Cisco Systems 3750E manual Manually Assigning IP Information

Chapter 3 Assigning the Switch IP Address and Default Gateway

Assigning Switch Information

•It reads its host table by indexing its IP address 10.0.0.21 to its hostname (switcha).

•It reads the configuration file that corresponds to its hostname; for example, it reads switch1-confgfrom the TFTP server.

Switches B through D retrieve their configuration files and IP addresses in the same way.

Manually Assigning IP Information

Beginning in privileged EXEC mode, follow these steps to manually assign IP information to multiple switched virtual interfaces (SVIs):

Note If the switch is running the IP services feature set, you can also manually assign IP information to a port if you first put the port into Layer 3 mode by using the no switchport interface configuration command.

	Command	Purpose
Step 1
	configure terminal	Enter global configuration mode.
Step 2
	interface vlan vlan-id	Enter interface configuration mode, and enter the VLAN to which the IP
		information is assigned. The range is 1 to 4094.
Step 3
	ip address ip-address subnet-mask	Enter the IP address and subnet mask.
Step 4
	exit	Return to global configuration mode.
Step 5
	ip default-gateway ip-address	Enter the IP address of the next-hop router interface that is directly
		connected to the switch where a default gateway is being configured. The
		default gateway receives IP packets with unresolved destination IP
		addresses from the switch.
		Once the default gateway is configured, the switch has connectivity to the
		remote networks with which a host needs to communicate.
		Note When your switch is configured to route with IP, it does not need
		to have a default gateway set.
Step 6
	end	Return to privileged EXEC mode.
Step 7
	show interfaces vlan vlan-id	Verify the configured IP address.
Step 8
	show ip redirects	Verify the configured default gateway.
Step 9
	copy running-config startup-config	(Optional) Save your entries in the configuration file.

To remove the switch IP address, use the no ip address interface configuration command. If you are removing the address through a Telnet session, your connection to the switch will be lost. To remove the default gateway address, use the no ip default-gatewayglobal configuration command.

For information on setting the switch system name, protecting access to privileged EXEC commands, and setting time and calendar services, see Chapter 7, “Administering the Switch.”

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

3-10 OL-9775-02