User's Manual

Configuring Network Address Translation
308625-14.00 Rev 00
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Starting NAT Services
You can use the BCC or Site Manager to start NAT on the router. For instructions
on how to start and use the BCC or Site Manager, see one of these guides:
• Using the Bay Command Console (BCC)
• Configuring and Managing Routers with Site Manager
Using the BCC
To get NAT up and running on a router using default values for most parameters:
1.
Add NAT to the router.
2.
Specify at least one local address range to be translated.
3.
Specify at least one global address range to use when translating a local
address.
4.
Specify the local NAT interface.
5.
Specify the global NAT interface.
These steps are described in the following sections.
Adding NAT to the Router
To add NAT to the router, navigate to the global IP prompt (for example,
box; ip
)
and enter:
nat
Specifying a Local Address Range for NAT Translation
The local address range tells the router which local unregistered host addresses to
translate into global addresses. You must configure at least one local address
range.
The local address range is specified as a base address and a prefix length (from 1
through 32 decimal). The prefix length determines the number of available local
addresses. For example, if the base address is 10.1.10.0 and its prefix length is 24
(255.255.255.0), then the address range you specify includes addresses 10.1.10.0
through 10.1.10.255.