Configuring A Branch Office - Nortel Contivity 1100 Configuration Manual

128 Chapter 6 Configuring branch office tunnels
The Nortel VPN Client supports dynamic DNS registration. The Client Dynamic
DNS Registration setting on the Profiles > Groups > Edit > IPsec window
enables you to select whether to enable or disable DDNS. It is enabled by default.
You can use this parameter only with the Nortel VPN Client. Also, your DNS
server must support Dynamic DNS and be configured to allow Dynamic DNS
registration.

Configuring a branch office

To create a new branch office connection, give it a name and associate it with a
group. You can choose an existing group or create a new one. The branch office
connection then uses that group's attributes, such as password management and
encryption. You set the group's attributes on the Profiles > Groups window.
The branch office connection then inherits the attributes of that group. You can
associate multiple branch offices with the same group, thereby saving setup time
and increasing management efficiency. For example, you might plan on creating
several VPN connections from various remote sales offices into your enterprise
headquarters. In this case, you create all of the connections in the same group so
they all have the same attributes, such as hours of access, encryption method, and
password management.
Use the Branch Office window to create new branch office connections and to edit
or delete existing connections. You can also add or edit the group that is
associated with your branch office connection.
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Note: Certain configuration changes are not reflected in the active
branch office tunnel until it is disabled then re-enabled. Examples of
these types of configuration changes are: changes to the tunnel filter used
by the branch office (changing which filter is applied is reflected in the
active branch office tunnel); changes to the NAT policy used by the
branch office; routing changes, such as adding or deleting a default route.