There's no problem to redistribute IGRP into OSPF, when redistribute OSPF
into IGRP, I found the route redistributed from OSPF doesn't show correctly.
Because all the interface belong to 172.16.0.0, all of them are advertised
by IGRP, they appear in the R2's routing table with IGRP's metric, but not
the metric specified during the procedure of redistributing OSPF into IGRP.
Is that wrong or correct? How can I prevent a interface advertised by IGRP,
but can still redistribute by OSPF into IGRP, and appear with the metric I
specify during redistribution?
Thanks.

Yen

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Jay Chandradas
Sent: Wednesday, August 01, 2001 11:08 AM
To: f87321@iplus.net.tw
Cc: ccielab@groupstudy.com
Subject: Re: Two IGRP Questions.

Can you do a passive interface s1 under IGRP process . And also under OPSF
redistributed connected met 10 subnet route-map <name>

and define a route map allowing only s1

Does this help ?

Thnx
Jay.
----- Original Message -----
From: "Yen" <f87321@iplus.net.tw>
To: "'Jay Chandradas'" <jachandr@cisco.com>; <ccielab@groupstudy.com>
Sent: Tuesday, July 31, 2001 7:20 PM
Subject: RE: Two IGRP Questions.

> Jay,
>
> For the second question, waht I mean is when I use " network 172.16.0.0 "
under IGRP, all the interfaces with /24 subnet will be advertised. Work with
OSPF and redistribution, S1 belongs to OSPF area 0, and need to be
redistributed into IGRP, but I see the R1's S1subnet shows in the R2 with
IGRP's metric, not the metric redistributed from OSPF. I'd like to know how
can I prevent the interface being advertised by IGRP, but advertised by OSPF
correctly.
>
> Thanks,
>
> Yen
>
> -----Original Message-----
> From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
> Jay Chandradas
> Sent: Wednesday, August 01, 2001 1:56 AM
> To: Yen; ccielab@groupstudy.com
> Subject: Re: Two IGRP Questions.
>
>
> Yen,
>
> 1. You have only few options I think.. either you need to have a default
> gateway at R2 so that R1 can ping the /30 subnets. But you need to put a
> default network froma classful netwrok, which you either have to defince a
> static route poting to a null 0 interface . or it ypu should have this
route
> in your RT from somehwhere.
> or - the second option is to define a secondary ip address on both the S0
> interface of R1 and R2 with a /30 mask.
>
> 2. What is the OSPF network that you mentioned in the question ? Can you
do
> a redistributed connected under IGRP process and mask only S1 interface ?
I
> am not sure if this help ? Can u try it and tell us.
>
> Thanks
>
> Jay.
>
>
> ----- Original Message -----
> From: "Yen" <f87321@iplus.net.tw>
> To: <ccielab@groupstudy.com>
> Sent: Tuesday, July 31, 2001 9:04 AM
> Subject: Two IGRP Questions.
>
>
> > I got two IGRP questions.
> >
> > 1. IGRP 1 IGRP 1
> IGRP 1
>
  ---------------------R1-------------------------------
> -------R2---------------
> > 172.16.1.0/24 E0 S0 172.16.2.0/24 S0
> E0 172.16.3.0/28
> >
> > As IGRP is a Classful routing protocol, how to advertise R2's E0 IGRP
> network to R1?
> >
> > 2. If one loopback 0 and Serial 1 are added on R1 with 172.16.4.0/24 and
> 172.16.5.0/24, under IGRP's rule, all the interface's subnet will be
> advertised ( network 172.16.0.0 ). I'm wondering if I can prevent one of
the
> interfaces such like R1's S1 from being advertised by IGRP( not use
> distribute list, because it will still be advertised and redistributed by
> other routing protocol ), but use OSPF to redistribute it into IGRP?
> >
> > Does anyone have the soultions? Or they couldn't be done?
> > Thanks help.
> > **Please read:http://www.groupstudy.com/list/posting.html
> **Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html
**Please read:http://www.groupstudy.com/list/posting.html



This archive was generated by hypermail 2.1.4 : Thu Jun 13 2002 - 10:31:43 GMT-3