I see what you mean.
This, I think, is close to what you're looking for, but I'm not 100%
certain of how to accomplish exactly what you want:
nexthop qualify via bgp
listen on A.B.C.D ## vrf member address of, say, em1
rtable 2 ## put vrf interface into rdomain 2 via ifconfig?
rdomain 2 {
rd 123:456
depend on em1
}
neighbor VPNCLIENT1 {
depend on em1
}
...I don't know how to avoid running a separate instance of bgpd(8) per
VRF, however.
Given that OpenBSD has, apparently, a working MPLS + LDP implementation,
this is obviously yet another case where the manual pages contain enough
information
Based on jeker's MPLS paper back at EuroBSDCon 2011, it may be the case
that BGP + VRF really only works work mpe(4).
Ah! I found someone else's documentation that explains it... you do
still need to use rdomain0, but you MUST tag the routes. rdomain0
contains everything, including the [possibly overlapping] routes, but
with prefixes to keep them separate.
See http://firstyear.id.au/entry/21. Also see jeker's explanation
(perhaps dated) here:
http://openbsd-archive.7691.n7.nabble.com/Using-RDomain-setup-with-pf-4-and-bgpd-8-td42066.html.
(Also check out http://lmgtfy.com/?q=openbsd+bgp+vrf. Admittedly, the
fourth or fifth result _is_ this thread :-/.)
Failing that, as I can't tell for certain if it does what you want, wait
for Claudio, Henning, or whoever else is working on it now to figure out
how to make it work better! I hear sending them beer sometimes helps...
-Adam
On 07/24/2015 08:07 PM, XU, YANG (YANG) wrote:
Adam,
I really appreciate your reply. I read bgpd.conf and see rdomain can only
define network as explicit, static or connected. In my case, I need to import
dynamic prefix from BGP session. Right now all prefix learned from BGP goes to
rdomain 0. I want to put prefix learned from BGP into the rdomain I specify.
Thanks,
-Yang
________________________________________
From: Adam Thompson [athom...@athompso.net]
Sent: 24 July 2015 20:33
To: XU, YANG (YANG)
Subject: Re: rdomain with BGP dynamic route
On 2015-07-24 06:47 AM, XU, YANG (YANG) wrote:
Let me describe it in another way. Can I create a new rdomain as a VRF and use
the rdomain to import/export customer's prefix through BGP?
I will greatly appreciate it if you can provide any information. I have seen
some information online, but prefix is either from static configuration or
connected network. In my case, I need to support dynamic routes from BGP in VRF.
Short answer: yes.
See man bgpd.conf(5):
ROUTING DOMAIN CONFIGURATION
bgpd(8) supports the setup and distribution of Virtual Private Networks.
It is possible to import and export prefixes between routing domains.
Each routing domain is specified by an rdomain section, which allows
properties to be set specifically for that rdomain:
rdomain 1 {
descr "a rdomain"
rd 65002:1
import-target rt 65002:42
export-target rt 65002:42
network 192.168.1/24
depend on mpe0
}
--
-Adam Thompson
athom...@athompso.net
