Reachability of a host in CIDR-The Netherlands
BGPD, here are some results, FYI, regarding the reachibility of my laptoy living in a CIDR-block of which the individual C net is not explicitly announced. The results below are a snapshot of this weekend and yesterday. Some pattern is visible. If you want to test the reachability of ejpc5.wind.surfnet.nl, please do so, I leave it on until 5:30 pm local time (4:30 pm UTC, or 11:30 am EST). --- Start of table NET ASN REGIONAL COUNTRY RESULT ------------ -------- -------------------- ------------- --------- 133.11.0.0 AS 372 NSN-AMES-AS JP Unreach 128.250.0.0 AS 372 NSN-AMES-AS AU Unreach 130.217.0.0 AS 372 NSN-AMES-AS NZ Unreach 128.171.0.0 AS 372 NSN-AMES-AS Hawaii, US Unreach 192.12.192.0 AS 137 GARR IT Reach (%) 130.59.0.0 AS 559 SWITCH CH Reach (*) 158.152.0.0 AS2529 Demon Internet Ltd UK Reach (&) 193.63.94.0 AS 786 JANET IP UK Reach (&) 193.1.193.0 AS1213 HEAnet IE Reach (#) 193.124.134.0 AS2683 RADIO-MSU Network RU Reach (^) 192.36.125.0 AS1653 SUNET SE Reach 130.43.0.0 AS 714 APPLE-ENGINEERING-AS US Reach 192.87.45.0 AS1104 NIKHEF-H NL Reach 147.32.1.0 AS2605 CESNET backbone B CZ Reach 130.206.0.0 AS 766 RedIRIS ES Reach (*) Path from mentioned network to laptoy is through Washington2.Dante.net and icm-dc-1-E0.icp.net. (%) Path from mentioned network to laptoy is through ESnet and NSFnet (San Francisco) and Washington2.Dante.net. (&) Path from mentioned network to laptoy is through ICM. (#) Path from mentioned network to laptoy is through Ebone (although a direct path through EMPB exists). (^) Between Hamburg and Amsterdam is a non-revealed path (all routers return "*" in the traceroute. --- End of table __ Erik-Jan.
Erik-Jan Bos <erik-jan.bos@SURFnet.nl> writes:
(^) Between Hamburg and Amsterdam is a non-revealed path (all routers return "*" in the traceroute.
This might be caused by asymmetric routes.
Erik,
NET ASN REGIONAL COUNTRY RESULT ------------ -------- -------------------- ------------- --------- 133.11.0.0 AS 372 NSN-AMES-AS JP Unreach 128.250.0.0 AS 372 NSN-AMES-AS AU Unreach 130.217.0.0 AS 372 NSN-AMES-AS NZ Unreach 128.171.0.0 AS 372 NSN-AMES-AS Hawaii, US Unreach
What is the IP address you're using? All of these should be reachable. Thanks, Jeff
Erik-Jan,
NET ASN REGIONAL COUNTRY RESULT ------------ -------- -------------------- ------------- --------- 133.11.0.0 AS 372 NSN-AMES-AS JP Unreach 128.250.0.0 AS 372 NSN-AMES-AS AU Unreach 130.217.0.0 AS 372 NSN-AMES-AS NZ Unreach 128.171.0.0 AS 372 NSN-AMES-AS Hawaii, US Unreach
These now should be reachable to you, 192.87.108/22 was included in the reconfiguration of ANS' network done this morning. Also, many fewer packets should end up at Washington2.Dante.net since the default has been eliminated. Dennis
Dennis,
These now should be reachable to you, 192.87.108/22 was included in the reconfiguration of ANS' network done this morning. Also, many fewer packets should end up at Washington2.Dante.net since the default has been eliminated.
Thank you very much for the explanation. I'll sleep much better now (whenever I get to sleep tonight :-( ). Networks MUST be configured in the Merit/NSFnet PRDB before NSI will route to them. Thanks, Jeff
I just did this traceroute from a router in Hawaii (net 128.171) to the host 192.87.111.59. Also, I have included below the routing table entry that the router ARC2.NSN.NASA.GOV is using. This has all been in place since last Saturday. I believe that routing to PACCOM (i.e. NZ, AU, HK, KR, TISN, WIDE, Hawaii) is fully operational. If you still see a problem, I'd appreciate any specifics you have. Either send them to the entire list or me directly. Thanks, Jeff Script started on Tue Mar 22 04:02:10 1994 dscs[101]# traceroute -g.128.171.3.20 192.87.111.59 traceroute to 192.87.111.59 (192.87.111.59), 30 hops max, 40 byte packets 1 arc-nas-gw (128.102.32.3) 3 ms 3 ms 3 ms 2 ARC2.NSN.NASA.GOV (192.203.230.11) 3 ms 3 ms 3 ms 3 imp.Hawaii.Net (128.171.3.20) 60 ms 72 ms 56 ms 4 ARC2.NSN.NASA.GOV (132.160.249.2) 97 ms 57 ms 62 ms 5 t3-0.enss144.t3.nsf.net (192.203.230.253) 61 ms 69 ms 57 ms 6 t3-1.San-Francisco-cnss9.t3.ans.net (140.222.9.2) 58 ms 60 ms 91 ms 7 mf-0.San-Francisco-cnss8.t3.ans.net (140.222.8.222) 59 ms 61 ms 63 ms 8 t3-0.Chicago-cnss24.t3.ans.net (140.222.24.1) 106 ms 219 ms 106 ms 9 t3-0.Cleveland-cnss40.t3.ans.net (140.222.40.1) 122 ms 129 ms 121 ms 10 t3-1.New-York-cnss32.t3.ans.net (140.222.32.2) 127 ms 125 ms 127 ms 11 t3-1.Washington-DC-cnss56.t3.ans.net (140.222.56.2) 138 ms 131 ms 136 ms 12 mf-0.Washington-DC-cnss58.t3.ans.net (140.222.56.194) 138 ms 130 ms 130 ms 13 t3-0.enss145.t3.ans.net (140.222.145.1) 131 ms 131 ms 149 ms 14 192.203.229.245 (192.203.229.245) 139 ms 132 ms 139 ms 15 icm-dc-2-H0-T3.icp.net (192.157.65.121) 135 ms 139 ms 221 ms 16 icm-dante-E0.icp.net (192.157.65.226) 137 ms 139 ms 149 ms 17 194.41.0.17 (194.41.0.17) 706 ms 707 ms 701 ms 18 Amsterdam2.router.surfnet.nl (192.87.4.24) 802 ms 711 ms 710 ms 19 Amsterdam1.router.surfnet.nl (145.41.9.129) 741 ms 812 ms 758 ms 20 Utrecht1.router.surfnet.nl (145.41.1.194) 720 ms 725 ms 733 ms 21 ejpc5.wind.surfnet.nl (192.87.111.59) 1157 ms 730 ms 731 ms Copyright Notice: Copyright 1985-1994 Proteon, Inc. Copyright Notice: Copyright 1984 - 1987, 1989 by J. Noel Chiappa MOS Operator Control +p 0 IP>r 192.87.111.59 Destination: 192.87.108.0 Mask: 255.255.252.0 Route type: BGP Distance: 0 Age: 0 Tag: 690 Next hop(s): 192.203.230.253 (FDDI/0) script done on Tue Mar 22 04:03:07 1994
participants (5)
-
Daniel Karrenberg -
Dennis Ferguson -
Dmitry Avdeyev -
Erik-Jan Bos -
jeff＠nsipo.nasa.gov