Motorola 3347 - Manual (Page 240)

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Network Address Translation (NAT) Default Settings
NAT default settings let you specify whether you want your Motorola Netopia® Gateway to
for ward NAT traffic to a default ser ver when it doesn’t know what else to do with it. The
NAT default host function is useful in situations where you cannot create a specific NAT pin-
hole for a traffic stream because you cannot anticipate what por t number an application
might use. For example, some network games select arbitrar y por t numbers when a con-
nection is being opened. By identifying your computer (or another host on your network) as
a NAT default ser ver, you can specify that NAT traffic that would other wise be discarded by
the Motorola Netopia® Gateway should be directed to a specific hosts.
set nat-default mode [ off | default-server | ip-passthrough ]
Specifies whether you want your Motorola Netopia® Gateway to for ward unsolicited traffic
from the WAN to a default ser ver or an IP passthrough host when it doesn’t know what else
to do with it.
set nat-default dhcp-enable [ on | off ]
Allows the IP passthrough host to acquire its IP address via DHCP, if ip-passthrough is
enabled.
set nat-default address ip_address
Specifies the IP address of the NAT default ser ver.
set nat-default host-hardware-address MAC_address }
Specifies the hardware (MAC) address of the IP passthrough host. If the MAC address is
specified as all-zeroes, the first DHCP client that requests an IP address gets the
passthrough address.
Network Address Translation (NAT) Pinhole Settings
NAT pinholes let you pass specific types of network traffic through the NAT inter faces on
the Motorola Netopia® Gateway. NAT pinholes allow you to route selected types of network
traffic, such as FTP requests or HTTP (Web) connections, to a specific host behind the
Motorola Netopia® Gateway transparently.