here is a typical response from my new home FIOS network:
H:\Users\rdvista>tracert fubar.com
Tracing route to fubar.com [66.238.90.231]over a maximum of 30 hops:
1 <1 ms <1 ms <1 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 2 5 ms 4 ms 6 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 3 4 ms 4 ms 5 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 4 11 ms 11 ms 11 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 5 13 ms 14 ms 13 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 6 14 ms 14 ms 14 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 7 14 ms 16 ms 14 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 8 15 ms 16 ms 15 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 9 84 ms 85 ms 85 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 10 86 ms 86 ms 85 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 11 85 ms 85 ms 85 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 12 99 ms 97 ms 95 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231] 13 88 ms 88 ms 88 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231]
Trace complete.
Wierd huh? Sniff/wireshark capture shows the time to live exceeded is always 66.238.90.231, from the first probe with TTL = 1 until the end. Someone (the router?) has to be changing the value of the source of the time exceeded packet. Why? How can it be fixed?
FYI FIOS phone support does not know what a traceroute is. Perhaps there is someone on this forum from Verizon who can help.
(for completeness, here is a tracert to the same site from other than my FIOS home network.)
1 <1 ms <1 ms <1 ms vl10.eh-core-2.gw.xxx.edu [136.142.xxx.yyy] 2 <1 ms <1 ms <1 ms te1-1.cl-core-2.gw.xxx.edu [136.142.xxx.yy] 3 <1 ms <1 ms <1 ms ge-2-0-0-712.externals-cl.gw.xxx.edu [136.142.x.yyy] 4 <1 ms <1 ms <1 ms car-mi.xxxx.net [147.73.16.172] 5 * * 28 ms cbr-mi-core-ge-0-1-0-16.xxxx.net [147.73.xyx.yyx] 6 4 ms 3 ms 3 ms ge-3-3-0.405.ar2.cle1.gblx.net [208.49.224.197]
7 11 ms 12 ms 57 ms te9-2-10G.ar2.CHI2.gblx.net [67.17.109.114] 8 12 ms 12 ms 12 ms 206.111.2.13.ptr.us.xo.net [206.111.2.13] 9 13 ms 13 ms 15 ms 207.88.12.141.ptr.us.xo.net [207.88.12.141] 10 13 ms 13 ms 13 ms ge7-0-0d0.rar1.chicago-il.us.xo.net [65.106.1.41] 11 64 ms 76 ms 36 ms p6-0-0.rar2.denver-co.us.xo.net [65.106.0.25] 12 37 ms 36 ms 37 ms p0-0-0d0.RAR1.Denver-CO.us.xo.net [65.106.1.73]
13 72 ms 72 ms 72 ms p6-0-0.rar1.sanjose-ca.us.xo.net [65.106.0.21] 14 73 ms 72 ms 72 ms p0-0-0.MAR1.Fremont-CA.us.xo.net [65.106.5.134]
15 72 ms 72 ms 73 ms p0-0.chr1.fremont-ca.us.xo.net [207.88.80.178] 16 80 ms 80 ms 191 ms 207.88.3.230.ptr.us.xo.net [207.88.3.230] 17 73 ms 72 ms 72 ms 66.238.90.231.ptr.us.xo.net [66.238.90.231]