Multiple Network Address Translation
IP Passthrough
Netopia Firmware Version 5.4 offers an IP passthrough feature. The IP passthrough feature allows for a single PC on the LAN to have the router’s public address assigned to it. It also provides PAT (NAPT) via the same public IP address for all other hosts on the private LAN subnet. Using IP passthrough:
■The public WAN IP is used to provide IP address translation for private LAN computers.
■The public WAN IP is assigned and reused on a LAN computer.
■DHCP address serving can automatically serve the WAN IP address to a LAN computer.
When DHCP is used for addressing the designated passthrough PC, the acquired or configured WAN address is passed to DHCP, which will dynamically configure a
Globally, only one
In the case of an Ethernet WAN router the IP passthrough configuration is located in the WAN Ethernet Configuration menu. For all other routers, it is located in the Connection Profiles' IP Profile Parameters.
The WAN Ethernet Configuration screen, found under the WAN Configuration menu, WAN Setup screen, appears as shown.
WAN Ethernet Configuration
Address Translation Enabled: | Yes |
Local WAN IP Address: | 0.0.0.0 |
NAT Map List... | |
NAT Server List... | |
NAT Options... |
|
Stateful Inspection Enabled: | No |
Filter Set... |
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Remove Filter Set |
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Enable PPP over Ethernet: | Off |
WAN Ethernet Speed Setting... | |
Wan Ethernet MAC Address: | 00:fc:de:fa:dd:02 |
DHCP Client Mode: | |
RIP Options... |
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Set up the basic IP attributes of your Ethernet Module in this screen.
