C
HAPTER
25
| General Security Measures
Web Authentication
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EXAMPLE
Console#show network-access mac-address-table
---- ----------------- --------------- --------- -------------------------
Port MAC-Address RADIUS-Server Attribute Time
---- ----------------- --------------- --------- -------------------------
1/1 00-00-01-02-03-04 172.155.120.17 Static 00d06h32m50s
1/1 00-00-01-02-03-05 172.155.120.17 Dynamic 00d06h33m20s
1/1 00-00-01-02-03-06 172.155.120.17 Static 00d06h35m10s
1/3 00-00-01-02-03-07 172.155.120.17 Dynamic 00d06h34m20s
Console#
show network-
access mac-filter
Use this command to display information for entries in the MAC filter
tables.
SYNTAX
show network-access mac-filter [filter-id]
filter-id - Specifies a MAC address filter table. (Range: 1-64)
DEFAULT SETTING
Displays all filters.
COMMAND MODE
Privileged Exec
EXAMPLE
Consoleshow network-access mac-filter
Filter ID MAC Address MAC Mask
--------- ----------------- -----------------
1 00-00-01-02-03-08 FF-FF-FF-FF-FF-FF
Console#
WEB AUTHENTICATION
Web authentication allows stations to authenticate and access the network
in situations where 802.1X or Network Access authentication are infeasible
or impractical. The web authentication feature allows unauthenticated
hosts to request and receive a DHCP assigned IP address and perform DNS
queries. All other traffic, except for HTTP protocol traffic, is blocked. The
switch intercepts HTTP protocol traffic and redirects it to a switch-
generated web page that facilitates user name and password
authentication via RADIUS. Once authentication is successful, the web
browser is forwarded on to the originally requested web page. Successful
authentication is valid for all hosts connected to the port.
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