The following stuff is dead-simple in FreeBSD/ipfilter, but seems to 
be complex in PIX.

Because the design (no matter which brand of packet filter) applies 
to all IMGate/Imail 8.2x sites and will be explained later, please 
try to help with PIX syntax.

Here are the pseudo-rules to be implemented in PIX syntax:

1. allow from any-IP to Imail-IP port 587 tcp

... is just opening PIX to allow Internet access to Imail port 587 
(just like opening for port 25)

2. redirect from any-ip to Imail-IP port 25 => Imail-IP port 587

... redirect access to Imail port 25 to port 587

Does PIX support the above and have you done it?


Thanks
Len



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