PFSENSE randomely blocking ports....

[mrpushner]

Hi, Using ver 2.3.5.

I have Nat rules in place to allow SMTP on port 587 (SUBMISSION) from a Printer/Scanner to a mail server over an OPENVPN setup between two sites.

PFsense randomly stops allowing the connections from this printer to the mail sever! If I reboot the PF box, it fixes itself for a time, then it starts to happen again.

I turned on logging for the NAT rule, but I do not see any logs of whats happening, even what it passes?

I have 2 other machines set up the exact same way with different rules and they work fine.

How do I diagnose this please?

Thanks,

MP

[heper]

why would you need nat rules?

[mrpushner]

Hi Heper,

I am using the rules to only allow SMTP port 587 from specific IPs through because if not i have a bunch of spammers trying to hit my SMTP server.

Thanks,

[heper]

That's what firewall rules are for... Not nat rules

[johnpoz]

Yeah why would you need nat rules for something coming in via nat rules? And why would it be open from the internet if its your devices from a vpn location sending?