This is exactly how ISIS auth. works!
Check out Doyle and also a really good article from Netmasters.
First time, drives you nuts, ain't it? ;->
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From: "Venkataramanaiah.R"
Reply-To: "Venkataramanaiah.R"
To: cisco@xxxxxxxxxxxxxx
Subject: Re: ISIS MD5 authentication question? [7:104551]
Date: Wed, 16 Nov 2005 11:00:49 -0500
>Just one relation question...
>
>i am running L2 only adj everywhere.. and i use domain password
under
>router isis.
>
>If there is a mismatch in password, IOS reports the mismatch, but it
>does not prevent the routes from getting installed? Is this a bug or
>am i wrong in understanding of isis auth?
>
>TIA
>-Venkat
>
>On 10/20/05, Victor Cappuccio wrote:
> > Thanks for the Update Chris..
> >
> >
> > Chris Lewis wrote:
> >
> > > ISIS MD5 authentication has been supported since 12.2(13)T as
> > > specified below, and te routers you'll use in the lab are
capable of
> > > having it configured on them..
> > >
> > >
>http://www.cisco.com/univercd/cc/td/doc/product/software/ios122s/122snwft/release/122s14/ftismd5.htm
> > >
> > > */Victor Cappuccio /* wrote:
> > >
> > > Hello,
> > >
> > > Level 1/2 mode is the default configuration in Cisco
Routers, for
> > > general authentication are based if you are L1 or L2
connection,
> > > for L2
> > > is a domain Password in router ISIS.. For L1 is an Area
Password -
> > > You
> > > must take in account your topology .. also we can set up
the
> > > passwords
> > > on specifics interface . If you do not specify a level, the
> > > default is
> > > Level 1. By default, authentication is disabled. All
Authentication
> > > right now in ISIS is Clear Text, I think that the IOS
Version that we
> > > are having in the lab does not support MD5, but the
configuration for
> > > MD5 in Service Providers IOS is the same as we do in EIGRP
or RIPv2
> > >
> > > HTH
> > > Victor.
> > >
> > >
> > > Cisco Nuts wrote:
> > >
> > > > Hello:
> > > >
> > > > For ISIS MD5 authentication, is it ok in the Lab to just
> > > configure it
> > > > under the interface for either level-1 or level-2 -
depending on
> > > the
> > > > isis type.
> > > >
> > > > In the config. guide, it clearly has it under the router
isis also.
> > > >
> > > > And same for clear text authentication too.
> > > >
> > > > Are both reqd or just one?
> > > >
> > > > Thanks.
> > > >
> > > >
> > >
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> > >
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Message Posted at:
http://www.groupstudy.com/form/read.php?f=7&i=104561&t=104551
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