3Com REMOTE ACCESS SYSTEM 1500, Management Manual

Page: 95 / 300

Overview
93
Routing Overview Configuring a LAN-to-LAN routing connection is very similar to
configuring a network user, with some additional dial-out and routing
parameters such as:
■
Types of LAN-to-LAN connection
■
Routing configuration
■
Dial-out scripts used to connect to the remote location
■
Bandwidth (can be increased or decreased automatically)
The following sections give an overview of each parameter.
LAN-to-LAN Connection Types
Table 18 shows the types of LAN-to-LAN connections you can establish.
If system time is changed when timed connection user is enabled, the
user must be disabled and re-enabled.
Routing Configuration
When the RAS 1500 connects to another router, periodic router updates,
called RIP messages, allow routers to identify which networks are
accessible. You can configure the RAS 1500 to send and receive these RIP
messages on a per “user” (router) basis for the IP protocol. Enable
routing if you want to use dynamic routing; the default value is
none .
Table 18 Types of LAN-to-LAN Connections
Type Status
On-Demand This connection is established when a user attempts to access
an address that is located at a remote site. The connection is
closed after it has been idle for a specified interval.
Timed The connection is opened and closed at a preset time.
Continuous This connection is established by the system administrator and
is always open, as long as the RAS 1500 is on-line.
Manual This connection is established by the system administrator
using a dial command.