From: Yen (f87321@xxxxxxxxxxxx)
Date: Wed Aug 01 2001 - 21:38:26 GMT-3
Sanjay,
I tried, but failed. I used ACL and distribute list in R1, but didn't work, all
the connected interfaces belong to 172.16.0.0 with /24 still were advertised.
Any suggestion?
Yen
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
sanjay
Sent: Thursday, August 02, 2001 6:43 AM
To: Yen; 'Padhu (LFG)'; '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
Maybe use distribute-list in, so IGRP doesn't learn about the routes and it
only learns via re-distribution. I had similar issues and using ACL and
Distribute list, it fixed the problem.
----- Original Message -----
From: "Yen" <f87321@iplus.net.tw>
To: "'Padhu (LFG)'" <padhu@steinroe.com>; "'Jay Chandradas'"
<jachandr@cisco.com>
Cc: <ccielab@groupstudy.com>
Sent: Wednesday, August 01, 2001 10:02 AM
Subject: RE: How to preventing a specific interface from being advertised by
IGRP, but can redi by OSPF into IGRP
> 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 filter 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
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