RouterOS v3.13: portmapping don't work.

RouterOS General
1

I need to portmap port 25 from MikroTik interface to our SMTP server.

/ip firewall nat add action=dst-nat chain=dstnat dst-address=82.207.85.177 dst-port=25 protocol=tcp to-addresses=194.79.8.34 to-ports=25

winbox (IP/Firewall/NAT) shows packets on this rule, but SMTP server don’t receive this packets.

Is this my mistake (than please point me on it) or error in RouterOS?

RouterOS v3.13, hardware RB1000.

2

Have you checked your incoming chain to se if the connection is permitted?

3

are 82.207.85.177 and 194.79.8.34 on different interfaces?

4

Yes, connection is permitted.

5

The case is more difficult - 194.79.8.34 is on another device, not on MikroTik. I need to pass traffic through MikroTik to mailserver.

6

Hi,

Try specifying incoming interface, instead of dst-address. For me it works fine that way.

Mangot