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UUnet routing "problem"

  • From: Sorin CONSTANTINESCU
  • Date: Thu Sep 26 14:01:03 2002


Hi,

This morning we've discovered that one of our IP's was routed somewhere
towards an ALTER.NET customer.

All the "experiments" i'm going to show you are done from
route-server.exodus.net.

a show ip bgp 193.231.236.41 show that the originator of the IP Block from
where 193.231.236.41 belongs is AS8708 (RDSNET ROMANIA).

BGP routing table entry for 193.231.224.0/20, version 4439795
Paths: (8 available, best #1)
  Not advertised to any peer
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.40.63 from 209.1.40.63 (209.1.40.63)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate, best
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.40.129 from 209.1.40.129 (209.1.40.129)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.220.242 from 209.1.220.242 (209.1.220.242)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.220.134 from 209.1.220.134 (209.1.220.134)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.40.141 from 209.1.40.141 (209.1.40.141)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.220.7 from 209.1.220.7 (209.1.220.7)
      Origin IGP, localpref 1000, valid, internal, atomic-aggregate
  3561 701 702 8708, (aggregated by 8708 193.231.191.33)
    209.1.220.7 from 209.1.220.84 (209.1.220.7)

But, somewhere on the way,

route-server.exodus.net>tr 193.231.236.41

Type escape sequence to abort.
Tracing the route to FuckingLiveShow.home.ro (193.231.236.41)

  1 dcr01-p0-1.sntc08.exodus.net (209.1.169.182) 0 msec 0 msec 0 msec
  2 ibr01-g0-0.sntc08.exodus.net (66.35.194.197) 0 msec 0 msec 0 msec
  3 dcr2-so-3-0-0.SantaClara.cw.net (208.172.156.197) [AS 3561] 0 msec 0
msec 4 msec
  4 agr3-so-2-0-0.SantaClara.cw.net (208.172.156.138) [AS 3561] 4 msec
    agr4-so-6-0-0.SantaClara.cw.net (208.172.156.158) [AS 3561] 0 msec
    agr3-so-2-0-0.SantaClara.cw.net (208.172.156.138) [AS 3561] 4 msec
  5 acr1-loopback.SanFrancisco.cw.net (206.24.210.61) [AS 3561] 4 msec 4
msec 4 msec
  6 bpr2.SanJoseEquinix.cw.net (206.24.210.27) [AS 3561] 4 msec 4 msec 8
msec
  7 cable-and-wireless-peering.SanJoseEquinix.cw.net (208.173.55.2) [AS
3561] 4 msec
    cable-and-wireless-peering.SanJoseEquinix.cw.net (208.173.55.46) [AS
3561] 224 msec
    cable-and-wireless-peering.SanJoseEquinix.cw.net (208.173.55.2) [AS
3561] 4 msec
  8 POS2-0.XR2.SJC7.ALTER.NET (152.63.56.166) [AS 701] 8 msec 4 msec 4
msec
  9 POS5-0.XR2.SJC1.ALTER.NET (152.63.52.141) [AS 701] 8 msec 4 msec 4
msec
 10 0.so-0-0-0.XL2.SJC1.ALTER.NET (152.63.55.126) [AS 701] 8 msec 4 msec 4
msec
 11 0.so-3-0-0.TL2.SAC1.ALTER.NET (152.63.54.10) [AS 701] 8 msec 8 msec 8
msec
 12 0.so-4-0-0.TL2.DCA6.ALTER.NET (152.63.10.61) [AS 701] 84 msec 84 msec
84 msec
 13 0.so-6-0-0.XL2.DCA6.ALTER.NET (152.63.38.74) [AS 701] 88 msec 88 msec
88 msec
 14 0.so-7-0-0.XR2.DCA6.ALTER.NET (152.63.38.90) [AS 701] 88 msec 88 msec
88 msec
 15 284.at-2-0-0.CL2.IAD5.ALTER.NET (152.63.35.58) [AS 701] 88 msec 88
msec 92 msec
 16 501.ATM5-0.GW5.IAD5.ALTER.NET (152.63.43.141) [AS 701] 92 msec 92 msec
88 msec
 17 xa-gw2.customer.alter.net (157.130.13.70) [AS 701] 120 msec 92 msec 92
msec
 18 s1.home.ro (193.231.236.41) [AS 8708] 92 msec 92 msec 92
msec
route-server.exodus.net>

Has anyone ever experienced this kind of problems? We've written to UUNET
Europe, and they've answered to us that it's a problem at UUNET USA. It's
been almost 8 hours since they replied to us, but the problem persists.


PS: If there are any technicians from UUNET on this list, please give us
a hand.

Thank you,
---
Sorin Constantinescu				Tel: +402 13 010 850
Network Administrator				Fax: +402 13 010 892
RDS Bucharest					Email: adonay@rdsnet.ro

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