Hello: I have a machine running CentOS 5.2 I added two IP addresses to eth0 by copying /etc/sysconfig/network-scripts/ifcfg-eth0 to /etc/sysconfig/network-scripts/ifcfg-eth0:0 /etc/sysconfig/network-scripts/ifcfg-eth0:1 and changing the relevant IP info. I am now seeing outbound connections failing at my firewall from services like NTP, etc. since they are now using a source address from one of the added IP addresses instead of the original eth0 IP which is allow through the firewall. I don't want to have to keep maintaining 3 copies of each firewall rule to accommodate the new IP addresses. Is there a way to tell the machine to use the eth0 IP address as the source address for connections? Here is the original ifcfg-eth0 file: # nVidia Corporation MCP55 Ethernet DEVICE=eth0 BOOTPROTO=none BROADCAST=184.108.40.206 HWADDR=00:30:48:7A:B4:FE IPADDR=220.127.116.11 NETMASK=255.255.255.240 NETWORK=18.104.22.168 ONBOOT=yes GATEWAY=22.214.171.124 TYPE=Ethernet Here is ifcfg-eth0:0 # nVidia Corporation MCP55 Ethernet DEVICE=eth0:0 BOOTPROTO=none BROADCAST=126.96.36.199 HWADDR=00:30:48:7A:B4:FE IPADDR=188.8.131.52 NETMASK=255.255.255.248 NETWORK=184.108.40.206 ONBOOT=yes GATEWAY=220.127.116.11 TYPE=Ethernet Here is ifcfg-eth0:1 # nVidia Corporation MCP55 Ethernet DEVICE=eth0:0 BOOTPROTO=none BROADCAST=18.104.22.168 HWADDR=00:30:48:7A:B4:FE IPADDR=22.214.171.124 NETMASK=255.255.255.248 NETWORK=126.96.36.199 ONBOOT=yes GATEWAY=188.8.131.52 TYPE=Ethernet Any ideas why this is happening? Thanks, Neil -- Neil Aggarwal, (832)245-7314, www.JAMMConsulting.com Eliminate junk email and reclaim your inbox. Visit http://www.spammilter.com for details.