Next_Hop stuff in prtraceroute
- Date: Fri, 14 Jan 94 17:00:19 +0100
Tony,
here I am again about the next hop stuff... Look at this:
survis bos % prtraceroute ns.eu.net
traceroute to ns.eu.net (192.16.202.11) with AS and policy additions
1 AS1103 surrogate.surfnet.nl 192.87.108.1 [I]
2 AS1103 Utrecht1.router.surfnet.nl 145.41.49.161 [I]
3 AS1103 Amsterdam1.router.surfnet.nl 145.41.1.193 [I]
4 AS 286 Amsterdam.NL.EU.net 192.87.4.20 [?NH 1128]
5 AS 286 ns.EU.net 192.16.202.11 [I]
AS Path followed: 1103 [?1128?] 286
AS1103 = SURFnet IP
AS1128 = EuropaNET PoP Amsterdam
AS 286 = EUnet-central AS
At a first glance this look okay, the SURFnet box gets the next hop from
the EuropaNET box (living is AS1128).
But, there is no peering between AS1128 and AS286 at the moment. The
box in AS1128 gets the next hop from AS1755. This means it can be a
"recursive" process (not the correct name for it but what I mean is
that you cannot stop at 1 iteration).
Shouldn't line 4 of the above output be like this:
4 AS 286 Amsterdam.NL.EU.net 192.87.4.20 [?NH 1128 1755]
__
Erik-Jan.