90
•
To allow a user to obtain a dynamic IP address before it passes 802.1X authentication, make sure
the DHCP server is on the free IP segment.
•
The server that provides the redirect URL must be on the free IP accessible to unauthenticated users.
•
To avoid using up ACL resources when a large number of EAD users exist, you can shorten the EAD
rule timer.
To configure the EAD assistant feature:
Step Command
Remarks
1.
Enter system view.
system-view
N/A
2.
Enable EAD assistant.
dot1x ead-assistant enable
By default, this feature is disabled.
3.
Configure a free IP.
dot1x ead-assistant free-ip
ip-address
{
mask-length
|
mask-address
}
By default, no free IP is configured.
4.
(Optional.) Configure the
redirect URL.
dot1x ead-assistant url
url-string
By default, no redirect URL is configured.
Configure the redirect URL if users will
use Web browsers to access the network.
5.
(Optional.) Set the EAD
rule timer.
dot1x timer ead-timeout
ead-timeout-value
The default setting is 30 minutes.
Displaying and maintaining 802.1X
Execute the
display
commands in any view and
reset
commands in user view.
Task Command
Display 802.1X session information, statistics,
or configuration information of specified or all
ports.
display
dot1x
[
sessions
|
statistics
] [
interface
interface-type
interface-number
]
Display online 802.1X user information.
display dot1x connection
[
interface
interface-type
interface-number
|
slot
slot-number
|
user-mac
mac-addr
|
user-name
name-string
]
Clear 802.1X statistics.
reset
dot1x statistics
[
interface
interface-type
interface-number
]
Remove users from the 802.1X guest VLAN on
a port.
reset dot1x guest-vlan interface
interface-type
interface-number
[
mac-address
mac-address
]
802.1X authentication configuration examples
Basic 802.1X authentication configuration example
Network requirements
As shown in
, the access device performs 802.1X authentication for users that connect to port
Ten-GigabitEthernet 1/0/1. Implement MAC-based access control on the port, so the logoff of one user
does not affect other online 802.1X users.