Port forwarding using wan ip on local showing bsd protocal mismatch

[krrose27]

Hey so I setup a nat rule to take requests on a public port and redirct it to the port 80 on an internal test machine…

externalip:1337 -> tcp/up -> 192.168.1.x:80

When accessing the url from an external source I get the apache server as expected..

However if I do it from another machine in the network I get:

a blank page with the text:

SSH-2.0-OpenSSH_5.4p1 FreeBSD-20100308
Protocol mismatch.

As my server isn't running bsd I am assuming this is the pfsense box.

Edit:
Info on build
2.0-BETA5 (i386)
built on Thu Feb 17 02:14:25 EST 2011

[wallabybob]

The NAT rules all specify an interface on which a packet enters the box.

Possibly when you access the URL from another machine on the network the packet enters the box on a different interface and hence doesn't match your NAT rule.