Re: [CentOS] Centos Firewall - router with virtual IP

On 11/03/11 5:43 PM, Fajar Priyanto wrote:

Now, I'm adding some virtual interface eth1:0, eth1:1... so on to accommodate new subnets created in the LAN.

whats the point of having multiple subnets on the same physical LAN segment ? if you want to isolate separate local networks, you really should use separate physical adapters with separate switches... or VLAN switching if you have a switch that supports VLAN trunking.

anyways, whatever, yes, you can do it with iptables, but not all off the shelf firewall script generators will support multiple LAN subnets. I usually write my own iptables rulesets.