hi,

our Cable provider blocked the TCP/25 ports. thus I added the TCP/26 to our co-located SMTP server.

I'd like to redirect every Masqueraded outgoing packet which goes to TCP/25 to be rewrited to TCP/26

Please help me

Yours,
Redax

/ip firewall nat add chain=dstnat proto=tcp dst-port=25 action=dstnat to-ports=26

/ip firewall nat add chain=dstnat proto=tcp dst-port=25 action=dstnat to-ports=26

That's what I've tried, before I posted my question, I added the in-interface as well.
Not Working.

Although if I specify the to-address=IP_address as well then it works well.
in this case every port25 traffic is nat'ed to the IP_address:26

but I don't want to rewrite the IPaddress, Just the port.

Regards,
Redax

what version do you use?

what version do you use?

3.10, shall I upgrade?

What's new in 3.11:

*) added ability to dst. nat only address or port, not both at the same time;

ehh.
Thank you for your help,

Regards,
Redax