Netgear FVX538NA 사용자 설명서

Network Planning for Dual WAN Ports

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This appendix describes the factors to consider when planning a network using a firewall that has 
dual WAN ports.

The ProSafe VPN Firewall 200 is a powerful and versatile solution for your networking needs. But 
to make the configuration process easier and to understand all of the choices available to you, you 
need to think through the following items before you begin:

1. Plan your network

a.

Determine whether you are going to use one or both WAN ports. For one WAN port, you 
may need a fully qualified domain name either for convenience or if you have a dynamic 
IP address.

b. If you are going to use both WAN ports, determine whether you are going to use them in 

rollover mode for increased system reliability or load balancing mode for maximum 
bandwidth efficiency. See the topics in this appendix for more information. Your decision 
has the following implications:

•

Fully qualified domain name

–

For rollover mode, you are going to need a fully qualified domain name to implement 
features such as exposed hosts and virtual private networks. 

–

For load balancing mode, you may still need a fully qualified domain name either for 
convenience or if you have a dynamic IP address.

•

Protocol binding

–

For rollover mode, protocol binding does not apply.

–

For load balancing mode, you need to decide which protocols you want to bind to a 
specific WAN port if you are going to take advantage of this option (you will make 
these selections in