Hi, I am setting up a pfsense box to replace my aging Sonicwall SOHO, it has 4 NIC's, WAN, LAN, OPT1, OPT2. I have purchased the pfSense book and gave it a read through before starting.
Configuration has been going well for WAN, LAN, VPN's and port forwarding into internal hosts. The one glitch I am having problems with is the CentOS 5 based mail server hanging off of OPT1 with an external public address that is one of my block of 4 usable. Port 25 appears to be blocked. I can send mail out but cannot receive mail from the outside. I have pfsense OPT1 in bridge mode with the WAN. It is a statically assigned public IP address with a gateway of the ISP router. Prior to this new setup I had a switch outside of the SonicWall and had both the mailserver and Sonicwall hanging off of that. It had the same static public IP and used the same ISP gateway. I ran nmap from remote servers and sure enough port 25 is not accessible. I set rules on the WAN to allow SMTP to pass through to the external address on OPT1 and still no pass. Running netstat on the mail host shows port 25 to be "filtered". Am I missing something? Should I set the gateway on the CentOS mail server to the pfsense box? Thanks, -- Mark Street, D.C., RHCE Chief Technology Officer Alliance Medical Center (707) 433-5494
