topic Re: RDP and SSH not working through a Check Point Firewall site-to-site vpn in General Topics

RDP and SSH not working through a Check Point Firewall site-to-site vpn

Di_Junior — Sun, 26 Jan 2020 18:56:43 GMT

Dear Mates

I am running through a very strange behavior.

I have a site-to-site VPN connecting two sites (Check Point Firewall and Cisco).

The connection from site A to site B everythings works fine, but connection from site B to A only ping works the rest protocols does not work.

I am doing NAT on both Sites (traffic from Site A to Site B is natted by the firewall to its interface in site B, and vice versa)

Any help would be appreciated.

Thanks in advance

Re: RDP and SSH not working through a Check Point Firewall site-to-site vpn

Kim_Moberg — Sun, 26 Jan 2020 19:00:43 GMT

Which version do you run on your gateways?
Had similar issue in r80.20 but have to install a special jumbo take.
In r80.30 you need run at mest jumbo take 111.

Re: RDP and SSH not working through a Check Point Firewall site-to-site vpn

Di_Junior — Sun, 26 Jan 2020 19:03:28 GMT

HI Kim

We are running R80.20.

Re: RDP and SSH not working through a Check Point Firewall site-to-site vpn

Maarten_Sjouw — Sun, 26 Jan 2020 19:20:07 GMT

This really sounds like a mismatch in the topology defenitions, let me guess it works coming from the Cisco side but not when coming from the Check Point side?
Keep in mind that you need to make sure you are using network to network tunnels and that you define the networks exactly the same on both ends.

Re: RDP and SSH not working through a Check Point Firewall site-to-site vpn

Di_Junior — Mon, 27 Jan 2020 10:51:54 GMT

Hi Maarten

Refer to this thread for more information.

https://community.checkpoint.com/t5/General-Topics/Issues-migrating-from-Cisco-ASA-to-Check-Point/m-p/73426#M14872