Re: Routing problem

Hi, all I have a routing problem inside my network when i do a traceroute to anybody in the world i get lost some where on the way.

1: tash.one2net.co.ug (41.220.14.30) 0.994ms pmtu 1500 1: 41.220.14.2 (41.220.14.2) 72.276ms 2: 41.220.14.1 (41.220.14.1) asymm 1 52.407ms 3: 217-212-242-2.customer.teliacarrier.com (217.212.242.2) asymm 2 149.408ms 4: 217-212-242-1.customer.teliacarrier.com (217.212.242.1) asymm 3 607.288ms 5: kbn-b1-link.telia.net (213.248.97.89) asymm 4 602.379ms 6: kbn-bb2-pos0-2-0.telia.net (213.248.65.17) 600.423ms 7: hbg-bb2-pos5-0-0.telia.net (213.248.65.125) 574.590ms 8: ffm-bb2-pos7-0-0.telia.net (213.248.65.121) 579.431ms 9: ffm-b3-pos4-3-0.telia.net (213.248.64.162) 592.477ms 10: france-telecom-02189-ffm-b3.telia.net (213.248.77.206) asymm 9 723.994ms 11: no reply 12: so-0-1-0-0.loncr4.London.opentransit.net (193.251.154.89) asymm 11 621.402ms 13: no reply 14: no reply 15: no reply 16: no reply 17: no reply 18: no reply 19: no reply 20: no reply 21: no reply 22: no reply 23: no reply 24: no reply 25: no reply 26: no reply 27: no reply 28: no reply 29: no reply 30: no reply 31: no reply Too many hops: pmtu 1500 Resume: pmtu 1500 napster@tash:~> But i finally view the page. When i tried looking Glassess from outside in the world i realised that the moment i hit the router interface to the external i can't see any of the addresses inside my network. Query: bgp Addr: 41.220.14.30

BGP routing table entry for 41.220.14.0/23, version 118631772 Paths: (2 available, best #2, table Default-IP-Routing-Table) Not advertised to any peer 1299 29032, (received & used) 64.230.195.152 (metric 2380) from 206.108.96.18 (206.108.96.18) Origin incomplete, metric 0, localpref 110, valid, internal Community: 577:55 577:5602 577:11000 577:21900 Originator: 64.230.195.152, Cluster list: 206.108.96.18,

206.108.96.19, 206.108.96.230 1299 29032, (received & used) 64.230.195.152 (metric 2380) from 206.108.96.17 (206.108.96.17) Origin incomplete, metric 0, localpref 110, valid, internal, best Community: 577:55 577:5602 577:11000 577:21900 Originator: 64.230.195.152, Cluster list: 206.108.96.17, 206.108.96.19, 206.108.96.230 the traceroute statics from looking glasses are

Results of query: Router: bergenS-gw.uninett.no Command: trace one2net.co.ug

Translating "one2net.co.ug"...domain server (129.177.30.3) (158.38.0.168)

Translating "one2net.co.ug"...domain server (129.177.30.3) [OK]

Type escape sequence to abort. Tracing the route to one2net.co.ug (41.220.14.14)

1 bergen-gw3.uninett.no (158.37.8.3) 0 msec 0 msec 0 msec 2 bergen-gw.uninett.no (158.37.1.161) 0 msec 0 msec 0 msec 3 oslo-gw2.uninett.no (128.39.3.69) 8 msec 8 msec 8 msec 4 oslo-gw1.uninett.no (128.39.46.253) 8 msec 4 msec 4 msec 5 no-gw.nordu.net (193.10.68.101) [AS 2603] 8 msec 8 msec 4 msec 6 se-kth.nordu.net (193.10.68.29) [AS 2603] 12 msec 16 msec 16 msec 7 s-b4-link.telia.net (213.248.97.93) 16 msec 12 msec 12 msec 8 s-bb2-pos7-2-0.telia.net (213.248.66.13) 16 msec 16 msec 16 msec 9 kbn-bb2-link.telia.net (213.248.65.166) 28 msec 28 msec 32 msec 10 kbn-b1-pos14-0.telia.net (213.248.65.18) 24 msec 24 msec 28 msec 11 bushnet-111207-kbn-b1.c.telia.net (213.248.97.90) 32 msec 32 msec 32 msec 12 217-212-242-2.customer.teliacarrier.com (217.212.242.2) 576 msec 572 msec 568 msec 13 217-212-242-13.customer.teliacarrier.com (217.212.242.13) 584 msec 576 msec 572 msec 14 * * * 15 * * * and 217.212.242.13 is the router interface. external

what could be causing this. thanks for the help in advance

Reply to
Ronnie Tash
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Hi Ronnie,

It could be that the devices past the last one are not configured to respond to Traceroute. It seems more and more common today to remove all Non-Network Operational Device (IE all Servers) from replying to a Traceroute or Ping, and to only allow Network specific devices to respond.

Good luck..............pk.

Reply to
Peter

Thanks Peter.

Reply to
Ronnie Tash

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