[c-nsp] Re: Source address on BGP peering set up

[Piltrafilla]

Hi Brian,

On Mon, 17 Jan 2005 18:13:36 -0600, Brian Feeny <signal at shreve.net> wrote:
> Well, what I am saying is, BGP peer with whatever address the router
> wants
> to on that interface (primary).  If you are worried because you are
> migrating off that
> netblock, then make the BGP peering the last thing you migrate away.
> Or, setup
> a loopback with the new space (or at least 1 address of it) and BGP
> peer using that.
> 
> And yes, if you do that, you will need eBGP multihop if its a eBGP
> peer, not really a
> big deal.


> I am not saying to get rid of the config completely for the interface.
> Personally
> I can't stand secondary addresses, especially when people  have like
> 8-10 of them
> stacked on an interface........*usually* there is a better way to do
> things.
> 
> Do you just have one netblock?  Like if you have a new /19 your
> migrating too, just
> get a single /32 out of any block, assign it to the loopback, make sure
> your IGP
> redistributes connected, and then you should be ok.

I was not talking about an IBGP migration but an EBGP one so IGP
doesn't apply here.

Thanx for your comments. :)