Office Mode
Office Mode is a Check Point remote access VPN solution feature. It enables a Security Gateway to assign a remote client an IP address. This IP address is used only internally for secure encapsulated communication with the home network, and therefore is not visible in the public network. The assignment takes place once the user connects and authenticates. The assignment lease is renewed as long as the user is connected. The address may be taken either from a general IP address pool, or from an IP address pool specified per user group, using a configuration file.
https://sc1.checkpoint.com/documents/R81/WebAdminGuides/EN/CP_R81_RemoteAccessVPN_AdminGuide/Topics-VPNRG/SSL-Network-Extender.htm?TocPath=SSL%20Network%20Extender%7C_____4