Hi,
Port 264 is open on the gateways for Secureremote is this port realy necessary ?
There is some securety issues about the hostname disclosure as seen in the link bellow
CheckPoint Firewall-1 SecuRemote Topology Service Hostname Disclosure | Rapid7
best regards,
See: Check Point response to SecuRemote Topology Service Hostname Disclosure
TL;DR: The information is considered public.