Copyright (c) 2002 Dug Song <dugsong@monkey.org>

$Id: fragtest.8,v 1.2 2002/02/24 04:41:44 dugsong Exp $

fragtest - test IP fragment reassembly behaviour fragtest " TESTS ... host" fragtest probes the remote host to determine its TCP/IP stack behaviour.

The TESTS may include any of the following (or may be specified as all to perform them all):

ping Send an ICMP echo request to the host.

ip-opt Send ICMP echo requests with different IP options, to see which IP options are supported.

frag Send an ICMP echo request as 8-byte fragments.

frag-new Send an ICMP echo request as 8-byte fragments with an overlapping 16-byte fragment, favoring newer data in reassembly.

frag-old Send an ICMP echo request as 8-byte fragments with an overlapping 16-byte fragment, favoring older data in reassembly.

frag-timeout Send an ICMP echo request as 8-byte fragments, omitting the last fragment, and wait for an ICMP time-exceeded-in-reassembly reply.

fragroute (8) Dug Song <dugsong@monkey.org> Firewalls or other filtering network devices may block IP fragments, packets with IP options, ICMP echo traffic, etc.