From: "Alex Samad" <alex@xxxxxxxxxxxx>
> hi
>
> sorry missed the previous bits of the thread, could you post the relevant info,
> interested to see how this works and why you would pick it over the multipath
> method
Please note my checking of marked traffic is not ( according to the earlier posts )
> iptables -t mangle .... -m mark --mark ! 0 -j ACCEPT
However, it is :-
> iptables -t mangle .... -m mark ! --mark 0 -j ACCEPT
I leave it to you guys to decide which is the correct syntax.
The code below is taken from part of my bigger code :-
Cheers.
---------------------code-------------------------------------------
LINK1_MARK=5
LINK2_MARK=7
OUTSIDE_DEV_WEIGHT=0.5
INSIDE_DEVICE=eth0
OUTSIDE_DEVICE=eth1
OUTSIDE_DEVICE2=eth2
SAVEMARK="-m mark ! --mark 0 -j CONNMARK --save-mark"
ACCEPTMARK="-m mark ! --mark 0 -j ACCEPT"
SETMARK1="-j MARK --set-mark ${LINK1_MARK}"
SETMARK2="-j MARK --set-mark ${LINK2_MARK}"
#
#first, restore and accept the mark if there is any
iptables -t mangle -A OUTPUT -j CONNMARK --restore-mark
iptables -t mangle -A PREROUTING -j CONNMARK --restore-mark
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
#handle inbound for link1
iptables -t mangle -A PREROUTING -i ${OUTSIDE_DEVICE} ${SETMARK1}
iptables -t mangle -A PREROUTING -i ${OUTSIDE_DEVICE} ${SAVEMARK}
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
#handle inbound for link2
iptables -t mangle -A PREROUTING -i ${OUTSIDE_DEVICE2} ${SETMARK2}
iptables -t mangle -A PREROUTING -i ${OUTSIDE_DEVICE2} ${SAVEMARK}
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
# (other features implementation snipped )
#handle recent outbound
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} -m recent --name link1 \
--update --second 300 ${SETMARK1}
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} -m recent --name link2 \
--update --second 300 ${SETMARK2}
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} ${SAVEMARK}
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
#
#non-recent outbound randomly allocated
#
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} \
-m statistic --mode random --probability ${OUTSIDE_DEV2_WEIGHT} \
-m recent --name link2 --set ${SETMARK2}
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} ${SAVEMARK}
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} \
-m recent --name link1 --set ${SETMARK1}
iptables -t mangle -A PREROUTING -i ${INSIDE_DEVICE} ${SAVEMARK}
iptables -t mangle -A PREROUTING ${ACCEPTMARK}
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