Juniper EX3400 Features Guide

CHAPTER 8
Managing DHCP Clients
•
Using External AAA Authentication Services with DHCP on page 101
•
Configuring Passwords for Usernames on page 102
•
Creating Unique Usernames for DHCP Clients on page 103
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Specifying the Maximum Number of DHCP Clients Per Interface on page 106
•
DHCP Local Server Handling of Client Information Request Messages on page 107
•
Enabling Processing of Client Information Requests on page 108
Using External AAA Authentication Services with DHCP
The extended DHCP local server, including DHCPv6 local server, and the extended DHCP
relay agent, including DHCPv6 relay agent, support the use of external AAA authentication
services, such as RADIUS, to authenticate DHCP clients. When the extended DHCP local
server or relay agent receives a discover PDU from a client, the extended DHCP application
contacts the AAA server to authenticate the DHCP client. The extended DHCP application
can obtain client addresses and DHCP configuration options from the external AAA
authentication server.
NOTE: This section uses the term extended DHCP application to refer to both
the extended DHCP local server and the extended DHCP relay agent.
The external authentication feature also supports AAA directed logout. If the external
AAA service supports a user logout directive, the extended DHCP application honors the
logout and responds as though it were requested by a CLI management command. All
of the client state information and allocated resources are deleted at logout. The extended
DHCP application supports directed logout using the list of configured authentication
servers you specify with the authentication-server statement at the [edit access profile
profile-name] hierarchy level.
You can configure either global authentication support or group-specific support.
You must configure the username-include statement to enable the use of authentication.
The password statement is not required and does not cause DHCP to use authentication
if the username-include statement is not included.
101Copyright © 2017, Juniper Networks, Inc.

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