Checkpoint ssl vpn portal9/14/2023 ![]() ![]() When the Security Gateway sends packets that are larger than the next hop's MTU size, receive an ICMP "Fragmentation Needed" message with the next hop's MTU size.Security Gateway sends packets with "Don't Fragment" (DF) flag set.Security Gateway segments packets to 1500 bytes according to the MTU of its interface.Endpoint Security VPN fails to connect to Security Gateway with " Site is not responding" error.Scenario 2: Endpoint Security VPN fails to connect to Security Gateway with "Site is not responding" error Install policy on the Security Gateway / Cluster object.Put the Gateway Object back into any relevant VPN communities.Click 'OK' to close the 'Properties' window.In 'Certificate Nickname', type defaultCert ( all letters are small, except the 'C').Select "IPSec VPN" and under 'Repository of Certificates Available on the Gateway', click 'Add.'.Select 'SmartDashboard > Security Gateway / Cluster object > Properties'.Select "IPSec VPN" and under 'Repository of Certificates Available on the Gateway', select the certificate called 'defaultCert'.Select 'SmartDashboard > Security Gateway / Cluster object > Properties'.Remove the Gateway Object from any VPN community it participates in.Select 'File > Database Revision Control > Create'. Backup the database by using Database Revision Control.VPN certificate is expired / does not have the right properties / is corrupted. ![]()
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