Motorola 7.7.4 用户手册

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页码 351
240
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.