Motorola 7.7.4 用户手册

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When you click on the 

 link, the IPSec configuration screen appears.

Your Gateway can suppor t two mechanisms for IPSec tunnels:

IPSec PassThrough supports Virtual Private Network (VPN) clients running on LAN-
connected computers. Normally, this feature is enabled.

You can disable it if your LAN-side VPN client includes its own NAT interoperability 
option. Uncheck the 

 checkbox.

A VPN IPSec Tunnel provides a single, encr ypted tunnel to be 

terminated on the Gateway, 

making a secure tunnel available for 

all LAN- connected users. This implementation offers 

the following:

Eliminates the need for VPN client software on individual PCs.

Reduces the complexity of tunnel configuration.

Simplifies the ongoing maintenance for secure remote access.