Inbound Traffic: Dual Wan Ports For Improved Reliability; Inbound Traffic: Dual Wan Ports For Load Balancing - NETGEAR FVX538 - ProSafe VPN Firewall 200 Router Reference Manual

Reference Manual for the ProSafe VPN Firewall 200 FVX538

Inbound Traffic: Dual WAN Ports for Improved Reliability

In the dual WAN port case with rollover
rollover. A fully-qualified domain name must be used that toggles between the IP addresses of the
WAN ports (i.e., WAN1 or WAN2).
Dual WAN Ports (Before Rollover)
Router
netgear.dyndns.org
X
WAN2 port inactive
WAN2 IP (N/A)
IP address of active WAN port changes after a rollover (use of fully-qualified domain names always required)
Figure 3-4: Inbound traffic to dual WAN ports, before and after rollover

Inbound Traffic: Dual WAN Ports for Load Balancing

In the dual WAN port case for load balancing
is either fixed if the IP address is fixed or a fully-qualified domain name if the IP address is
dynamic.
Note: Load balancing is implemented for outgoing traffic and not for incoming traffic.
Consider making one of the WAN port Internet addresses public and keeping the other
one private in order to maintain better control of WAN port traffic.
Dual WAN Ports (Load Balancing)
Router
netgear1.dyndns.org
netgear2.dyndns.org
Figure 3-5: Inbound traffic to dual WAN ports for load balancing
3-4
(Figure
WAN1 IP
X
WAN1 IP
WAN2 IP
January 2005
3-4), the WAN's IP address will always change at
Dual WAN Ports (After Rollover)
Router
(Figure 3-5), the Internet address of each WAN port
IP addresses of WAN ports:
use of fully-qualified domain names
required for dynamic IP addresses
and optional for fixed IP addresses
WAN1 IP (N/A)
WAN1 port inactive
X X
netgear.dyndns.org
WAN2 IP
Network Planning