Got an issue with Outbound NAT.

I have 2 interfaces, LAN and WAN. 

WAN has an IP assigned to its interface, as well as an additional 4
virtual IPs for a total of 5 IP addresses which are used in various
inbound NAT rules. I have turned on manual outbound NAT, as I need my
outgoing SMTP traffic to always come from a particular IP.

My outbound NAT page looks like this (obviously with real IP addresses
as opposed to .x.x.):

Interface, Source, Source Port, Destination, Destination Port, NAT
Address, NAT Port, Static Port

  WAN    192.x.x.11/32  *  *  25        209.x.x.62  *  NO  
  WAN    192.x.x.6/32   *  *  25        209.x.x.62  *  NO  
  WAN    192.x.x.5/32   *  *  25        209.x.x.62  *  NO  
  WAN    192.x.x.0/24   *  *  * *               *  NO     
  
The top 3 items are mail servers, and I want those to always use a
particular IP address when communicating with the outside world (which
seems to work just fine). The problem comes with rule #4-- none of my
internal machines are able to communicate with the outside world (and #4
is the "auto generated rule"). I told the rule to use the "interface
address" of the WAN for the NAT Address, but there doesn't seem to be
any difference between "interface address" and "any" in the rule
selection (which looks wrong to me), as the resulting rule looks exactly
the same (bug?). When I specifically choose one of the virtual IPs, rule
#4 THEN looks like this:

  WAN    192.x.x.0/24   *  *  * 209.x.x.61      *  NO     

... and then my internal machines are able to communicate to the outside
world. 

The interface address is 209.x.x.55-- so when I choose "interface
address," shouldn't the rule be:

  WAN    192.x.x.0/24   *  *  * 209.x.x.55      *  NO

Or maybe

  WAN    192.x.x.0/24   *  *  * (WAN)   *  NO         

??

Or am I doing something wrong?

Congrats on a great release, by the way. :)

Dimitri Rodis
Integrita Systems LLC

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