You will need to enusre that enusre your SPLAT WebUI or your IPSO Yoyger is listening on another port other the tcp/443. Configuring a Third-Party Gateway using a CheckPoint with a SonicWall SSL-VPN appliance.The user will now be able to connect to your gateway via your web browser on port 443.Create a Rule for to allow access from your usergroups to your internal hosts (local encryption domain) and select your Remote Access Community.Within the Users Tab create your users and add these to a new user group.Add your Gateway as a paricipating gateway. Within the VPN community Tab under your Remote Access community.Configure client-to-site VPN or set up an SSL VPN Portal to connect from any browser. Within the Check Point Object under SSL Clients – Tick the SSL Network Extender and select the ICA_CERT as the The gateway authenticates with this certificate. Remote access is integrated into every Check Point network firewall.Under Certificate for gateway authentication select ICA_CERT. Within the Check Point Object Under Client VPN – Tick Support Clientless VPN.

Add this new network object under Manual (Allocate IP address from Network) Within the Check Point Object under Office Mode – Select “Allow Office Mode to all users”.Within the Check Point Object under Remote Access make the following changes : Enable Support Vistor Mode.Within the Check Point Object under Tolopogy > VPN Domain add your local domain. Click on the Network Client Tab Click on Create New Network Client Create a name such as Checkpoint Firewall/VPN Choose a WiKID domain to the network.This will be used as the remote users IP address. Below shows you the steps in order to create an SSL VPN on a Check Point Gateway :

Checkpoint ssl vpn configuration