Policy Framework Configuration Guide - Juniper Networks

Chapter 16: Summary of Traffic Sampling, Forwarding, and Monitoring Configuration Statements
forwarding-options
Syntax forwarding-options { ... }
Hierarchy Level
[edit]
Release Information Statement introduced before Junos OS Release 7.4.
Description
Configure traffic forwarding.
The statements are explained separately.
Required Privilege
Level
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
group (DHCP Spoofing Prevention)
Syntax group group-name {
interface interface-name;
}
Hierarchy Level
[edit routing-instances routing-instance-name bridge-domains bridge-domain-name
forwarding-options dhcp-relay],
[edit routing-instances routing-instance-name forwarding-options dhcp-relay]
Release Information
Description
Statement introduced in Junos OS Release 9.4 (MX Series routers only).
Configure Dynamic Host Configuration Protocol (DHCP) snooping on the router. When
acting as a snooping agent, the MX Series router typically is located between the client
and the DHCP relay agent. It creates filters by “snooping” DHCP messages and binding
DHCP-issued IP addresses with the MAC address of the client. These filters help prevent
DHCP spoofing.
Configure DHCP snooping by including the appropriate interfaces under the group
statement.
Required Privilege
Level
Related
Documentation
interface—To view this statement in the configuration.
interface-control—To add this statement to the configuration.
• Preventing DHCP Spoofing on MX Series Ethernet Services Routers on page 374
Copyright © 2010, Juniper Networks, Inc.
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