From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Wilbert J. Rojas O." Subject: MASQUERADE MAIL SERVER Date: Thu, 23 Jul 2009 11:02:53 -0600 Message-ID: <4A6897BD.8000805@ideay.net.ni> Mime-Version: 1.0 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: netfilter-owner@vger.kernel.org List-ID: Content-Type: text/plain; charset="iso-8859-1"; format="flowed" To: netfilter@vger.kernel.org Hello, My Network configuration is that: ISP | | | | *eth0 200.9.190.20* *eth0:1* 200.9.190.21 *eth0:2* 200.9.190.23=20 *eth0:3* 200.9.190.24 *eth0:4* 200.9.190.25 LINUX BOX | *eth1 10.24.54.1/32* | | LAN 10.24.54.0/24 gw 10.24.54.1 | | MAIL SERVER 10.54.24.96/32 gw 10.24.54.1 All machines to get out to INTERNET through my LINUX BOX included my=20 MAIL SERVER but i want that MAIL SERVER to get out to INTERNET with IP=20 Public Address different like 200.9.190.25 and my all rest network get=20 out through 200.9.190.20 The rules i have applied like this but i don't know how to do that: /sbin/iptables -t nat -A PREROUTING -i eth1 -s 10.24.54.0/255.255.255.0= =20 -d 0/0 -p tcp --dport 80 -j REDIRECT --to-port 8080 /sbin/iptables -t nat -A PREROUTING -i eth1 -s 10.24.54.0/255.255.255.0= =20 -d 0/0 -p tcp --dport 8080 -j REDIRECT --to-port 8080 /sbin/iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE /sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d 200.9.190.20=20 --dport 25 -j DNAT --to-destination 10.24.54.96:25 /sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d 200.9.190.20=20 --dport 110 -j DNAT --to-destination 10.24.54.96:110 /sbin/iptables -t nat -A PREROUTING -p tcp -i eth0 -d 200.9.190.20=20 --dport 143 -j DNAT --to-destination 10.24.54.96:143 Any help or suggestions ?? Regards. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D Ing. Wilbert Jos=E9 Rojas Ochoa. Administrador de Sistemas Ideay ~ Equipos y Sistemas. Managua, Nicaragua. Telf. +(505) 2277-4000 Ext: 115. =46ax +(505) 2277-4411. USA: +(305) 735-8364. Cel. +(505) 8883-2877. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D --=20 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D Ing. Wilbert Jos=E9 Rojas Ochoa. Administrador de Sistemas Ideay ~ Equipos y Sistemas. Managua, Nicaragua. Telf. +(505) 2277-4000 Ext: 115. =46ax +(505) 2277-4411. USA: +(305) 735-8364. Cel. +(505) 8883-2877. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D