I think this pair (marking connections with "9"):
iptables -t mangle -A OUTPUT -j MARK --set-mark 9
iptables -t mangle -A OUTPUT -j CONNMARK --set-mark 9
should be equivalent to this pair:
iptables -t mangle -A OUTPUT -j MARK --set-mark 9
iptables -t mangle -A OUTPUT -j CONNMARK --save-mark
The first pair works - I get mark=9 entries in /proc/net/ip_conntrack .
The second pair does not - I get no marks at all in ip_conntrack.
I think this pair should set packet marks from the ip_conntrack marks:
iptables -t mangle -A OUTPUT -j CONNMARK --set-mark 9
iptables -t mangle -A OUTPUT -j CONNMARK --restore-mark
It does not - the packets aren't marked:
Chain OUTPUT (policy ACCEPT 2989 packets, 395K bytes)
pkts bytes target prot opt in out source destination
1695 178K CONNMARK all -- * * 0.0.0.0/0 0.0.0.0/0 CONNMARK set 0x9
1695 178K CONNMARK all -- * * 0.0.0.0/0 0.0.0.0/0 CONNMARK restore
0 0 LOG all -- * * 0.0.0.0/0 0.0.0.0/0 MARK match 0x9 LOG flags 1 level 7 prefix `IDAMARK '
1695 178K all -- * * 0.0.0.0/0 0.0.0.0/0 MARK match 0x0
What am I missing?
Linux elm 2.6.10-1mdk #2 Sat Jan 29 13:10:11 EST
2005 i686 AMD Athlon(tm) XP 3200+ unknown GNU/Linux
--
-IAN! Ian! D. Allen Ottawa, Ontario, Canada
EMail: idallen@xxxxxxxxxx WWW: http://www.idallen.com/
College professor (Linux) via: http://teaching.idallen.com/
Support free and open public digital rights: http://eff.org/
