[6bone-pl] Re: BGP4+ on 6BONE tunnel to Poland

[Rafal Maszkowski]

On Tue, Aug 25, 1998 at 02:18:58PM +0200, Lars Albertsson wrote:
> > > > So - I started my BGP end. Can you start yours?
> > > > Just now I'm going home for very late breakfast but will look into the
> > > > net later.
> > > Ok. I will activate BGP in a few minutes. By the way, you eat
> > > breakfast at strange hours.
> > I have made a small mistake inyour address, now it is correct but
> > # /usr/ipv6/bin/telnet 3ffe:200:1:a::1 179
> > Trying 3ffe:200:1:a::1...
> > telnet: Unable to connect to remote host: Connection refused
> > # /usr/ipv6/bin/telnet 3ffe:200::2c0:33ff:fe02:8b 179
> > Trying ::ffff:254.2.0.139...
> > telnet: Unable to connect to remote host: Connection refused
> > Am I filtered out on some firewall?
> Nope. You should not be able to telnet to the router, as the service
> is not enabled on that interface.

My BGP4+ should (and does) connect to 3ffe:200:1:a::1, port 179? Am I wrong?

> I forgot to restart the router earlier, but I will do it now. 

Thanks!  It works since few hours.


My filter, written according to your advices

! to SICS
access-list 4 deny 3ffe:200::/24 refine
access-list 4 deny 3ffe:902::/32
access-list 4 deny 3f00::/8
access-list 4 permit all

filters out just everything on output. It is correct behaviour but little
fun so I will try to send 3ffe:902::/32 too. I also added 3ffe:280::1
address for zatoka and am sending aggregated 3ffe:280::/40. Current filter:

! to SICS
access-list 4 permit 3ffe:280::/40
access-list 4 deny   3ffe:200::/24 refine
!access-list 4 deny  3ffe:902::/32
access-list 4 deny   3f00::/8
access-list 4 permit all

allows to send 2 (aggregated) routes:

  P Pref Time     Destination                Next Hop                 If   Path
>aB   20 00:00:17 3ffe:280::/40              ::                       lo0   i
>aB   20 00:00:07 3ffe:902::/32              ::1                      lo0   ?


Szczecin sends you (I have access to their mrt-router):

  P Pref Time     Destination                Next Hop                 If   Path
>iB   20 00:18:05 3ffe:200:f::/48            3ffe:200:f::2            sit3  i
>iB   20 00:06:37 3ffe:280::/40              3ffe:902:5::2            sit3 9999 8664 i   <----- now this one could be accepted from me directly too
> B   20 00:15:54 3ffe:902:1::/48            3ffe:902:1::2            sit5 65432 i
> C    0 00:19:04 3ffe:902:2::/48            ::                       eth0  i
>iB   20 00:18:04 3ffe:902:5::/48            3ffe:902:5::2            sit3 9999 i

but only 3ffe:200:f::/48 gets through your filter if I understand correctly.

R.