[Gllug] traceroute funny

[Alain Williams]

Please try the following:

	traceroute NSA.gov

I have done this from several different locations, each time the same thing happens, although the
addresses are different.

What is happening ?

For those too idle to try it here is output from one machine, note how a line 5 there are multiple machines.

# traceroute NSA.gov
traceroute to NSA.gov (12.110.110.204), 30 hops max, 38 byte packets
 1  80.68.91.1 (80.68.91.1)  621.665 ms  0.372 ms  0.296 ms
 2  rsh-vmhost.rsh-3550-1.bytemark.co.uk (80.68.81.66)  6.049 ms  0.630 ms  0.408 ms
 3  vl310-bytemark-gw-sup-tfm4.jump.net.uk (194.153.169.217)  62.968 ms  1.038 ms  1.020 ms
 4  level3-peer.jump.net.uk (194.153.169.45)  83.978 ms  84.433 ms  83.911 ms
 5  ae-0-56.bbr2.London1.Level3.net (4.68.116.162)  82.778 ms ae-0-54.bbr2.London1.Level3.net (4.68.116.98)  78.631 ms ae-0-52.bbr2.London1.Level3.net (4.68.116.34)  83.789 ms
 6  ae-0-0.bbr2.NewYork1.Level3.net (64.159.1.42)  77.653 ms as-0-0.bbr1.NewYork1.Level3.net (4.68.128.106)  77.619 ms  77.516 ms
 7  ae-23-56.car3.NewYork1.Level3.net (4.68.97.178)  77.747 ms ae-13-53.car3.NewYork1.Level3.net (4.68.97.82)  77.875 ms ae-23-56.car3.NewYork1.Level3.net (4.68.97.178)  103.009 ms
 8  att-level3-oc192.NewYork1.Level3.net (4.68.127.150)  82.620 ms ggr2-p360.n54ny.ip.att.net (192.205.33.93)  82.945 ms att-level3-oc192.NewYork1.Level3.net (4.68.127.150)  82.768 ms
 9  tbr2-p032301.n54ny.ip.att.net (12.123.3.110)  78.949 ms  78.960 ms  78.460 ms      MPLS Label=31442 CoS=5 TTL=1 S=0
10  gbr5-p40.n54ny.ip.att.net (12.122.11.26)  77.809 ms  77.278 ms  77.441 ms      MPLS Label=93 CoS=5 TTL=1 S=0
11  ar4-p3120.n54ny.ip.att.net (12.123.214.57)  119.316 ms  141.689 ms  211.501 ms
12  12.126.221.94 (12.126.221.94)  88.702 ms 12.126.221.90 (12.126.221.90)  87.254 ms  88.115 ms
13  12.110.110.132 (12.110.110.132)  89.093 ms  88.213 ms  88.988 ms
14  *


-- 
Alain Williams
Parliament Hill Computers Ltd.
Linux Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256  http://www.phcomp.co.uk/

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