Juniper EX3400

Table 11: Actions for DHCP Relay Agent Snooped Packets When DHCP
Snooping Is Enabled
Action on
Non-Configured
InterfacesAction on Configured Interfaces
forward-snooped-clients
Configuration
droppedsnooped packets result in subscriber
(DHCP client) creation
forward-snooped-clients not
configured
forwardedforwardedall-interfaces
droppedforwardedconfigured-interfaces
forwardedsnooped packets result in subscriber
(DHCP client) creation
non-configured-interfaces
Table 12: Actions for DHCP Relay Agent Snooped Packets When DHCP
Snooping Is Disabled
Action on Non-Configured
Interfaces
Action on Configured
Interfaces
forward-snooped-clients
Configuration
droppeddroppedforward-snooped-clients not
configured
forwardeddroppedall-interfaces
droppeddroppedconfigured-interfaces
forwardeddroppednon-configured-interfaces
Table 13: Actions for Snooped BOOTREPLY Packets
Actionforward-snooped-clients Configuration
snooped BOOTREPLY packets dropped if client
is not found
forward-snooped-clients not configured
snooped BOOTREPLY packets forwarded if
client is not found
forward-snooped-clients all configurations
To configure DHCP snooped packet forwarding and BOOTREPLY snooped packet
forwarding for DHCP relay agent:
1. Specify that you want to configure DHCP relay agent.
[edit]
user@host# edit forwarding-options dhcp-relay
2. Enable DHCP snooped packet forwarding.
[edit forwarding-options dhcp-relay]
Copyright © 2017, Juniper Networks, Inc.78
DHCP and Other System Services Feature Guide for EX2300, EX3400, and EX4300 Switches