Hello to you all, I have set up my Centos 5.5 server with ISPConfig 3 as a nameserver and as a router. This server has two networkcards eth0 which connects directly to the internet and has the following set up: IP 192.168.2.10 Netmask 255.255.255.0 Gateway 192.168.2.254. The second networkcard connects to a switch for my internal network this has: IP 10.0.0.0.10 Netmask 255.255.255.0 Gateway 192.168.2.10 Master nameserver has ip 10.0.0.10 Slave nameserver has ip 10.0.0.15 After setting up the router I'm able to connect to the internet with my xp-computer using a static ip-adres IP 10.0.0.40 netmask 255.255.255.0 gateway 192.168.2.10 I also would like my secondary nameserver to connect to the internet to use yum etc. So I set up eth0 on this Centos 4.8 computer as follows: IP 10.0.0.15 netmask 255.255.255.0 gateway 192.168.2.10 Unfortunally I cannot get a connection to the internet on the second nameserver. I can ping the computers in the 10.0.0.x range but I cannot ping 192.168.2.10. Do I also have to make some settings on the IPtables, or is this a problem due to Bind, and do I have to correct my named.conf. With kind regards, Ad.