[c-nsp] BGP config question
David Barak
thegameiam at yahoo.com
Mon Feb 18 21:30:45 EST 2008
--- On Mon, 2/18/08, Wayne Lee <linkconnect at googlemail.com> wrote:
> I've had a crack at the config and was hoping you guys
> could point me
> in the correct direction or point out any errors.
>
> router bgp 29xxx
> network 217.xxx.xxx.0 mask 255.255.240.0 <----- Get rid of this line
The customer should originate their own BGP network, and you, as the transit provider, should just pass their route on to your upstreams.
> neighbor 82.xxx.xxx.162 remote-as 20xxx
> neighbor 82.xxx.xxx.162 description eBGP transit for
> customer
> neighbor 82.xxx.xxx.162 password ************
> neighbor 82.xxx.xxx.162 prefix-list AS20xxx-in in
> neighbor 82.xxx.xxx.162 distribute-list 190 out
> neighbor 82.xxx.xxx.162 filter-list 10 out
>
> ip prefix-list AS20xxx-in seq 5 permit 217.xxx.xxx.0/20
> ip prefix-list AS20xxx-in seq 10 deny 0.0.0.0/0 <--- not needed, there's an implicit deny at the end.
You might want to modify your prefix list to permit a small deaggregation for traffic engineering (217.x.x.0/20 le 22 for instance), and something which is probably worth putting into place now (before you've got a zillion BGP transit customers) is "neighbor 217.x.x.0 max-prefix x".
> Thanks in advance for your time.
you're welcome,
David Barak
Need Geek Rock? Try The Franchise:
http://www.listentothefranchise.com
____________________________________________________________________________________
Never miss a thing. Make Yahoo your home page.
http://www.yahoo.com/r/hs
More information about the cisco-nsp
mailing list