Chapter 81 802.1X And Mac Radius Authentication Overview - Dell PowerConnect J-EX4200-24T Software Manual

CHAPTER 81
802.1X and MAC RADIUS Authentication
Overview
Security Features for J-EX Series Switches Overview
Security Features for J-EX Series Switches Overview on page 2245
Understanding Authentication on J-EX Series Switches on page 2248
802.1X for J-EX Series Switches Overview on page 2253
Authentication Process Flow for EX Series Switches on page 2255
Understanding Server Fail Fallback and Authentication on J-EX Series
Switches on page 2258
Understanding Dynamic VLANs for 802.1X on J-EX Series Switches on page 2259
Understanding Guest VLANs for 802.1X on J-EX Series Switches on page 2259
Understanding 802.1X and RADIUS Accounting on J-EX Series Switches on page 2260
Understanding 802.1X and LLDP and LLDP-MED on J-EX Series Switches on page 2261
Understanding 802.1X and VoIP on J-EX Series Switches on page 2263
Understanding 802.1X and VSAs on J-EX Series Switches on page 2266
The Junos operating system (Junos OS) is a network operating system that has been
hardened through the separation of control forwarding and services planes, with each
function running in protected memory. The control-plane CPU is protected by rate limiting,
routing policy, and firewall filters to ensure switch uptime even under severe attack. In
addition, the switches fully integrate with the Juniper Networks Unified Access Control
(UAC) product to provide both standards-based 802.1X port-level access and Layer 2
through Layer 4 policy enforcement based on user identity. Access port security features
such as dynamic Address Resolution Protocol (ARP) inspection, DHCP snooping, and
MAC limiting are controlled through a single Junos OS CLI command.
J-EX Series Ethernet Switches provide the following hardware and software security
features:
Console Port—Allows use of the console port to connect to the Routing Engine through
an RJ-45 cable. You then use the command-line interface (CLI) to configure the switch.
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