Firewall/NAT

Hi there

Sorry about this question (I checked around the forum but still it is unclear to me).

I connect to my provider using PPPoE. Here are my data:

Nb of IP addresses: 4
Usable IP address 1: 215.174.40.157
Usable IP address 2: 215.174.40.158
Subnet: 255.255.255.252

I have been using monowall for years with the first static IP address (215.174.40.157) with NAT.

-> How can I now configure monowall to be able to use the second IP address too? Is it true that I just need to configure the "NAT" and the "Rules" panels in monowall? If yes I need to specify somewhere the seconds IP address!?

Thanks & cheers,
P.

You probably need to set up that second IP under Services -> Proxy Arp.  Then you should be able to use it in NAT as needed.

Hi Lee

Thanks for your answer.

Sorry for my ignorance but I'd like to understand this:

On the panel Services -> Proxy Arp it says: "...It is not necessary on the WAN interface if you have a subnet routed to you or if you use PPPoE/PPTP, and it only works on the WAN interface if it's configured with a static IP address or DHCP..."

I am using PPPoE and I in my case there is a subnet routed to me (255.255.255.252)!?

Thanks & cheers,
P.

"a subnet routed to you" is actually when you have an entire subnet, and you have an IP address in a smaller subnet for routing.  Your wan IP is the next hop for that subnet.

As to proxy arp and PPPoE, I have not tried it, so I do not know.