ip firewall service-port GRE replaced with SIP???

RouterOS General
1

Hi all,

We have a recently upgraded router (2.9.43) that ‘lost’ it’s GRE service setting in /ip firewall service-port and was replace by SIP as a service port instead.

Anyone know how this may have happened, and how can we get it back again? Is it as simple as changing the port number of the ‘new’ SIP service port to 47?

2

I hope the GRE helper isn’t going away, we have lots of ipsec tunnels going thru mikrotik using that.

Sam

3

if you need gre, enable pptp helper

port and protocol are two completely different things. GRE protocol number is 47 not port number.

4

My understanding is it’s the other way around - if you need PPTP, enable GRE

But this still doesn’t explain why the GRE option has disappeared?
Downgrading didn’t help, so it seems somewhere this can be changed?

5

hmmm… checked on ROS v3.0beta9, and it seems GRE helper has been replaced by SIP?

What gives???

How did my v2.9.43 ROS lose the GRE helper in favour of SIP???

6

it’s built in now, no need to turn it on anywhere

7

ah - whew

Strange thing is, we have only one RB on 2.9.43 out of about 20 or so on 2.9.43 that this happened to. What could we have done differently for this to happen on this one router?