On Fri, Dec 06, 2002 at 09:08:33AM +0100, [EMAIL PROTECTED] wrote: > Hi > > i have a strange communication between two of my Linux server, it's ICMP > packet on port 3. > Do you know what it could be ?
ICMP doesn't have ports. ICMP type 3 are IP error messages. Type 3 code 4 is used as part of PMTU discovery and should be considered normal. Search google for more info. There is probably something that used UDP/TCP port 3, but its not very popular. Port scanning would be my guess in that case. ----------------------------------------------------------------------- __o Bradley Arlt Security Team Lead _ \<_ [EMAIL PROTECTED] University Of Calgary (_)/(_) I should be biking right now. Computer Science
