IPv4 Routing | 423
To assign an IP address to an interface, use these commands in the following sequence, starting in the
CONFIGURATION mode:
To view the configuration, use the
show config command (Figure 246) in the INTERFACE mode or show
ip interface
in the EXEC privilege mode (Figure 247).
Figure 20-1. show config Command Example in the INTERFACE Mode
Step Command Syntax Command Mode Purpose
1
interface interface CONFIGURATION Enter the keyword interface followed by the type of interface
and slot/port information:
• For a 1-Gigabit Ethernet interface, enter the keyword
GigabitEthernet followed by the slot/port information.
• For a Loopback interface, enter the keyword loopback
followed by a number from 0 to 16383.
• For the Management interface on the RPM, enter the
keyword
ManagementEthernet followed by the slot/port
information. The slot range is 0-1 and the port range is 0.
• For a port channel interface, enter the keyword
port-channel followed by a number from 1 to 255 for
TeraScale and ExaScale.
• For a SONET interface, enter the keyword sonet followed
by the slot/port information.
• For a 10-Gigabit Ethernet interface, enter the keyword
TenGigabitEthernet followed by the slot/port
information.
• For a VLAN interface, enter the keyword vlan followed
by a number from 1 to 4094.
• For a 40-Gigabit Ethernet interface, enter the keyword
fortyGigE followed by the slot/port information.
2
no shutdown
INTERFACE Enable the interface.
3
ip address ip-address
mask [secondary]
INTERFACE Configure a primary IP address and mask on the interface.
• ip-address mask: IP address must be in dotted decimal
format (A.B.C.D) and the mask must be in slash
prefix-length format (/24).
Add the keyword secondary if the IP address is the
interface’s backup IP address. You can configure up to eight
secondary IP addresses.
FTOS(conf-if)#show conf
!
interface GigabitEthernet 0/0
ip address 10.11.1.1/24
no shutdown
!
FTOS(conf-if)#
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