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DI-308 ISDN Remote Router
Remote Operation Overview
The DI-308 is very flexible and can be configured for a variety of remote
connections. Since configuring the router can be quite complex - depending on the
number and type of remote connection(s) you wish to implement – we have
described some of the basic functions and procedures below.
Dial-In User Connections
Dial-in users are defined as a single user on a computer, such as a person working at
home, who dials into the office to use network resources. In almost all cases, a Dial-
In User Profile needs to be set up for each user who will dial in to the router so the
router can tailor the connection for each user. Once this is done, the remote user will
be able to use network resources as if he were connected locally. When the user dials
into the DI-308, the call comes into the D-channel and after answering the phone, the
DI-308:
1. Identifies the Username and Password using the authentication protocol defined in the Interface
Configuration, ISDN submenu. The dial-in user is not prompted for this information, but must
enter it into his dialing software before dialing.
2. Checks the Username and Password against those defined in the Dial-In User Profiles and Remote
Network Profiles.
3. Assuming a matching Dial-In User Profile is found, the router may configure the IP address of the
remote station (as defined in the Dial-In User Profile).
4. Configures a dial-in Interface (a virtual circuit) to handle the connection.
5. Establishes the connection on whichever B-channel (physical port) is open by mapping the dial-in
interface to that port.
6. In the case where the Dial-In User does not need to supply a Username and Password (Auth Type
is set to None in the Interface Configuration submenu) the remote computer must have its own
IP address.
Remote Network Connections
Remote networks are defined as other networks (LANs) that have WAN connections
using a router, Internet server, network modem or similar device (in this document
however, we will assume the remote device is a router). In almost all cases, a
Remote Network Profile needs to be set up for each network that will connect to the
DI-308 via the ISDN lines. The Remote Network Profiles are necessary for the
router to identify and tailor the connection to the remote network's router. Once this
is done, a connection between the two routers can be made and computers on each
network can communicate with each other.
Dial-In Network Connections
A dial-in network connection is very similar to a dial-in user connection. When the
remote router dials into the DI-308, the call comes into the D-channel and after
answering the phone, the DI-308:
1. Identifies the Username and Password using the authentication protocol defined in the Interface
Configuration, ISDN submenu.
2. Checks the Username and Password against those defined in the Dial-In User Profiles and Remote
Network Profiles.
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