On 2017 May 27 (Sat) at 11:05:30 +0200 (+0200), Peter Hessler wrote:
:On 2016 Sep 26 (Mon) at 20:09:13 +0200 (+0200), Peter Hessler wrote:
::We already have a local AS saved per peer. Let's use it. This is very
::useful when one needs to change their local AS.
::
::"
::neighbor 192.0.2.1 {
:: remote-as 65530
:: local-as 131000
::}
::"
::
::OK?
::
:
:Updated!
:
:Now it works far better, it supports "local-as 131000 65000", works
:better with prepend-self.
:
:You MUST use filters to protect yourself from receiving your own routes
:over the local-as peer. There be dragons and grues.
:
:OK?
:
Only an updated man page bit:
Index: bgpd.conf.5
===================================================================
RCS file: /cvs/openbsd/src/usr.sbin/bgpd/bgpd.conf.5,v
retrieving revision 1.152
diff -u -p -u -p -r1.152 bgpd.conf.5
--- bgpd.conf.5 13 Jan 2017 18:59:12 -0000 1.152
+++ bgpd.conf.5 27 May 2017 10:04:03 -0000
@@ -874,6 +874,17 @@ is given,
.Xr bgpd 8
binds to this address first.
.Pp
+.It Ic local-as Ar as-number Op Ar as-number
+Set the AS number sent to the remote system.
+Used as described above under
+.Sx GLOBAL CONFIGURATION
+option
+.Ic AS .
+.Pp
+Since there is no AS path loop check, this option is dangerous, and
+requires you to add filters to prevent receiving your ASNs.
+Intended to be used temporarily, for migrations to another AS.
+.Pp
.It Ic log no
Disable neighbor specific logging.
.Pp
--
Procrastinators do it tomorrow.
