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Chapter 4 - RASFinder Software
You must now decide which protocol your LAN is using and choose that protocol from the main
menu. For example, to configure the RASFinder for IP, the Port IP Address and IP Mask fields in the
IP Port Setup dialog box display the information that was entered earlier for your Default Parameters
during initial software loading. When you click the IP Port WAN tabs, the RAS LAN IP address
appears in the Port address field for the WAN ports. For a routing application, you have to change the
Port IP Addresses so the LAN port has a different address from the WAN port addresses, and you
may have to check that the WAN IP port addresses are identical (for MLPPP) and that the Remote IP
Addresses of the Remote WAN ports are on a different network. If you are not using MLPPP, then you
have to assign each WAN port a different address and ensure that the remote WAN ports are on a
different network.
In our routing example (Figure 4-3), the Corporate LAN was set up with the Ethernet IP address
192.168.2.1 and the three WAN ports were given the IP address 192.168.3.10. Whenever they are
assigned the same IP address, the WAN ports are added together and look as one to the PSTN, and
the speed of the wide area network (normally the slowest cog in the system) is tripled to a value of
up to 168 Kbps.
After making these changes, you are returned to the main menu where you need to download this
new configuration to the RASFinder.
To set up the remote office LAN, go through the same process except point the WAN ports toward
the Corporate LAN. The remote WAN ports could be set up with an IP address of 192.168.3.20.
When this is accomplished, users at the remote office can receive their e-mail from the Corporate file
server and print their e-mail on their local printers.
MTASR3-200
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