Chapter 12
| Security Measures
Network Access (MAC Address Authentication)
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Configured static MAC addresses are added to the secure address table when
seen on a switch port. Static addresses are treated as authenticated without
sending a request to a RADIUS server.
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When port status changes to down, all MAC addresses mapped to that port are
cleared from the secure MAC address table. Static VLAN assignments are not
restored.
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The RADIUS server may optionally return a VLAN identifier list to be applied to
the switch port. The following attributes need to be configured on the RADIUS
server.
Tunnel-Type = VLAN
■
Tunnel-Medium-Type = 802
■
Tunnel-Private-Group-ID = 1u,2t [VLAN ID list]
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The VLAN identifier list is carried in the RADIUS "Tunnel-Private-Group-ID"
attribute. The VLAN list can contain multiple VLAN identifiers in the format
"1u,2t,3u" where "u" indicates an untagged VLAN and "t" a tagged VLAN.
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The RADIUS server may optionally return dynamic QoS assignments to be
applied to a switch port for an authenticated user. The "Filter-ID" attribute
(attribute 11) can be configured on the RADIUS server to pass the following
QoS information:
Table 15: Dynamic QoS Profiles
Profile
Attribute Syntax
DiffServ
service-policy-in=policy-map-name
Rate Limit
rate-limit-input=rate
rate-limit-output=rate
802.1p
switchport-priority-default=value
IP ACL
ip-access-group-in=ip-acl-name
IPv6 ACL
ipv6-access-group-in=ipv6-acl-name
MAC ACL
mac-access-group-in=mac-acl-name
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Multiple profiles can be specified in the Filter-ID attribute by using a semicolon
to separate each profile.
For example, the attribute "service-policy-in=pp1;rate-limit-input=100"
specifies that the diffserv profile name is "pp1, " and the ingress rate limit profile
value is 100 kbps.
◆
If duplicate profiles are passed in the Filter-ID attribute, then only the first
profile is used.
For example, if the attribute is "service-policy-in=p1;service-policy-in=p2", then
the switch applies only the DiffServ profile "p1. "
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Example
service-policy-in=p1
rate-limit-input=100 (kbps)
rate-limit-output=200 (kbps)
switchport-priority-default=2
ip-access-group-in=ipv4acl
ipv6-access-group-in=ipv6acl
mac-access-group-in=macAcl