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Re: next hop packet loss
From: Tom Hill <tom () ninjabadger net>
Date: Mon, 06 Aug 2012 22:50:43 +0100

Hi Jim,

On 06/08/12 22:27, Jim Ray wrote:
What is the best way to solve this type of problem?

It's not a problem, it's checkpoint purporting to be 'secure' when all they're doing is blocking ICMP outright, seemingly.

If I try 'tcptraceroute' (from Linux) it works just fine, bare the Above.net hop in the middle that doesn't respond - ignore.

$ sudo tcptraceroute -n checkpoint.com
traceroute to checkpoint.com (216.200.241.66), 30 hops max, 60 byte packets
 1  81.187.203.81  0.719 ms  1.050 ms  1.298 ms
 2  90.155.53.54  30.184 ms  31.604 ms  32.370 ms
 3  90.155.53.43  33.891 ms  35.072 ms  36.021 ms
 4  85.91.238.217  37.016 ms  38.236 ms  39.215 ms
 5  85.91.224.10  40.226 ms  41.358 ms  42.354 ms
 6  212.187.200.145  164.713 ms  164.102 ms  164.020 ms
 7  4.69.139.99  45.316 ms  194.042 ms  194.088 ms
 8  64.125.14.17  194.297 ms  193.943 ms  193.558 ms
 9  64.125.31.198  194.304 ms  194.462 ms  193.560 ms
10  * * *
11  64.125.26.37  288.267 ms  284.237 ms  166.340 ms
12  64.125.24.38  178.571 ms  179.467 ms  156.769 ms
13  64.125.28.238  148.002 ms  147.244 ms  147.501 ms
14  64.125.26.141  206.010 ms  205.574 ms  205.426 ms
15  64.125.28.57  201.753 ms  172.439 ms  174.169 ms
16  64.124.201.230  176.866 ms  172.412 ms  172.510 ms
17  208.185.174.208  173.668 ms  174.310 ms  173.999 ms
18  216.200.241.66 <syn,ack>  172.504 ms  172.386 ms  172.700 ms


Tom


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