Hi Anna,
On a first look the attached logs look suspicious
The client type in the logs hints the source of these connections is not a CP gateway
The fact that target is port 18264 FW1_ica_services may be significant here
TCP port 18264 is the port used for FW1_ica_services
It is possible to use internal CA certificates for client connections as well as for site-to-site connections with other gateways, these VPN peers must be given access to the CRL list through FW1_ica_services
Please send me PM to further discuss this, my email is marioz@checkpoint.com
Best Regards, Mario
marioz@checkpoint.com