Hello, We are trying to set shorewall on a centos server hosting an asterisk server. We are experiencing troubles due to very complicated environment. Shorewall is running on the same box than asterisk with dual NIC, server also as several services running on it like ntp, https or dhcpd Two network : 10.200.229.0/255.255.255.0 and 192.168.0.0/255.255.255.0 Router1 : 10.200.229.1 IP phones : 10.200.229.20 - 10.200.229.29 Computers : 10.200.229.30 - 10.200.229.40 Shorewall : 10.200.229.10 (eth0) and 192.168.0.10 (eth1) Asterisk ip : 10.200.229.10 DSL modem : 192.168.0.254 All web traffic for asterisk /shorewall server (http, ftp, dns, ...) should go through router1 10.200.229.1 via eth0 All SIP traffic (port 5060-5082 and 10000-20000) should go through dsl modem 192.168.0.254 via eth1 /etc/sysconfig/network : NETWORKING=yes FORWARD_IPV4="yes" HOSTNAME=localdomain.localhost NOZEROCONF=yes /etc/sysconfig/network-script/ifcfg-eth0 : DEVICE=eth0 BOOTPROTO=none HWADDR=00:xx:xx:xx:xx:xx ONBOOT=yes NETMASK=255.255.255.0 IPADDR=10.200.229.10 GATEWAY=10.200.229.1 TYPE=Ethernet /etc/sysconfig/network-script/ifcfg-eth1 : DEVICE=eth1 HWADDR=00:xx:xx:xx:xx:xx ONBOOT=yes BOOTPROTO=none TYPE=Ethernet NETMASK=255.255.255.0 IPADDR=192.168.0.10 We don''t control Router1 parameters. Can you help me setting up a correct configuration, I''m trying for over 3 days to obtain a clean and working result. I tried multiple ISP, single ISP, no configuration is fully fonctionnal. Thanks, Olivier ------------------------------------------------------------------------------ Return on Information: Google Enterprise Search pays you back Get the facts. http://p.sf.net/sfu/google-dev2dev