Network Configuration |
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WAN Mode |
The WAN mode page allows you to configure how your router should use your external
Internet connections, for example your ADSL and WAN Ethernet port connections. |
NAT is a technique which allows several computers on a LAN to share an
Internet connection. The computers on the LAN use a "private" IP address
range while the WAN port on the router is configured with a single "public" IP
address. |
Along with connection sharing, NAT also hides internal IP addresses from the
computers on the Internet. |
NAT (Network Address Translation) |
Select
NAT if your ISP has assigned only one IP address to you. The computers
that connect through the router will need to be assigned IP addresses from a
private subnet (example: 192.168.1.0). If your ISP has assigned an IP address
for each of the computers that you use, select
Classical Routing. |
Note: The router will delete all inbound firewall rules when switching between
NAT and
Classical Routing. |
Port Mode |
The
Port Mode settings allow you to configure whether the router should use only
one WAN port or both. |
If you are connected to only one ISP, then select
Use single WAN port and select
the WAN port that is connected to your ISP. |
If you have two ISP links for Internet connectivity, the router can be
configured either in
Auto Rollover Mode or
Dedicated Port Mode. |
If you want to use a redundant ISP link for backup purposes, then choose
Auto
Rollover Mode and select the WAN port that will act as the primary link for this
mode. Ensure that the backup WAN port is configured before enabling Auto Rollover. |
The
WAN
Failure Detection Method must be configured to notify the router of a link
failure. |
WAN Failure Detection |
When the router is configured in
Auto Rollover Mode, it checks the connection of
the primary link at regular intervals to detect its status. Link failure is
detected in one of the following ways: |
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Select
DNS lookup using configured DNS Servers to detect failure of a WAN link using the DNS servers configured in the ADSL Settings or WAN Ethernet ISP Settings pages under the Network Configuration menu. |
To use a specific DNS server for detecting WAN failure, select DNS lookup using
this DNS Server and type in the IP address of the DNS server. |
To detect WAN failure by pinging to an IP address, select
Ping to this IP
address and type in an IP addresses in the fields under that option. Ensure that
this destination host is reliable. |
The number in the
Test Period field tells the router how often it should run the above
configured detection method. |
The
Failover after field determines the number of
successive failures that will trigger a switch over of the WAN link. |
Click
Apply to save your changes. |
Click
Reset to revert to the previous settings. |
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