3Com 2500 manual Administering Ip Routing, interfaces

9

ADMINISTERING IP ROUTING

	This chapter describes how to set up your LANplex® system to use the
	Internet Protocol (IP). For more information about how IP works, see Part III
	of this guide.
	You can display or configure the following IP characteristics on your
	LANplex system:
■	IP interfaces
■	Routes
■ Address Resolution Protocol (ARP) cache
■	UDP Helper
■ ATM ARP Server (for LANplex systems with ATM modules)
■	IP Routing
■	ICMP Router Discovery
■ Routing Information Protocol (RIP)
■	Ping
■	IP statistics
Administering	You can define two types of IP interfaces through LANplex Extended
interfaces	Switching software: IP VLAN interfaces and IP LIS interfaces. This section
	describes these interfaces and how to administer them.

An IP VLAN interface defines the relationship between an IP Virtual LAN (VLAN) and the subnets in the IP network. Every IP VLAN interface has one IP VLAN associated with it. Each Ethernet or FDDI switching module has one interface defined for each subnet directly connected to it. You must first define a VLAN, as described in Chapter 8, Administering VLANs, before you define an associated IP VLAN interface.