Firewall problem.

[Pavel Kankovsky]

On Mon, 27 Apr 1998, Borek Lupomesky wrote:

> Traceroute snad pouzivate take ICMP ECHO_REQ, ne?

Ne nepouziva. Traceroute dela to, ze posila UDP na nejake porty kolem 2^15
(kdo chce vedet presna cisla, ten at si to precte ve zdrojacich nebo
vycmucha na siti) a hlida jestli se to vrati s "time exceeded" nebo
s "port unreachable".

--Pavel Kankovsky aka Peak  [ Boycott Microsoft--http://www.vcnet.com/bms ]