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 - 08:31:30 ART