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Strange IPv4 traceroute to uschi01
![[us]](/s/countries/us.gif) Shadow Hawkins on Tuesday, 18 July 2006 10:57:51
I'm on a cable modem in San Diego, CA at the moment, and this traceroute to the Chicago POP is just bizarre. Why the heck is is routing through the UK and back?
$ /usr/sbin/traceroute uschi01.sixxs.net
traceroute to uschi01.sixxs.net (66.39.212.2), 30 hops max, 38 byte packets
1 192.168.1.1 (192.168.1.1) 0.838 ms 1.374 ms 3.217 ms
2 10.80.0.1 (10.80.0.1) 14.500 ms 11.198 ms 11.865 ms
3 cvsdca1-rtr1-ge2-4.san.rr.com (24.25.196.57) 12.370 ms 12.097 ms 14.855 ms
4 wcsdca1-gsr1-srp0.san.rr.com (24.25.196.1) 8.511 ms 58.796 ms 11.554 ms
5 tustca1-rtr1-s0-0-2.san.rr.com (24.25.193.18) 15.527 ms 14.818 ms 12.598 ms
6 gig2-0-0.lsanca1-rtr1.socal.rr.com (66.75.161.157) 14.863 ms 16.754 ms 16.850 ms
7 pop1-las-P5-0.atdn.net (66.185.143.5) 23.410 ms 17.900 ms 16.404 ms
8 p16-1-2-3.r21.lsanca03.us.bb.gin.ntt.net (129.250.9.73) 38.362 ms 23.612 ms 16.276 ms
9 p64-2-1-0.r21.mlpsca01.us.bb.gin.ntt.net (129.250.5.22) 25.627 ms 26.629 ms 26.752 ms
MPLS Label=724850 CoS=2 TTL=1 S=1
MPLS Label=282864 CoS=0 TTL=1 S=0
10 p64-0-0-0.r20.sttlwa01.us.bb.gin.ntt.net (129.250.4.22) 41.676 ms 55.040 ms 41.059 ms
MPLS Label=676336 CoS=2 TTL=1 S=1
MPLS Label=282864 CoS=0 TTL=2 S=0
11 xe-1-3-0.r21.sttlwa01.us.bb.gin.ntt.net (129.250.4.17) 107.099 ms 43.061 ms 40.163 ms
MPLS Label=527888 CoS=2 TTL=1 S=1
MPLS Label=282864 CoS=0 TTL=3 S=0
12 p64-0-0-0.r21.nycmny01.us.bb.gin.ntt.net (129.250.5.17) 99.296 ms 104.493 ms 103.355 ms
MPLS Label=110673 CoS=2 TTL=1 S=1
MPLS Label=282864 CoS=0 TTL=4 S=0
13 p64-2-1-0.r22.londen03.uk.bb.gin.ntt.net (129.250.2.39) 168.908 ms 169.823 ms 172.799 ms
MPLS Label=550640 CoS=2 TTL=1 S=1
MPLS Label=282864 CoS=0 TTL=5 S=0
14 xe-0-2-0.r23.londen03.uk.bb.gin.ntt.net (129.250.2.66) 174.004 ms 190.713 ms 168.921 ms
MPLS Label=282864 CoS=2 TTL=1 S=1
15 xe-3-1.r01.londen03.uk.bb.gin.ntt.net (129.250.2.46) 171.784 ms 170.452 ms 181.008 ms
16 catalyst2-0.a01.londen03.uk.ra.gin.ntt.net (213.130.48.214) 251.175 ms 168.586 ms 167.899 ms
17 crt1-the-gi0-1.router.uk.catalyst2.net (84.18.192.1) 168.774 ms 173.185 ms 168.971 ms
18 * * *
19 52.ge0-0.cr2.lhr1.uk.occaid.net (216.93.254.150) 186.575 ms 228.136 ms 178.377 ms
20 ae0-23.cr1.ewr1.us.occaid.net (216.93.254.146) 170.467 ms 173.183 ms 184.719 ms
21 dontmatter.midphase.com (205.234.148.199) 179.071 ms 183.116 ms 179.091 ms
22 uschi01.sixxs.net (66.39.212.2) 180.756 ms 180.252 ms 180.808 ms
Strange IPv4 traceroute to uschi01
Seems that RR uses NTT as an upstream and that at the moment you looked NTT only knew how to reach the prefix where uschi01 is located over the UK... odd.
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![[ch]](/s/countries/ch.gif)
on Tuesday, 18 July 2006 11:23:45
Posting is only allowed when you are