Is 213.215.28.0/23 (AS 49463) announced through AS 12670 and AS 13193

Sat Sep 5 14:30:59 UTC 2009

On Sat, 2009-09-05 at 16:04 +0200, Laurent CARON wrote:
Hi Laurent,

> I did set-up this netblock behind two pipes.
> 
> One on AS13193 (which is working flawlessy), and ahother on AS12670 
> (which I doubt of).
> 
> Can please any of you tell me if from your location 213.215.28.0 is 
> reachable through AS12670 ?

We, Novso AS25358, see only your route through Nerim AS13193.

frpar-msr4>sh ip bgp 213.215.28.0
BGP routing table entry for 213.215.28.0/23, version 16779890
Paths: (3 available, best #3, table Default-IP-Routing-Table)
  Not advertised to any peer
  13193 49463
    194.68.129.181 from 194.68.129.181 (194.79.131.249)
      Origin IGP, metric 240, localpref 200, valid, external
      Community: 25358:2000 25358:2020 25358:7000 25358:8000 25358:9000
  13193 49463, (received-only)
    194.68.129.181 from 194.68.129.181 (194.79.131.249)
      Origin IGP, metric 100, localpref 100, valid, external
  13193 49463, (received & used)
    195.140.149.5 (metric 200) from 195.140.149.5 (195.140.149.5)
      Origin IGP, metric 200, localpref 200, valid, internal, best
      Community: 25358:2000 25358:2050 25358:7000 25358:8000 25358:9000

Our peering session with Completel AS12670:
frpar-msr4>sh ip bgp sum | i 12670
194.68.129.188  4 12670  104682  103276 19335046    0    0 1d08h
195
frpar-msr4>sh ip bgp nei 194.68.129.188 received-routes | i 213.215.28.0
frpar-msr4>

Our peering session with Nerim AS13193:
frpar-msr4>sh ip bgp sum | i 13193
194.68.129.181  4 13193  103945  103222 19335046    0    0 1d08h
33

frpar-msr4>sh ip bgp nei 194.68.129.181 received-routes | i 213.215.28.0
*  213.215.28.0/23  194.68.129.181         100             0 13193 49463
i
frpar-msr4>

Completel AS12670 don't announce your route 213.215.28.0/23 to their
peers so your route is only visible through Nerim AS13193.

Did you announce your route 213.215.28.0/23 to Completel AS12670 ?

Best Regards,

-- 
Nicolas DEFFAYET (AS25358)