Configuring Additional Ip Addresses For The Utwan; Examples Of Uses Of Multiple Ip Addresses; Restrictions When Using Multiple Ip Addresses; Adding An Additional Ip Address - Nortel BCM 3.7 Manual

Configuring additional IP addresses for the UTWAN

You can assign multiple IP addresses to a single WAN interface that is configured to use frame
relay. Using this functionality, you can configure the Business Communications Manager as the
hub in a hub and spoke configuration. When Business Communications Manager is the hub or
central site, Business Communications Manager can provide at least two IP address classes on the
primary WAN interface. This allows the system to provide Direct Mode capability.

Examples of uses of multiple IP addresses

• You can use a single WAN physical link to connect to both an intranet and the internet using
separate addressing schemes.
• A network service provider can create a separate IP address for management functions over
the WAN interface.
In both of these examples, broadcast traffic destined for one IP address would not be transmitted
on the links associated with the other IP address.

Restrictions when using multiple IP addresses

• Nortel Networks does not recommend using more than two IP address classes.
• Multiple IP addresses supports RIP routing.
• IPSec does not support the use of these multiple IP addresses for Branch Office Local
Endpoint Addresses, Remote Endpoint Addresses or the Destination IP Address for IPSec
VPN Clients

Adding an additional IP address

1 On the navigation tree, click the Resources key and click the UTWAN key.
2 Click the UTWAN1 heading.
The Summary screen appears.
3
Click the Additional IP Address tab.
The Additional IP Address screen appears.
4
On the Configuration menu, click Add Additional IPAddress.
The Additional IP Address screen appears.
5
Configure the Additional IP Address parameters with the information in the following table.

Table 28 Additional WAN IP addresses

Attribute Description
Range (AA#) View the Additional IP Address identifier.
The Range number uniquely identifies an Additional IP Address. The value for this setting must
follow certain conventions. The Range number does not have any significance, other than
uniquely identifying an Additional IP Address.
IP Address Enter the Additional IP address of the WAN interface in the following format: 255.255.255.255.
Universal T1 WAN (UTWAN)
Programming Operations Guide
187