Juniper EX3400 Features Guide

To enable DHCP relay proxy mode:
1. Specify that you want to configure override options.
[edit forwarding-options dhcp-relay]
user@host# edit overrides
2. Enable DHCP relay proxy mode.
[edit forwarding-options dhcp-relay overrides]
user@host# set proxy-mode
Related
Documentation
DHCP Relay Proxy Overview on page 51•
• Overriding the Default DHCP Relay Configuration Settings on page 68
Example: Configuring DHCP Relay Agent Selective Traffic Processing Based on DHCP
Option Strings
This example shows how to configure DHCP relay agent to use DHCP option strings to
selectively identify, filter, and process client traffic.
•
Requirements on page 53
•
Overview on page 53
•
Configuration on page 54
•
Verification on page 56
Requirements
This example uses the following hardware and software components:
•
MX Series 3D Universal Edge Routers or EX Series Switches
Before you configure DHCP relay agent selective processing support, be sure you:
•
Configure DHCP relay agent.
See “Extended DHCP Relay Agent Overview” on page 46.
•
(Optional) Configure a named DHCP local server group if you want to forward client
traffic to a server group.
See “Grouping Interfaces with Common DHCP Configurations” on page 89.
Overview
In this example, you configure DHCP relay agent to use DHCP option strings in client
packets to selectively identify, filter, and process client traffic. To configure selective
processing, you perform the following procedures:
53Copyright © 2017, Juniper Networks, Inc.
Chapter 4: DHCP Relay Agent

Juniper EX3400 Specifications

General

Switch type	Managed
Switch layer	L2/L3
Quality of Service (QoS) support	Yes
Safety	UL-UL60950-1, C-UL CAN/CSA 22.2 No.60950-1, TUV/GS to EN 60950-1, CB-IEC60950-1, EN 60825-1
Form factor	1U
Product color	Black
Electromagnetic compatibility	FCC 47CFR 15 A, EN 55022 A, ICES-003 A, VCCI A, AS/NZS CISPR 22 A, CISPR 22 A, EN 55024, EN 300386, CE
SFP+ module slots quantity	4
QSFP+ module slots quantity	2
Installed SFP+ modules quantity	0
Basic switching RJ-45 Ethernet ports type	Gigabit Ethernet (10/100/1000)
Basic switching RJ-45 Ethernet ports quantity	48
Memory type	DRAM
Noise level	35 dB
Flash memory	2000 MB
Processor frequency	1000 MHz
Virtual stacking (units)	10
Throughput	250 Mpps
Jumbo frames	9216
MAC address table	32000 entries
Number of VLANs	4093
Networking standards	IEEE 802.1D, IEEE 802.1Q, IEEE 802.1ab, IEEE 802.1p, IEEE 802.1s, IEEE 802.1w, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3ad, IEEE 802.3ae, IEEE 802.3u, IEEE 802.3z
Virtual LAN features	Port-based VLAN
Copper ethernet cabling technology	10BASE-T, 100BASE-T, 1000BASE-T
Power consumption (max)	120 W
Number of power supply units	1
Operating altitude	0 - 3048 m
Non-operating altitude	3048 - 4877 m
Storage temperature (T-T)	-40 - 70 °C
Operating temperature (T-T)	0 - 45 °C
Storage relative humidity (H-H)	0 - 95 %
Operating relative humidity (H-H)	10 - 85 %
DHCP features	DHCP server, DHCP client
Authentication	MAC-based authentication, Port-based authentication
Security algorithms	802.1x RADIUS, HTTPS, SNMP, SSH-2
Fiber ethernet cabling technology	1000BASE-X

Weight and Dimensions

Depth	350 mm
Width	437 mm
Height	44 mm
Weight	5740 g