RE: Virtual Link Auth Again

From: Albert Lu (albert_ccie@xxxxxxxxx)
Date: Tue Nov 20 2001 - 17:48:21 GMT-3


   
Bill,

I think you need 'area 0 authentication message-digest' for the virtual link
to be doing authentication, since the virtual link is like a link into area
0.

Albert

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Bill Reilly
Sent: Monday, November 12, 2001 11:56 AM
To: Steve O'Ney; ccielab@groupstudy.com
Subject: Re: Virtual Link Auth Again

Sure.

Here is my area 0 router:

The VL is coming in over the e0 interface, but because i am only trying to
authenticate the VL router I do not put any authentication information
there, it
is under the ospf process.

!
interface Ethernet0
 ip address 10.0.1.1 255.255.255.0
 ip ospf priority 100
 no keepalive
!
interface Serial0
 ip address 130.10.1.1 255.255.255.0
 encapsulation frame-relay
 ip ospf message-digest-key 1 md5 cisco
 ip ospf priority 100
!
router ospf 64733
 network 10.0.1.0 0.0.0.255 area 10
 network 130.10.1.0 0.0.0.255 area 0
 network 1.1.1.0 0.0.0.255 area 1
 neighbor 130.10.1.6 priority 4
 neighbor 130.10.1.5 priority 2
 area 0 authentication message-digest
 area 10 virtual-link 5.5.5.5 message-digest-key 1 md5 cisco

Here is my remote router:

interface Ethernet0/0
 ip address 10.0.1.22 255.255.255.0
 full-duplex
 service-policy output QoS-Policy
!
interface Serial1/0
 ip address 50.40.1.1 255.255.255.252
 no ip mroute-cache
 clockrate 128000
!
router ospf 64733
 log-adjacency-changes
 area 5 virtual-link 4.4.4.4
 area 10 virtual-link 1.1.1.1 authentication message-digest
 area 10 virtual-link 1.1.1.1 message-digest-key 1 md5 cisco
 network 10.0.1.0 0.0.0.255 area 10
 network 50.40.1.0 0.0.0.255 area 5

Bill

Steve O'Ney wrote:

> Bill,
>
> Could I get a sample config from your router?
>
> THanks
>
> Steve
>
> ----- Original Message -----
> From: "Bill Reilly" <william.j.reilly@verizon.net>
> To: "Steve O'Ney" <soney@proaptiv.com>; <ccielab@groupstudy.com>
> Sent: Sunday, November 11, 2001 5:16 PM
> Subject: Re: Virtual Link Auth Again
>
> > Steve,
> >
> > When you use the command listed below, you set up plain text
> authentication on
> > both routers. This is the type 1 part of the message in the clip I
sent.
> >
> > I was able to get this working, then changed my authentication type to
> > message-digest with md5. Once I set my area 0 auth to message-digest
and
> set up
> > my keys on both my area 0 router and my remote router everything came
up.
> >
> >
> > Thanks,
> > Bill
> >
> > Steve O'Ney wrote:
> >
> > > Bill,
> > >
> > > I have knocked my head against the wall on several occasions over this
> and I
> > > have found a fix, type this command on both ends of your virtual link.
I
> > > can't say why this works because I don't have a clue, I can't find it
> > > anywhere but this is what worked for me:
> > >
> > > area [#] virtual-link X.X.X.X authentication
> > >
> > > don't ask me why but it works.
> > >
> > > Steve
> > >
> > > ----- Original Message -----
> > > From: "Bill Reilly" <william.j.reilly@verizon.net>
> > > To: <ccielab@groupstudy.com>
> > > Sent: Sunday, November 11, 2001 11:36 AM
> > > Subject: Virtual Link Auth Again
> > >
> > > > I have been working on some VL labs with and without different types
> of
> > > > authentication. Now the first issue I have is some of my routers
are
> > > > running 11.2 and some are running 12.1. I suspect my issue resides
in
> > > > the differences in IOS, but what I am seeing is when I try to use
> > > > message-digest I am not able to authenticate my VL.
> > > >
> > > > My debug output on both routers states "Rcv pkt from 10.0.1.22,
> > > > Ethernet0 : Mismatch Authentication type. Input pa
> > > > cket specified type 0, we use type 1"
> > > >
> > > > Any help would be appreciated.
> > > >
> > > > Bill



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