Cisco Systems 3750E Manual De Usuario
3-10
Catalyst 3750-E and 3560-E Switch Software Configuration Guide
OL-9775-02
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-confg
from the TFTP server.
from 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):
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.
if you first put the port into Layer 3 mode by using the no switchport interface configuration command.
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-gateway global configuration command.
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-gateway global configuration command.
For information on setting the switch system name, protecting access to privileged EXEC commands,
and setting time and calendar services, see
and setting time and calendar services, see
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.
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.
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.
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.
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.