User's Manual

Configuring Network Address Translation

308625-14.00 Rev 00

2-65

Configuring NAT Synchronization Peers

NAT synchronization peers are the routers that this router exchanges translation

updates with. When the NAT router receives a connection request, it looks up the

sending router’s ID in its list of peers. If the sending router’s ID is not in its peer

list, the router refuses the connection request.

Adding NAT Synchronization Peers

NAT synchronization supports up to 10 routers in a synchronized configuration.

For each router that you configure as a peer, you must specify its unique

synchronized router ID and the IP address of the interface that the peer router will

use to make TCP connections when sending or receiving address translations.

Using the BCC

To add a router to the list of synchronized peer routers, navigate to the global NAT

prompt (for example,

box; ip; nat

) and enter:

peer

<synch_router_id>

address

synch_router_id

is the ID assigned to the peer router (see “Setting the

Synchronized Router ID” on page 2-60).

address

is the address of the peer router’s IP interface.

For example, the following command sequence configures the router 10.0.0.20 as

a peer router and verifies the entry:

nat#

peer 10.0.0.20 address 10.0.0.20

peer/10.0.0.20#

info

router-id 10.0.0.20

address 10.0.0.20

state enabled