Configuring RADIUS Server Support for Switch Services
Configuring and Using RADIUS-Assigned Access Control Lists
RADIUS-assigned ACLs Static Port ACLs
Allows one RADIUS-assigned ACL per authenticated client
on a port. (Each such ACL filters traffic from a different,
authenticated client.)
Note: The switch provides ample resources for supporting
RADIUS-assigned ACLs and other features. However, the
actual number of ACLs supported depends on the switch’s
current feature configuration and the related resource
requirements. For more information, refer to the appendix
titled “Monitoring Resources” in the Management and
Configuration Guide for your switch.
Supports only extended ACLs. (Refer to Terminology.)
A given RADIUS-assigned ACL filters only the IP traffic
entering the switch from the authenticated client
corresponding to that ACL, and does not filter IP traffic
inbound from other authenticated clients.(The traffic source
is not a configurable setting.)
A given RADIUS-assigned ACL operates on a port to filter
only the IP traffic entering the switch from the authenticated
client corresponding to the ACL, and does not filter IP traffic
inbound from other authenticated clients. (The traffic
source is not a configurable setting.)
ACEs allow a counter (cnt) option that causes a counter to
increment when there is a packet match.
Supports static ACLs
Supports standard and extended ACLs
A static port ACL applied on a port filters all traffic entering
the switch through that port.
No client authentication requirement.
ACEs allow a log option that generates a log message
whenever there is a packet match with a “deny” ACE.
Caution Regarding
the Use of Source
Routing
Source routing is enabled by default on the switch and can be used to override
ACLs. For this reason, if you are using ACLs to enhance network security, the
recommended action is to use the no ip source-route command to disable
source routing on the switch. (If source routing is disabled in the running-
config file, the show running command includes “no ip source-route” in the
running-config file listing.)
How a RADIUS Server Applies a RADIUS-Assigned
ACL to a Switch Port
A RADIUS-assigned ACL configured on a RADIUS server is identified and
invoked by the unique credentials (username/password pair or a client MAC
address) of the specific client the ACL is designed to service. Where the
username/password pair is the selection criteria, the corresponding ACL can
also be used for a group of clients that all require the same ACL policy and use
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