Hi, Thank you for lot of reply Wan protocole is IPoA. So I think I can keep eth0 ? On my debian server, I have dhcp server (isc-dhcp-server), asterisk, apache, samba. On my windows server, I have ftp server,, sam broadcaster... I will try to route as you explain to me, and I will tell you later. Thank you again ----- Original Message ----- From: Eden Caldas To: Javier Charne Cc: [email protected] Sent: Wednesday, June 22, 2011 10:53 PM Subject: Re: iptables
Since it's a dsl maybe the interface is ppp0 ? Check if this interface comes up when you dial in. Eden Caldas Consultor de TI [email protected] (81) 9653 7220 LINUX FÁCIL – Consultoria e Serviços em TI 2011/6/22 Javier Charne <[email protected]> El 22/06/11 17:19, Manu escribió: Hello, I'm French, I'm sorry for my bad english. I'm a beginner debian user. In my home network, I have a linux machine with debian6. My debian has to do dhcp server with isc-server. I have 2 network card, eth0 = public Ip (adsl modem) eth1 = lan. My dhcp server runs. But I can't connect to internet with pc's. Description : network : 10.20.30.0 mask : 255.255.255.0 Windows server: 10.20.30.2 Linux server (Debian6) : 10.20.30.1 (DHCP a nd gateway to wan) Accesspoint Wifi : 10.20.30.3 NAS server : 10.20.30.4 MAO PC: 10.20.30.5 laptop : 10.20.30.6 IP phone : 10.20.30.7, 10.20.30.8, 10.20.30.9 I can connect to lan machines but not to wan. cat /proc/sys/net/ipv4/ip_forward is 1 What are routes I have to create with route command ? How can I routed 80 port to 10.20.30.1 with iptables ? thank you for your help ! Manu: Check if 10.20.30.1 is default gateway for all devices in LAN. In Debian Server, traffic to Internet must be nated: iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE Javier.-

