Re: rdomain with BGP dynamic route
Hi Claudio,
Thank you so much for the info. To run multiple bgdp instances, do I need to
use different listening port numbers?
Regards,
-yang
-Original Message-
From: owner-m...@openbsd.org [mailto:owner-m...@openbsd.org] On Behalf Of
Claudio Jeker
Sent: Saturday, August 08, 2015 4:12 PM
To: misc@openbsd.org
Subject: Re: rdomain with BGP dynamic route
On Thu, Jul 30, 2015 at 11:26:56AM -0400, XU, YANG (YANG) wrote:
Adam,
Your comments and links are very helpful, they made some concepts
clear for me. Many thanks!
What I need essentially is VRF function which converts IPv4 prefix to
VPNv4 prefix dynamically. I hope experts can help on this. After
spending so much time on searching for the answer, sending beer is an
easier thing to do. Just give me a working example, and beer will be
on the way :)
Hmm. To do this you need to run multiple bgpds one doing the VPNv4 handling and
then a bgpd instance per client (running that specific rdomain). For those
client bgpd you need to add some extra config to make it all work:
# change fib priority so that bgpd does not filter those routes fib-priority 36
# change location of bgpctl socket socket /var/run/bgpd.customer1.sock
Then I think it is the easiest to start those client bgpd with route -T 3 exec
/usr/sbin/bgpd
This will run bgpd in rdomain 3. You still need an mpe(4) interface in rdomain
3 so that the primary bgpd exports the routes (plus you will need some ldpd and
MPLS config as described in the presentation you mentioned).
It may be possible to use:
rde rib customer-1 rtable 3
and some filter magic to run all in a single bgpd but I think that is a lot
more trouble than having different processes running.
Originally the idea was that the PE - CE route exachange would be done via
OSPF. This is why you need multiple processes for this setup.
--
:wq Claudio
-Original Message-
From: Adam Thompson [mailto:athom...@athompso.net]
Sent: Tuesday, July 28, 2015 8:59 PM
To: XU, YANG (YANG) y...@research.att.com
Cc: misc@openbsd.org
Subject: Re: rdomain with BGP dynamic route
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
Re: rdomain with BGP dynamic route
On Thu, Jul 30, 2015 at 11:26:56AM -0400, XU, YANG (YANG) wrote:
Adam,
Your comments and links are very helpful, they made some concepts clear
for me. Many thanks!
What I need essentially is VRF function which converts IPv4 prefix to
VPNv4 prefix dynamically. I hope experts can help on this. After
spending so much time on searching for the answer, sending beer is an
easier thing to do. Just give me a working example, and beer will be on
the way :)
Hmm. To do this you need to run multiple bgpds one doing the VPNv4
handling and then a bgpd instance per client (running that specific
rdomain). For those client bgpd you need to add some extra config to make
it all work:
# change fib priority so that bgpd does not filter those routes
fib-priority 36
# change location of bgpctl socket
socket /var/run/bgpd.customer1.sock
Then I think it is the easiest to start those client bgpd with
route -T 3 exec /usr/sbin/bgpd
This will run bgpd in rdomain 3. You still need an mpe(4) interface in
rdomain 3 so that the primary bgpd exports the routes (plus you will need
some ldpd and MPLS config as described in the presentation you mentioned).
It may be possible to use:
rde rib customer-1 rtable 3
and some filter magic to run all in a single bgpd but I think that is a
lot more trouble than having different processes running.
Originally the idea was that the PE - CE route exachange would be done
via OSPF. This is why you need multiple processes for this setup.
--
:wq Claudio
-Original Message-
From: Adam Thompson [mailto:athom...@athompso.net]
Sent: Tuesday, July 28, 2015 8:59 PM
To: XU, YANG (YANG) y...@research.att.com
Cc: misc@openbsd.org
Subject: Re: rdomain with BGP dynamic route
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
Re: rdomain with BGP dynamic route
Adam, That's good suggestion, thanks and I will give it a try. I plan to use OpenBSD as a PE from a service provider point of view, I guess that's not a popular use case. Regards, -Yang -Original Message- From: Adam Thompson [mailto:athom...@athompso.net] Sent: Thursday, July 30, 2015 6:04 PM To: XU, YANG (YANG) y...@research.att.com Cc: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route On 07/30/2015 10:26 AM, XU, YANG (YANG) wrote: Adam, Your comments and links are very helpful, they made some concepts clear for me. Many thanks! What I need essentially is VRF function which converts IPv4 prefix to VPNv4 prefix dynamically. I hope experts can help on this. After spending so much time on searching for the answer, sending beer is an easier thing to do. Just give me a working example, and beer will be on the way :) Regards, -Yang After that clarification, I understand even less than I did before of what you want to accomplish. Regardless, at this point I'd say your options for continuing with OpenBSD might be limited to: a) go to one of the BSD conferences, locate one of the developers who work on the network stack [this isn't very hard], and ask them; or b) pay someone (e.g. maybe reyk@ et al. over at Esdenera Networks, not sure who else would be a candidate) to figure it out for you and, if necessary, fix it. -Adam
Re: rdomain with BGP dynamic route
Then you should have been at BSDCan last month! Olivier Cochard-Labbé of Orange(?) is deploying something like this but using FreeBSD (http://www.bsdcan.org/2015/schedule/events/555.en.html), and Peter Hessler talked at length about rdomains in OpenBSD (http://www.bsdcan.org/2015/schedule/events/555.en.html). Both presentations were recorded, but obviously you can't do interactive QA with a YouTube video :-). -Adam On 07/31/2015 10:48 AM, XU, YANG (YANG) wrote: Adam, That's good suggestion, thanks and I will give it a try. I plan to use OpenBSD as a PE from a service provider point of view, I guess that's not a popular use case. Regards, -Yang -Original Message- From: Adam Thompson [mailto:athom...@athompso.net] Sent: Thursday, July 30, 2015 6:04 PM To: XU, YANG (YANG) y...@research.att.com Cc: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route On 07/30/2015 10:26 AM, XU, YANG (YANG) wrote: Adam, Your comments and links are very helpful, they made some concepts clear for me. Many thanks! What I need essentially is VRF function which converts IPv4 prefix to VPNv4 prefix dynamically. I hope experts can help on this. After spending so much time on searching for the answer, sending beer is an easier thing to do. Just give me a working example, and beer will be on the way :) Regards, -Yang After that clarification, I understand even less than I did before of what you want to accomplish. Regardless, at this point I'd say your options for continuing with OpenBSD might be limited to: a) go to one of the BSD conferences, locate one of the developers who work on the network stack [this isn't very hard], and ask them; or b) pay someone (e.g. maybe reyk@ et al. over at Esdenera Networks, not sure who else would be a candidate) to figure it out for you and, if necessary, fix it. -Adam
Re: rdomain with BGP dynamic route
The presentations were impressive, I wish I knew earlier and went there. Thanks again, -Yang -Original Message- From: Adam Thompson [mailto:athom...@athompso.net] Sent: Friday, July 31, 2015 2:09 PM To: XU, YANG (YANG) y...@research.att.com Cc: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route Then you should have been at BSDCan last month! Olivier Cochard-Labbé of Orange(?) is deploying something like this but using FreeBSD (http://www.bsdcan.org/2015/schedule/events/555.en.html), and Peter Hessler talked at length about rdomains in OpenBSD (http://www.bsdcan.org/2015/schedule/events/555.en.html). Both presentations were recorded, but obviously you can't do interactive QA with a YouTube video :-). -Adam On 07/31/2015 10:48 AM, XU, YANG (YANG) wrote: Adam, That's good suggestion, thanks and I will give it a try. I plan to use OpenBSD as a PE from a service provider point of view, I guess that's not a popular use case. Regards, -Yang -Original Message- From: Adam Thompson [mailto:athom...@athompso.net] Sent: Thursday, July 30, 2015 6:04 PM To: XU, YANG (YANG) y...@research.att.com Cc: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route On 07/30/2015 10:26 AM, XU, YANG (YANG) wrote: Adam, Your comments and links are very helpful, they made some concepts clear for me. Many thanks! What I need essentially is VRF function which converts IPv4 prefix to VPNv4 prefix dynamically. I hope experts can help on this. After spending so much time on searching for the answer, sending beer is an easier thing to do. Just give me a working example, and beer will be on the way :) Regards, -Yang After that clarification, I understand even less than I did before of what you want to accomplish. Regardless, at this point I'd say your options for continuing with OpenBSD might be limited to: a) go to one of the BSD conferences, locate one of the developers who work on the network stack [this isn't very hard], and ask them; or b) pay someone (e.g. maybe reyk@ et al. over at Esdenera Networks, not sure who else would be a candidate) to figure it out for you and, if necessary, fix it. -Adam
Re: rdomain with BGP dynamic route
Adam,
Your comments and links are very helpful, they made some concepts clear for
me. Many thanks!
What I need essentially is VRF function which converts IPv4 prefix to VPNv4
prefix dynamically. I hope experts can help on this. After spending so much
time on searching for the answer, sending beer is an easier thing to do. Just
give me a working example, and beer will be on the way :)
Regards,
-Yang
-Original Message-
From: Adam Thompson [mailto:athom...@athompso.net]
Sent: Tuesday, July 28, 2015 8:59 PM
To: XU, YANG (YANG) y...@research.att.com
Cc: misc@openbsd.org
Subject: Re: rdomain with BGP dynamic route
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
Re: rdomain with BGP dynamic route
On 07/30/2015 10:26 AM, XU, YANG (YANG) wrote: Adam, Your comments and links are very helpful, they made some concepts clear for me. Many thanks! What I need essentially is VRF function which converts IPv4 prefix to VPNv4 prefix dynamically. I hope experts can help on this. After spending so much time on searching for the answer, sending beer is an easier thing to do. Just give me a working example, and beer will be on the way :) Regards, -Yang After that clarification, I understand even less than I did before of what you want to accomplish. Regardless, at this point I'd say your options for continuing with OpenBSD might be limited to: a) go to one of the BSD conferences, locate one of the developers who work on the network stack [this isn't very hard], and ask them; or b) pay someone (e.g. maybe reyk@ et al. over at Esdenera Networks, not sure who else would be a candidate) to figure it out for you and, if necessary, fix it. -Adam
Re: rdomain with BGP dynamic route
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
Re: rdomain with BGP dynamic route
Hello, I think this is what I tried a while ago, which is not possible. Cf http://openbsd-archive.7691.n7.nabble.com/Multi-VRF-bgpd-no-MPLS-td248639.html Bgpd.conf(5) says : Currently the routing table must belong to the default routing domain -- Cordialement, Pierre BARDOU -Message d'origine- De : XU, YANG (YANG) [mailto:y...@research.att.com] Envoyé : dimanche 26 juillet 2015 14:28 À : misc@openbsd.org Objet : Re: rdomain with BGP dynamic route Thanks for the info. I read the rdomain configuration section. My problem is how to put prefix learned dynamically from a BGP neighbor to a specific rdomain (not default rdomain 0). Sadly, I still don't know if that's possible. Regards, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of Alexander Salmin [alexan...@salmin.biz] Sent: 25 July 2015 17:36 To: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route Hey, man 5 bgpd.conf See section Routing Domain Configuration and parameters export-target and import-target. I suspect that is what you want. Alexander Salmin On 2015-07-24 13:47, 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. Thanks, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of XU, YANG (YANG) Sent: 23 July 2015 08:06 To: misc@openbsd.org Subject: rdomain with BGP dynamic route Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
Re: rdomain with BGP dynamic route
Pierre, Thanks for forwarding the information to me. Yes, what you tried was related, especially the overlapping addresses of clients. What I want to do is to assign different RD to different VRF routes learned dynamically from clients. Based on what I heard and read so far, I just assume it's not doable. Thanks again, -Yang -Original Message- From: BARDOU Pierre [mailto:bardo...@mipih.fr] Sent: Monday, July 27, 2015 8:47 AM To: XU, YANG (YANG) y...@research.att.com; misc@openbsd.org Subject: RE: rdomain with BGP dynamic route Hello, I think this is what I tried a while ago, which is not possible. Cf http://openbsd-archive.7691.n7.nabble.com/Multi-VRF-bgpd-no-MPLS-td248639.html Bgpd.conf(5) says : Currently the routing table must belong to the default routing domain -- Cordialement, Pierre BARDOU -Message d'origine- De : XU, YANG (YANG) [mailto:y...@research.att.com] Envoyé : dimanche 26 juillet 2015 14:28 À : misc@openbsd.org Objet : Re: rdomain with BGP dynamic route Thanks for the info. I read the rdomain configuration section. My problem is how to put prefix learned dynamically from a BGP neighbor to a specific rdomain (not default rdomain 0). Sadly, I still don't know if that's possible. Regards, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of Alexander Salmin [alexan...@salmin.biz] Sent: 25 July 2015 17:36 To: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route Hey, man 5 bgpd.conf See section Routing Domain Configuration and parameters export-target and import-target. I suspect that is what you want. Alexander Salmin On 2015-07-24 13:47, 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. Thanks, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of XU, YANG (YANG) Sent: 23 July 2015 08:06 To: misc@openbsd.org Subject: rdomain with BGP dynamic route Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
Re: rdomain with BGP dynamic route
Thanks for the info. I read the rdomain configuration section. My problem is how to put prefix learned dynamically from a BGP neighbor to a specific rdomain (not default rdomain 0). Sadly, I still don't know if that's possible. Regards, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of Alexander Salmin [alexan...@salmin.biz] Sent: 25 July 2015 17:36 To: misc@openbsd.org Subject: Re: rdomain with BGP dynamic route Hey, man 5 bgpd.conf See section Routing Domain Configuration and parameters export-target and import-target. I suspect that is what you want. Alexander Salmin On 2015-07-24 13:47, 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. Thanks, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of XU, YANG (YANG) Sent: 23 July 2015 08:06 To: misc@openbsd.org Subject: rdomain with BGP dynamic route Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
Re: rdomain with BGP dynamic route
Hey, man 5 bgpd.conf See section Routing Domain Configuration and parameters export-target and import-target. I suspect that is what you want. Alexander Salmin On 2015-07-24 13:47, 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. Thanks, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of XU, YANG (YANG) Sent: 23 July 2015 08:06 To: misc@openbsd.org Subject: rdomain with BGP dynamic route Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
Re: rdomain with BGP dynamic route
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. Thanks, -Yang From: owner-m...@openbsd.org [owner-m...@openbsd.org] On Behalf Of XU, YANG (YANG) Sent: 23 July 2015 08:06 To: misc@openbsd.org Subject: rdomain with BGP dynamic route Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
rdomain with BGP dynamic route
Hi all, I am configuring OpenBSD bgpd so that it can relay the routes learned from customer BGP servers to a route reflector (RR). Customer BGP servers only speak IPv4 BGP, so my OpenBSD bgpd needs to add different route-distinguisher and route-target to the dynamic routes learned from each customer BGP neighbor before forwarding to RR. As I understand, I should be able to use rdomain to implement this. What I really need conceptually is to attach a BGP neighbor to a rdomain, so that dynamic routes learned from that BGP neighbor are added to the specified rdomain. But I failed to find a way to do this in OpenBSD. Does anyone know if this is possible and give me an BGP configure example? Many thanks in advance, -Yang
