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=206.123.70.63 HWADDR=00:30:48:7A:B4:FE IPADDR=206.123.70.50 NETMASK=255.255.255.240 NETWORK=206.123.70.48 ONBOOT=yes GATEWAY=206.123.70.49 TYPE=Ethernet
Here is ifcfg-eth0:0 # nVidia Corporation MCP55 Ethernet DEVICE=eth0:0 BOOTPROTO=none BROADCAST=72.249.130.47 HWADDR=00:30:48:7A:B4:FE IPADDR=72.249.130.42 NETMASK=255.255.255.248 NETWORK=72.249.130.40 ONBOOT=yes GATEWAY=72.249.130.41 TYPE=Ethernet
Here is ifcfg-eth0:1 # nVidia Corporation MCP55 Ethernet DEVICE=eth0:0 BOOTPROTO=none BROADCAST=72.249.130.47 HWADDR=00:30:48:7A:B4:FE IPADDR=72.249.130.43 NETMASK=255.255.255.248 NETWORK=72.249.130.40 ONBOOT=yes GATEWAY=72.249.130.41 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.