Re: [exim] Logging IPv4 port numbers

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Lähettäjä: Jakob Hirsch
Päiväys:  
Vastaanottaja: exim users
Aihe: Re: [exim] Logging IPv4 port numbers
Mike Cardwell, 2011-01-27 12:25:

> outgoing mail in case the Exim installation is behind NAT. Surely, if
> they're behind NAT, the NAT gateway will change the source port anyway
> as far as the destination server can see?


Usually not, as long as the port is not already used.

> Ie, if two Exim installations behind NAT bind to their local port 1234


Exim does not bind to a specific port for outoing connections.

You can, of course, get the address and port of the local end, after the
connection is established, but I don't see the big benefit out of that,
especially in the case where the NAT gateway has to change the port.