Is it possible to change tunnel port?

RouterOS General
1

Hello.
Like above this subject.
Can I change vpn service port?

Here’s situation
Client ------ Internet ------- ISP Modem ------- CCR1009 —Local
|-------------------------[VPN]----------------------------|

Currently, ISP Modem block vpn service port. like tcp/1723, udp/1701 etc..
So we need to access to CCR1009 using other service port like tcp/17230..
Is it possible?

2

Maybe using a NAT translation

3

Try a SSTP tunnel -
http://wiki.mikrotik.com/wiki/Manual:Interface/SSTP
The use of TLS over TCP port 443 allows SSTP to pass through virtually all firewalls and proxy servers.

4

While I would also vote for SSTP you can do this with a redirect action in a nat rule:

/ip firewall nat
add action=redirect chain=dstnat dst-address=my.wan.ip protocol=tcp dst-port=17230 to-ports=1723

Be sure your Modem will forward protocol 47 (GRE) to your router.
-Chris