RE: MVPN - tunel source address

O also. "show snmp mib ifmib ifindex" does this show the ATM as the highest
ifindex number? you may have to enable an snmp-server option in
configuration before this command will take.

Regards,

Tyson Scott - CCIE #13513 R&S, Security, and SP

Managing Partner / Sr. Instructor - IPexpert, Inc.

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From: NN Kumar [mailto:nagendra.cisco_at_gmail.com]
Sent: Thursday, June 10, 2010 11:32 AM
To: Tyson Scott
Cc: Cisco certification
Subject: Re: MVPN - tunel source address

Hi Tyson,

The other addresses are 124.1.1.1/32 and 124.1.13.0/24.

Regards,
Nagendra

On Wed, Jun 9, 2010 at 6:03 PM, Tyson Scott <tscott_at_ipexpert.com> wrote:

What are the other addresses on the device?

Regards,
 
Tyson Scott - CCIE #13513 R&S, Security, and SP
Managing Partner / Sr. Instructor - IPexpert, Inc.
Mailto: tscott_at_ipexpert.com

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of NN
Kumar
Sent: Wednesday, June 09, 2010 8:50 PM
To: Cisco certification
Subject: MVPN - tunel source address

Hi All,

While configuring MVPN, I observed that sometimes (may be with older IOS
version) the source address for the MDT tunnel interface will be non
loopback address with the below log message,

09:18:33: %MDT-4-LBSRC: MDT ATM4/0.12 uses source address 124.1.12.1 from a
non-loopback interface
09:18:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel2, changed
state to up
09:18:33: %LINEPROTO-5-UPDOWN: Line protocol on Interface Tunnel2, changed
state to up

I know that configuring "bgp next-hop loopback" command under VRF will solve
the issue. But I am looking for the reason behind selecting non loopback
address.

I remember reading some document where it mentions that with older version,
when we have both external and internal VPNv4 neighborship established, MDT
tunnel will prefer eBGP VPNv4 source address. But when I tried without eBGP
VPNv4, I still see that the source address is non loopback.

Can someone please explain the concept behind this?

Regards,
Nagendra

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Received on Thu Jun 10 2010 - 11:44:07 ART