Cabletron Systems CSX100 series, User Manual, Page: 46 / 153

ISDN Router 32
Servers are identified with internal network numbers. This is a logical
network number that identifies the individual server. For a local router
to access a server beyond the remote router, you will specify a route using
the internal network number of a server. To seed the routing table to
access a network segment, you will specify the external network number
of the LAN segment. The network number in the SAP table is the
internal network number of the server.
Node Numbers
Servers can have internal and external node numbers. The internal node
number is a logical number assigned by the system administrator to the
server. The external node number is the MAC address of the NIC in the
server. When adding SAP services to the SAP table, internal node
numbers are used.
Collect Your Network Information
You should obtain, define, and specify information about the target router’s
network before you start configuring your router. This simple step will save
you time and make the configuration process a lot easier. Use the Network
Information Worksheets in Appendix C to collect your network information.
For the Target router, you need to define and obtain:
•
Its own name and security password (defined by the user)
•
ISDN line information (obtained from the ISDN service provider)
•
The Ethernet LAN IP and/or IPX address (defined/specified by the user
or provided by the network administrator)
In the Target’s remote database, you need to identify:
•
The remote router(s)
•
Their routing and bridging capability
•
ISDN phone numbers
•
Addressing and security information
If you are using IP routing, you also need to decide if you will use Internet
Firewall filtering.