outgoing interface's MTU minus 40). Of course, it can only be used
in conjunction with
.BR "-p tcp" .
+It is only valid in the
+.BR mangle
+table.
.br
This target is used to overcome criminally braindead ISPs or servers
which block ICMP Fragmentation Needed packets. The symptoms of this
Workaround: activate this option and add a rule to your firewall
configuration like:
.nf
- iptables -A FORWARD -p tcp --tcp-flags SYN,RST SYN \\
+ iptables -t mangle -A FORWARD -p tcp --tcp-flags SYN,RST SYN \\
-j TCPMSS --clamp-mss-to-pmtu
.fi
.TP