I have a Suse Linux box behind a PFSense router connected to a T1 line. I have 6 public IP addresses 12.xx.xx.81 - 12.xx.xx.86. I changed the second NIC eth1 to 12.xx.xx.82 and connected to the hub connected to the T1 modem. I also have an IP phone 12.xx.xx.84 connected there. My PFSense router has dual WAN set up with the second ISP through a wireless connection.
I can ping 12.xx.xx.82 from my internal network and also connect to
http://12.xx.xx.82 from the internal 192.168.42.xx network. From the router I can ping through my choice of the 2 WAN connections. If I use the 12.xx.xx.xx network, it responds, however I have it ping through the other ISP I can not reach it. I can ping the 12.xx.xx.84 IP phone through either ISP or from outside computers (Office). From the outside, I can not ping or reach the
http://12.xx.xx.82 web server. NIC eth1 is in the External zone and the port 80 is open.
Any clues on what I have missed? I will also need to ssh to the public IP later.
Here is the layout:
http://www.keitht.com/images/Network.jpg