[plug] Need help deciphering tcpdump

[Cameron Patrick]

G'day,

Can anyone here explain what the following lines of tcpdump output mean?
In particular I'm unsure why the port number has a z in front of it
("z3950"); but mainly want to know what the icmp message below it means
and how to fix it.

15:54:27.906400 134.243.85.3.z3950 > 130.95.39.9.1040: . 773:2153(1380) ack 597 win 64860 (DF)
15:54:27.906573 130.95.39.9 > 134.243.85.3: icmp: 130.95.39.9 unreachable - need to frag (mtu 1400) [tos 0xc0]

Cameron.

_______________________________________________
plug mailing list
plug at plug.linux.org.au
http://mail.plug.linux.org.au/cgi-bin/mailman/listinfo/plug