Command Line Reference Guide

Version Description
9.2(1.0) Introduced on the Z9500.
8.3.19.0 Introduced on the S4820T.
8.3.11.1 Introduced on the Z9000.
8.3.7.0 Introduced on the S4810.
8.1.1.0 Introduced on the E-Series ExaScale.
7.6.1.0 Introduced on the S-Series.
7.5.1.0 Introduced on the C-Series.
Usage
Information
You must be in INTERFACE mode in order to configure an interface to dynamically
acquire an IP address from a DHCP server.
Use the no ip address dhcp in INTERFACE mode to:
• Release the IP address that was dynamically acquired from a DHCP server from
the interface.
• Disable the DHCP client on the interface so it cannot acquire a dynamic IP
address from a DHCP server.
• Stop DHCP packet transactions on the interface.
To release the IP address dynamically acquired from a DHCP server and allow an
interface to acquire a new DHCP server-assigned address, enter the release
dhcp interface
type slot/port command in EXEC Privilege mode. To
acquire a new server-assigned IP address, enter the renew dhcp interface
type slot/port command in EXEC Privilege mode or the ip address dhcp
command in INTERFACE Configuration mode.
ip address dhcp relay information-option
Include the relay-information option (option 81) in DHCP packets sent by the client. Some DHCP servers
can be configured to allocate IP addresses based on option 81.
Z9500
Syntax
ip address dhcp relay information-option [remote-id [hostname |
mac | remote-id]
Parameters
remote-id
hostname
Set the hostname as the remote ID in Option 82.
remote-id
remote-id
Enter the name to be used as the remote ID in Option 82;
maximum: 64 characters.
remote-id mac Use the chassis MAC address as the remote ID in Option 82.
Default Option 82 uses the chassis MAC address as the remote ID.
Dynamic Host Configuration Protocol (DHCP)
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