User Manual

Basic Remote Networking IP Routing
4-8
Note: To configure authentication, see Configuring Incoming Connections on page 4-
13 or Chapter 11, Security.
4.4.3 Routes for Remote User Dial-ins
The SCS automatically generates routes for remote nodes when the node connects. These routes are deleted
when the connection is terminated.
If the remote node receives a dynamic address from the SCS’s IP address pool, a host route is entered for
that address. If proxy ARPing is enabled (see Proxy ARP on page 6-18), the SCS will proxy-ARP for the
address. See Types of Routes on page 6-16 for more information.
If a remote node uses an IP address that is not on the Ethernet’s IP network, then the SCS will enter a
network route for that node. For example, if the SCS’s Ethernet IP address is 192.0.1.4, and a node selects
the address 192.0.2.6, the SCS will enter a route to 192.0.2.0 in its routing table.
Remote nodes do not have to make routing decisions, as they can only send network packets to the SCS.
Therefore, most remote nodes do not need to receive RIP packets. Sites that only support remote nodes may
turn off RIP to reduce traffic on the connection.
Figure 4-10: Disabling RIP Packets
Note: For more information about disabling RIP, see Define Site IP on page 12-142.
4.4.4 Configuring RIP for Sites
RIP (Routing Information Protocol) packets enable the SCS to broadcast its known routes and receive
routing information from other routers. Each site may configure RIP in a number of ways.
4.4.4.1 Disabling RIP
By default, SCS sites will both listen for and send RIP packets. However, in some situations, RIP should be
disabled. For example, if the routers on both sides of a link have been pre-configured with all necessary
routing information (with static routes)
Figure 4-11: Disabling RIP
If you want the SCS to either listen for or send RIP packets, but not both, you can selectively disable one or
the other. The following example turns off listening for RIP packets.
Figure 4-12: Disabling RIP Listen
Local>> DEFINE SITE IP RIP DISABLED
Local>> DEFINE SITE irvine IP RIP DISABLED
Local>> DEFINE SITE irvine IP RIP LISTEN DISABLED