Operation Manual

Example 2 Large Network with Multiple Segments
NT/MPRI – 3 Configuration and Operation of the NT/MPRI: The Basics 38
Step 1:
After installing the NT/MPRI, create a new call destination called “Am-
sterdam”. Under “Static Route”, enter the following values: network
address “192.168.10.0”, mask “24”. This instructs the NT/MPRI to for-
ward all packets with the IP addresses 192.168.10.x to the call destina-
tion “Amsterdam”.
Step 2:
If RIP is used no configuration is necessary in this step.
If no RIP is used in the network, first all local network segments must
be registered as “Additional Local Routes for IP” in the LAN “Berlin”
(“Server Settings / General / IP Routing over the LAN”) so that packets
arriving over the ISDN link also can be forwarded to this goal. For each
route, enter the network address, the mask, and, under “Next Hop”,
the IP address of the local router (in this example: 192.168.1.4”).
On the other router in the LAN, define a route to the network address
“192.168.10.0” and enter the IP address of the NT/MPRI computer as
the next hop (in the example this is “192.168.1.3”).
Step 3:
Define a call destination “Berlin” on the Amsterdam NT/MPRI. In order
for packets from Amsterdam to reach their destination in Berlin reli-
ably, static routes must be defined for all network segments in Berlin.
First enter the first WAN route at “Static Route” and then save the call
destination. The remaining IP routes are entered in the IP settings (“IP”
button).
A simpler solution is to accept the default route (network address
0.0.0.0, mask 0). This means that all packets for destinations outside
the local network are sent to the call destination “Berlin” from where
the Berlin NT/MPRI computer either delivers them to hosts in its own
segments or forwards them to the next router.
Step 4:
Now test whether you can ping a workstation in the Amsterdam net-
work from a workstation in the segment with two workstations. If you
get a response, your configuration works.
ntmpri-e.book Seite 38 Donnerstag, 28. Februar 2002 11:26 11