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Chapter 4 - RASFinder Software
normally used when a part of an internetwork can be reached by only one particular path. Static
routes are manually configured routes that specify the transmission path a data packet must follow
based on the data packet's destination address. A static route could enable a client pc on the
manufacturing network to send a document to the printer on the corporate network. This static route
is shown in the top network in Figure 4-4. A static route can also use an unnumbered link to provide
a particular route from a remote client device to a specific device on another network. The
unnumbered link is shown in the middle network in Figure 4-4.
Figure 4-4. Static Routes
In our first example above, where a data packet from the remote client PC on the manufacturing
network is being sent to the corporate printer, the Static Routes Setup dialog box would contain an
address of 200.1.1.0 in the IP Address field and a gateway address of 200.2.10.2. The Unnumbered
option would be left unchecked in this example. The IP Address field contains the address of the
target host or network, a PC on the manufacturing network. The Gateway Address is the address of
the local router on the manufacturing network (200.2.10.2) on the next hop toward the target host.
The Address Mask is the IP subnetwork mask (255.255.255.0) of the target host. The Port field is
inactive, greyed out in this example. Metric is the hop count (1) to the target host.
Now, for our second example of an unnumbered link where we want a server on a remote network to
appear as a device on a router on the corporate LAN that is pointed toward the Internet. Let say that
the Manuals Server on the Publications Network contains the released manuals that a customer can
down load from the corporate network. So in order to have the Manuals Server appear on the
Internet, we need to set up the corporate RASFinder with an unnumbered link and for the purposes
of our example, lets use WAN 2. Also, the Internet router on the Corporate LAN will have a default
route of 192.168.2.224 with a subnet Address Mask of 255.255.255.224, and a Gateway Address of
192.168.2.10.
So, for this application to work, you need to set up a default route on the Corporate RASFinder of
MTASR3-200
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