Product specifications

Efficient Networks
®
Router family
Technical Reference Guide
Chapter 4: System Management
Efficient Networks
®
Page 4-23
Classic NAT
With classic NAT, one PC IP address is translated to one NAT IP address. This NAT
technique is primarily used to make certain hosts on a private LAN globally visible and
give them the ability to remap these IP addresses as well.
Client Configuration
Classic NAT requires that you first enable NAT Masquerading (as described in the
previous section); thus, for the Classic and Masquerading forms of NAT, the clients
are configured in the same way; see Client Configuration on page 4-18.
Host Remapping
Interface-Specific Commands
You can enable and disable host remapping for specific remote interfaces and for
specific Ethernet interfaces. To enable or disable host remapping on a per-remote
basis, use these commands:
-> remote addhostmapping <first privaddr> <second privaddr>
<first publicaddr> <remotename>
-> remote delhostmapping <first privaddr> <second privaddr>
<first publicaddr> <remotename>
Use the command remote addhostmapping whenever a host on the local LAN is
known by different IP addresses to different remotes.
To enable or disable host remapping on a per-Ethernet-interface basis, use these
commands:
-> eth ip addhostmapping <first privaddr> <second privaddr>
<first publicaddr> <interface>
-> eth ip delhostmapping <first privaddr> <second privaddr>
<first publicaddr> <interface>
System Commands
Use these commands to enable or disable host remapping system-wide:
-> system addhostmapping <first privaddr> <second privaddr>
<first publicaddr>
-> system delhostmapping <first privaddr> <second privaddr>
<first publicaddr>
Use the command system addhostmapping whenever a host on the local LAN is
known by the same IP address on all remotes.