Re: L3VPN Command problem

Just to add on what Daniel already explained. There are two ways to route
traffic to destination i.e Route Targets (preferable option) or via route
leak. The below ip route command will enable VRF_A to utilise global routing
table to reach to default destination. Normally when routes not specifically
defined to vrf will go to global routing table.

Normally, route leaks are used in VRF-Lite and when you don't want to run
any BGP. Here is a good link to your query.

http://routing-bits.com/2010/09/13/vrf-lite-route-leaking/

NAT question is well explained by Daniel.

Thanks,

Bilal Hansrod

On Thu, Jul 7, 2011 at 9:10 PM, Daniel Dib <daniel.dib_at_reaper.nu> wrote:

> On to, jul 07, 2011 at 12:18:10, Routing Freak wrote:
> > Subject: L3VPN Command problem
> >
> > Hi fellows,
> >
> > Can anyone explain me the purpose of the following command in Internet
> > access VPN
> >
> > ip route vrf VRF_A 0.0.0.0 0.0.0.0 3.3.3.3 global
> >
> > what is the purpose of global keyword
> >
> >
> > and also
> >
> > ip nat inside source-list VPN_PRefix interface serial 1/0 vrf VRF_A
> > overload
> >
> >
> > what is the use of vrf keyword at the end of the command
> >
>
> The purpose of the global at the end is to tell the router that the
> next-hop
> is located in the global table (no VRF) and not in the VRF itself.
>
> The second command is NAT for a VRF, unless you specify VRF the global
> table
> will be assumed.
>
> HTH Daniel
>
>
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Received on Thu Jul 07 2011 - 21:24:39 ART