Having Followed the advice of certain denizens I have installed Protowall but am getting repeated messages in the log file saying: 2004/12/04 21:29:50 [<-] BLOCKED [!] - Destination is IANA - Multicast, IANA Reserved (239.255.255.250) [protocol: IGMP / no destport] Since IANA seems to be the naming authority issuing IP addresses, why does my PC want to talk to them?