salut,

Le Jeudi 3 Avril 2003 14:37, Pierre BETOUIN a �crit :
> iptables -A INPUT -i ppp0 --protocol tcp --destination-port 25 -j ACCEPT
> # Les paquets entrent sur le 25...
>
> iptables -A OUTPUT -i ppp0 --protocol tcp --source-port 25 -j ACCEPT
> # Les paquets sortent pas le 25...

Or on a deja eu cette proposition :

> iptables -A OUTPUT -o ppp0 --protocol tcp --source-port 25 -j ACCEPT

Comme le man iptables indique :

       -i, --in-interface [!] name
              Name  of an interface via which a packet is going to be received
              (only for packets entering the  INPUT,  FORWARD  and  PREROUTING
              chains).   When  the  "!"  argument is used before the interface
              name, the sense is inverted.  If the interface name  ends  in  a
              "+",  then any interface which begins with this name will match.
              If this option is omitted, any interface name will match.

       -o, --out-interface [!] name
              Name of an interface via which a packet is going to be sent (for
              packets  entering  the  FORWARD, OUTPUT and POSTROUTING chains).
              When the "!" argument is used before  the  interface  name,  the
              sense  is  inverted.   If the interface name ends in a "+", then
              any interface which begins with this name will match.   If  this
              option is omitted, any interface name will match.


alors es-tu sur de ton option -i pour ton interface de sortie ? et si oui, 
alors j'aimerai bien comprendre la difference ...


                XB.

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