Security Measures
145
Instruction Manual - NXA-ENET8-POE+
Perform these steps to show user accounts:
1.
Click Security, User Accounts
.
2.
Select
Show
from the Action list.
Network Access (MAC Address Authentication)
Some devices connected to switch ports may not be able to support 802.1x authentication due to hardware or software limitations.
This is often true for devices such as network printers, IP phones, and some wireless access points. The switch enables network
access from these devices to be controlled by authenticating device MAC addresses with a central RADIUS server.
NOTE:
RADIUS authentication must be activated and configured properly for the MAC Address authentication feature to work
properly. (See the Configuring Remote Login Authentication Servers
NOTE:
MAC authentication cannot be configured on trunk ports.
Command Usage
MAC address authentication controls access to the network by authenticating the MAC address of each host that attempts
to connect to a switch port. Traffic received from a specific MAC address is forwarded by the switch only if the source MAC
address is successfully authenticated by a central RADIUS server. While authentication for a MAC address is in progress, all
traffic is blocked until authentication is completed. On successful authentication, the RADIUS server may optionally assign
VLAN and quality of service settings for the switch port.
When enabled on a port, the authentication process sends a Password Authentication Protocol (PAP) request to a
configured RADIUS server. The user name and password are both equal to the MAC address being authenticated. On the
RADIUS server, PAP user name and passwords must be configured in the MAC address format XX-XX-XX-XX-XX-XX (all in
upper case).
Authenticated MAC addresses are stored as dynamic entries in the switch secure MAC address table and are removed when
the aging time expires. The maximum number of secure MAC addresses supported for the switch system is 1024.
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.
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.
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]
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.
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:
FIG. 172
Showing User Accounts
Dynamic QoS Profiles
Profile
Attribute Syntax
Example
DiffServ
service-policy-in
=policy-map-name
service-policy-in=p1
Rate Limit
rate-limit-input
=rate
rate-limit-output
=rate
rate-limit-input=100 (kbps)
rate-limit-output=200 (kbps)
802.1p
switchport-priority-default
=value
switchport-priority-default=2
IP ACL
ip-access-group-in
=ip-acl-name
ip-access-group-in=ipv4acl
IPv6 ACL
ipv6-access-group-in
=ipv6-acl-name
ipv6-access-group-in=ipv6acl
MAC ACL
mac-access-group-in
=mac-acl-name
mac-access-group-in=macAcl