NETGEAR STM150EW-100NAS manual VPN Telecommuter Client-to-Gateway through a NAT Router, 635

ProSecure Unified Threat Management (UTM) Appliance

Figure 373.

The IP addresses of the gateway WAN ports can be either fixed or dynamic. If an IP address is dynamic, you need to use an FQDN. If an IP address is fixed, an FQDN is optional.

VPN Telecommuter (Client-to-Gateway through a NAT Router)

Note: The telecommuter case assumes that the home office has a dynamic IP address and NAT router.

The following situations exemplify the requirements for a remote VPN client connected to the Internet with a dynamic IP address through a NAT router to establish a VPN tunnel with a gateway VPN firewall such as an UTM at the company office:

•Single-gateway WAN port

•Redundant dual-gateway WAN ports for increased reliability (before and after rollover)

•Dual-gateway WAN ports for load balancing

VPN Telecommuter: Single-Gateway WAN Port (Reference Case)

In a single WAN port gateway configuration, the remote VPN client at the NAT router initiates the VPN tunnel because the IP address of the remote NAT router is not known in advance. The gateway WAN port needs to function as the responder.

Figure 374.

Network Planning for Dual WAN Ports (Multiple WAN Port Models Only)

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