Nortel 1010 Guía Del Usuario

Nortel VPN Router Configuration — Basic Features 

 

The branch office feature allows you to configure a secure tunnel connection 
between two private networks. Typically, one private network is behind a locally 
configured Nortel VPN Router while the other is behind a remote Nortel VPN 
Router. Branch office configuration allows you to configure the accessible 
subnetworks behind each Nortel VPN Router. The configuration also contains the 
information that is necessary to set up the connection, such as the Nortel VPN 
Router’s IP addresses, encryption types, and authentication methods. You can 
apply local policy restrictions, such as access hours, filter sets, and call admission 
priorities, to limit connectivity into local subnetworks. 

The Nortel VPN Router supports symmetric, or peer-to-peer branch office tunnels 
with fixed endpoints, and asymmetric branch office tunnels. An asymmetric 
branch office tunnel is a branch office tunnel where one of the endpoints does not 
have a fixed IP address. Such situations exist in the small branch office or SOHO 
environments where the Nortel VPN Router’s public interface is behind a DSL or 
cable modem. The DSL or cable modem services typically do not guarantee a 
static IP address. Branch office tunnels in these situations are asymmetric because 
only one side of the tunnel can initiate a connection. 

 shows a typical branch office environment.