Thomas Borge - 2015-11-05

Hi,

We are using fwbuilder to make our firewall (IPtables) on Ubuntu 14.04.
Today we have an setup with two firewalls, one in front with external IP and 1 DMZ ip, the second firewall has an DMZ ip and one internal IP.

By now we have only used one external IP with HTTP and HTTPS ports, this has worked fine.
But due to changes in the organization we need to add one more external IP to the firewall and use the same ports HTTP and HTTPS.

Adding the new External IP and creating the fw rules so that HTTP and HTTPS goes through the first firewall is done and works, but when it hits the other firewall we are struggling. No matter what we type in it goes directly to the old rule that has been made for the first external IP and not the one that is made for the new one.

Can anybody help us with how we can make this rule correct?

Easy showing of the firewall setup
External IP ->FW01->DMZ IP1 -> DMZ IP2->FW02->Internal IP

Thanks!