Lucent Technologies Release 8.2 manual Connection When to Define IP Routes Type Host IP Routes

Networking Screens	A Screens Reference
IP Routing
add ip-route 3	Page 1 of 1
	IP ROUTING
Route Number: 3
Destination Node:
Gateway:
C-LAN Board:
Metric:
Route Type:

General Description IP routes are needed when switches are connected in an IP network and default gateways are not assigned and you want network nodes on different (sub)networks to communicate.

There are two type of IP routes — host and network. The following table summarizes when you would use each type:

Connection	When to Define IP Routes:
Type
	Host IP Routes
	Define a host IP route when endpoints are on different subnets
	and no default gateway is defined for the local node.
Ethernet	Network IP Routes
	Define network IP routes when you want hosts on the local
	subnet to communicate with hosts on some remote subnets but
	not others.
PPP	Define a host IP route when there are one or more intermediate
	nodes between endpoints.
	Network IP routes are not used with ppp connections.

In a LAN environment, if network security is a concern, not assigning default gateways limits internode access to paths that are explicitly administered.

Note: 1. If you set up an IP route from a node that is connected via a ppp link to the node you are using for the Gateway, you must first enable the link on the ppp data module.

Note: 2. If an entry in the Destination Node or Gateway field is rejected, check that the name has been entered on the Node Names screen. In particular, check that names are entered on the correct page of the Node Names screen — page 1 for AUDIX and MSA, pages 2–6 for a CMS server , a node in a switch, and router nodes.

Administration for Network Connectivity
555-233-504 — Issue 1 — April 2000	CID: 77730	251