[LUGOS-SEC] netfilter MARK match

Borut Mrak b at aufbix.org
Tue Feb 5 19:30:39 CET 2002


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On Tuesday 05 February 2002 19:23, you wrote:
> Na eni strani jih oznacim (din. IP):
> iptables -t mangle -A OUTPUT -o ppp0 -p tcp -d 1.2.3.4 --dport 555 \
>    -j MARK --set-mark 666
> Na drugi strani (1.2.3.4) pa spustim skozi:
> iptables -t mangle -A PREROUTING -m mark --mark 666 -i eth0 -p tcp \
>    --dport 555 -j ACCEPT
>
> Stvar mi ne deluje. Kje sem falil?

Pri tem, da MARK deluje samo na eni masini, ne pa cez mrezo ;-]

Tole kar pocnes lahko resis z nekaksno obliko avtentikacije...cetudi bi 
fwmark deloval cez mrezo, bi to ne bilo dobro, ker si lahko tale mark nastavi 
vsakdo. Kaksen IPsec ti bo resil zadevo..

lp,

- -- 
Borut
b at aufbix.org
- ------------
Monogamy leaves a lot to be desired.
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