>> "PC" == Pere Camps <pere@casal.upc.es> writes: PC> Dec 7 13:52:11 casal in.telnetd[27798]: warning: can't get client PC> address: No route to host PC> Dec 7 13:52:12 casal in.telnetd[27798]: refused connect from PC> unknown PC> If my machine has a telnet request, then my machine knows the IP PC> (at least) of the machine which requests it, no? Is this you connecting? Maybe it is an attacker transmitting a bogus tcp package or such. Ciao, Martin