Cisco 3750G - Catalyst Integrated Wireless LAN Controller, Руководство по настройке

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Catalyst 3750 Switch Software Configuration Guide
OL-8550-02
Chapter 1 Overview
Features
Security Features
The switch ships with these security features:
•
Web authentication to allow a supplicant (client) that does not support IEEE 802.1x functionality to
be authenticated using a web browser
• MAC authentication bypass (MAB) aging timer to detect inactive hosts that have authenticated after
they have authenticated by using MAB
•
Password-protected access (read-only and read-write access) to management interfaces (device
manager, Network Assistant, and the CLI) for protection against unauthorized configuration
changes
• Multilevel security for a choice of security level, notification, and resulting actions
•
Static MAC addressing for ensuring security
• Protected port option for restricting the forwarding of traffic to designated ports on the same switch
•
Port security option for limiting and identifying MAC addresses of the stations allowed to access
the port
• Port security aging to set the aging time for secure addresses on a port
•
BPDU guard for shutting down a Port Fast-configured port when an invalid configuration occurs
• Standard and extended IP access control lists (ACLs) for defining security policies in both directions
on routed interfaces (router ACLs) and VLANs and inbound on Layer 2 interfaces (port ACLs)
•
Extended MAC access control lists for defining security policies in the inbound direction on Layer 2
interfaces
• VLAN ACLs (VLAN maps) for providing intra-VLAN security by filtering traffic based on
information in the MAC, IP, and TCP/UDP headers
•
Source and destination MAC-based ACLs for filtering non-IP traffic
• IPv6 ACLs to be applied to interfaces to filter IPv6 traffic:
•
DHCP snooping to filter untrusted DHCP messages between untrusted hosts and DHCP servers
• IP source guard to restrict traffic on nonrouted interfaces by filtering traffic based on the DHCP
snooping database and IP source bindings
•
Dynamic ARP inspection to prevent malicious attacks on the switch by not relaying invalid ARP
requests and responses to other ports in the same VLAN
• IEEE 802.1Q tunneling so that customers with users at remote sites across a service-provider
network can keep VLANs segregated from other customers and Layer 2 protocol tunneling to ensure
that the customer’s network has complete STP, CDP, and VTP information about all users
•
Layer 2 point-to-point tunneling to facilitate the automatic creation of EtherChannels
• Layer 2 protocol tunneling bypass feature to provide interoperability with third-party vendors
•
IEEE 802.1x port-based authentication to prevent unauthorized devices (clients) from gaining
access to the network. These features are supported:
– Multidomain authentication (MDA) to allow both a data device and a voice device, such as an
IP phone (Cisco or non-Cisco), to independently authenticate on the same IEEE 802.1x-enabled
switch port
–
VLAN assignment for restricting IEEE 802.1x-authenticated users to a specified VLAN
– Port security for controlling access to IEEE 802.1x ports