FRAGTEST(8) System Manager's Manual FRAGTEST(8) NAME fragtest - test IP fragment reassembly behaviour SYNOPSIS fragtest TESTS ... host DESCRIPTION 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. SEE ALSO fragroute(8) AUTHOR Dug Song <dugsong@monkey.org> BUGS Firewalls or other filtering network devices may block IP fragments, pack- ets with IP options, ICMP echo traffic, etc. FRAGTEST(8)
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