North American Network Operators Group
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Re: Access to the Internic Blocked

  • From: Vadim Antonov
  • Date: Thu Aug 22 21:54:21 1996 
Thre reason why traceroute uses UDP instead of ICMP is
very simple -- there are a lot of broken-as-designed
unices which either do not provide non-superuser access
to harmless ICMP facilities, or cannot trace replies back
to originating process.

I'd rather fix operating systems than leaving a nice big
vulnerability in the network.

--vadim