Juniper EX3400 Features Manual
Download Features manual of Juniper EX2300 Network Router, Switch for Free or View it Online on All-Guides.com.
Brand: Juniper
Category: Network Router , Switch
Type: Features manual
Model: Juniper EX2300 , Juniper EX4300 , Juniper EX3400
Pages: 476
[edit forwarding-options dhcp-relay group boston]
user@host# edit overrides
3. Disable automatic binding for the group.
[edit forwarding-options dhcp-relay group boston overrides]
user@host# set no-bind-on-request
To disable automatic binding of stray requests on a specific interface:
1. Specify the named group of which the interface is a member.
[edit forwarding-options dhcp-relay]
user@host# edit group boston
2. Specify the interface on which you want to disable automatic binding.
[edit forwarding-options dhcp-relay group boston]
user@host# edit interface fe-1/0/1.2
3. Specify that you want to configure overrides.
[edit forwarding-options dhcp-relay group boston interface fe-1/0/1.2]
user@host# edit overrides
4. Disable automatic binding on the interface.
[edit forwarding-options dhcp-relay group boston interface fe-1/0/1.2 overrides]
user@host# set no-bind-on-request
Related
Documentation
Extended DHCP Relay Agent Overview on page 46•
• Overriding the Default DHCP Relay Configuration Settings on page 68
Using DHCP Relay Agent Option 82 Information
Subscriber management enables you to configure the DHCP relay agent to include
additional option 82 information in the DHCP packets that the relay agent receives from
clients and forwards to a DHCP server. The DHCP server uses the additional information
to determine the IP address to assign to the client. The server might also use the
information for other purposes—for example, to determine which services to grant the
client, or to provide additional security against threats such as address spoofing. The
DHCP server sends its reply back to the DHCP relay agent, and the agent removes the
option 82 information from the message and forwards the packet to the client.
To configure support for the DHCP relay agent information option 82, you use the
relay-option-82 statement. You can configure the DHCP relay agent to include the
following suboptions in the packet the relay agent sends to the DHCP server:
•
Agent Circuit ID (suboption 1)—An ASCII string that identifies the interface on which
the client DHCP packet is received.
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DHCP and Other System Services Feature Guide for EX2300, EX3400, and EX4300 Switches