3Com 09-1324-000 manual Assigning Internet, Addresses to a Bridge

6-20CHAPTER 6: CONFIGURING BASIC SETTINGS

Assigning Internet	This section describes how to assign one or more Internet addresses to the system
Addresses	using the NETaddr parameter in the IP Service. Before you assign an Internet
	address, you must determine:
	■ Whether you want your network to connect to the Internet, and how to obtain
		a unique Internet address.
	■ Whether you want to use the system as a bridge, a router, or a bridge/router.
	■ Whether you need subnet addressing.
	If you have already decided on these issues, proceed to “Assigning Internet
	Addresses to a Bridge” on page 6-20or to “Assigning Internet Addresses to a
	Router” on page 6-21.If you need more information to make your decision, refer
	to “Obtaining an Internet Address” on page 6-21and to the subnet information
	in the Using NETBuilder Family Software.
Assigning Internet	Even though a bridge does not route IP traffic, it needs an Internet address to
Addresses to a Bridge	participate in network management and to be accessible from other devices
	through Telnet or the SNMP.
	When assigning an Internet address to an entire bridge, assign the address to
	port 0 using:
	SETDefault !0 -IP NETaddr = <IP address>
	An Internet address assigned to port 0 is considered an Internet address for the
	entire bridge.
	The following example illustrates how to assign an Internet address to a bridge.
Example	Figure 6-3shows a configuration in which you need to assign an Internet address
	to a bridge. Hosts A and B are two hosts belonging to the same IP network,
	network 10. The IP host on Network A has an Internet address 10.0.0.1, and the
	one on Network B has an Internet address 10.0.0.2. The bridge forwards packets
	between these segments. To allow communication between the hosts and the
	bridge, ports 1 and 2 must reside on the same network. Assigning the same
	network number to two or more bridge ports is prohibited, so you must assign the
	address to the entire bridge, entering a command similar to the following:
	SETDefault !0 -IP NETaddr = 10.0.0.3
		IP address
	IP		A	IPX			OSI
		= 10.0.0.1
	host				host			host
		Segment A
		Assign IP address 10.0.0.3 to Port 0					Port 1
					Bridge
		for the IP hosts to access the bridge
	Segment B						Port 2

IP address		B
	IP		IPX
= 10.0.0.2
	host		host

Figure 6-3Assigning an IP Address to the Entire Bridge

OSI host

After assigning an Internet address to the bridge, proceed to Chapter 1 in the Using NETBuilder Family Software.