Contents

MAC authentication commands· 1

display mac-authentication·· 1

display mac-authentication connection·· 3

mac-authentication·· 5

mac-authentication domain·· 6

mac-authentication host-mode· 7

mac-authentication max-user 7

mac-authentication offline-detect enable· 8

mac-authentication re-authenticate server-unreachable keep-online· 9

mac-authentication timer 10

mac-authentication user-name-format 11

reset mac-authentication statistics· 12

 

MAC authentication commands

display mac-authentication

Use display mac-authentication to display MAC authentication settings and statistics.

Syntax

display mac-authentication [ interface interface-type interface-number ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If the specified port is not enabled with MAC authentication, this command displays only global MAC authentication information. If you do not specify a port, this command displays all MAC authentication information, including the global settings, port-specific settings, MAC authentication statistics, and online user statistics.

Examples

# Display all MAC authentication settings and statistics.

<Sysname> display mac-authentication

Global MAC authentication parameters:

   MAC authentication           : Enabled

   Username format              : MAC address in lowercase(xxxxxxxxxxxx)

           Username             : mac

           Password             : Not configured

   Offline detect period        : 300 s

   Quiet period                 : 60 s

   Server timeout               : 100 s

   Authentication domain        : Not configured, use default domain

 Online MAC-auth wired users    : 1

 

 Silent MAC users:

          MAC address       VLAN ID  From port               Port index

          0001-0000-0001    100      GE3/1/2                 21

 

 GigabitEthernet3/1/1  is link-up

   MAC authentication         : Enabled

   Authentication domain      : Not configured

   Re-auth server-unreachable : Logoff

   Guest VLAN                 : 100

   Guest VLAN auth-period     : 150 s

   Critical VLAN              : Not configured

   Critical voice VLAN        : Disabled

   Host mode                  : Multiple VLAN

   Offline detection          : Enabled

   Max online users           : 256

   Authentication attempts    : successful 2, failed 3

   Current online users       : 1

          MAC address       Auth state

          0001-0000-0000    Authenticated

          0001-0000-0001    Unauthenticated

Table 1 Command output

Field	Description
MAC authentication	Whether MAC authentication is enabled globally.
Username format	User account type: MAC-based or shared. ·         If MAC-based accounts are used, this field displays the format settings for the username. For example, MAC address in lowercase(xxxxxxxxxxxx) indicates that the MAC address is in hexadecimal notation without hyphens, and letters are in lower case. ·         If a shared account is used, this field displays Fixed account.
Username	Username for MAC authentication. ·         If MAC-based accounts are used, this field displays mac. The device uses the MAC address of each user as the username and password for MAC authentication. ·         If a shared account is used, this field displays the username of the shared account for MAC authentication users. By default, the username is mac.
Password	Password for MAC authentication. ·         If MAC-based accounts are used or if a shared account is used but no password is configured, this field displays Not configured. ·         If a shared account is used and a password is configured, this field displays a string of asterisks (******).
Offline detect period	Offline detect timer.
Quiet period	Quiet timer.
Server timeout	Server timeout timer.
Authentication domain	MAC authentication domain specified in system view. If no authentication domain is specified in system view, this field displays Not configured, use default domain.
Online MAC-auth wired users	Number of wired online MAC authentication users, including users that have passed MAC authentication and users that are performing MAC authentication.
Silent MAC users	Information about silent MAC addresses.
MAC address	Silent MAC address.
VLAN ID	ID of the VLAN to which the silent MAC address belongs.
From port	Name of the port that marks the MAC address as a silent MAC address.
Port index	Index of the port that marks the MAC address as a silent MAC address.
GigabitEthernet3/1/1 is link-up	Status of the link on GigabitEthernet 3/1/1. In this example, the link is up.
MAC authentication	Whether MAC authentication is enabled on the port.
Authentication domain	MAC authentication domain specified for the port.
Re-auth server-unreachable	Action taken when no server is reachable for MAC reauthentication: ·         Logoff—Logs off online MAC authentication users. ·         Online—Keeps MAC authenticated users online.
Guest VLAN	This field is not supported in the current software version. MAC authentication guest VLAN configured on the port. If no MAC authentication guest VLAN is configured, this field displays Not configured.
Guest VLAN auth-period	This field is not supported in the current software version. Authentication interval for users in the MAC authentication guest VLAN on the port.
Critical VLAN	This field is not supported in the current software version. MAC authentication critical VLAN configured on the port. If no MAC authentication critical VLAN is configured, this field displays Not configured.
Critical voice VLAN	This field is not supported in the current software version. Whether the MAC authentication critical voice VLAN feature is enabled on the port.
Host mode	·         If multi-VLAN mode is disabled, this field displays Single VLAN. ·         If multi-VLAN mode is enabled, this field displays Multiple VLAN.
Offline detection	Status of MAC authentication offline detection: ·         Enabled. ·         Disabled.
Max online users	Maximum number of concurrent online users allowed on the port.
Authentication attempts: successful 1, failed 0	MAC authentication statistics, including the number of successful and unsuccessful authentication attempts.
MAC address	MAC address of the online user.
Auth state	User status: ·         Authenticated—The user has passed MAC authentication. ·         Unauthenticated—The user failed MAC authentication.

 

display mac-authentication connection

Use display mac-authentication connection to display information about online MAC authentication users.

Syntax

In standalone mode:

display mac-authentication connection [ interface interface-type interface-number | slot slot-number | user-mac mac-address | user-name user-name ]

In IRF mode:

display mac-authentication connection [ chassis chassis-number slot slot-number | interface interface-type interface-number | user-mac mac-address | user-name user-name ]

Views

Any view

Predefined user roles

network-admin

network-operator

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify a port, this command displays information about online MAC authentication users for all ports.

slot slot-number: Specifies a card by its slot number. If you do not specify a card, this command displays information about online MAC authentication users for all cards. (In standalone mode.)

chassis chassis-number slot slot-number: Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. The slot-number argument represents the slot number of the card. If you do not specify a card, this command displays information about online MAC authentication users for all cards. (In IRF mode.)

user-mac mac-address: Specifies an online MAC authentication user by its MAC address. The mac-address argument represents the MAC address of the user, in the form of H-H-H. If you do not specify an online MAC authentication user, this command displays all online MAC authentication user information.

user-name user-name: Specifies an online MAC authentication user by its username. The user name is a case-sensitive string of 1 to 253 characters, and it can include the domain name. If you do not specify an online MAC authentication user, this command displays all online MAC authentication user information.

Examples

# (In standalone mode.) Display information about all online MAC authentication users.

<Sysname> display mac-authentication connection

Slot ID: 0

User MAC address: 0015-e9a6-7cfe

Access interface: GigabitEthernet3/1/1

Username: ias

Authentication domain: h3c

Initial VLAN: 1

Authorization untagged VLAN: 100

Authorization tagged VLAN: N/A

Authorization ACL ID: 3001

Authorization user profile: N/A

Termination action: Radius-request

Session timeout period: 2 s

Online from: 2013/03/02  13:14:15

Online duration: 0h 2m 15s

 

Total 1 connections matched.

Table 2 Command output

Field	Description
User MAC address	MAC address of the user.
Access interface	Interface through which the user accesses the device.
Authentication domain	MAC authentication domain to which the user belongs.
Initial VLAN	VLAN that holds the user before MAC authentication.
Authorization untagged VLAN	Untagged VLAN authorized to the user.
Authorization tagged VLAN	Tagged VLAN authorized to the user.
Authorization ACL ID	ACL authorized to the user.
Authorization user profile	This field is not supported in the current software version. User profile authorized to the user.
Termination action	Action attribute assigned by the server to terminate the user session: ·         Default—Logs off the online authenticated user when the session timeout timer expires. ·         Radius-request—Reauthenticates the online user when the session timeout timer expires. If the device performs local authentication, this field displays N/A.
Session timeout period	Session timeout timer assigned by the server. If the device performs local authentication, this field displays N/A.
Online from	Time from which the MAC authentication user came online.
Online duration	Online duration of the MAC authentication user.
Total xx connections matched	Total number of online MAC authentication users.

 

mac-authentication

Use mac-authentication to enable MAC authentication globally or on a port.

Use undo mac-authentication to disable MAC authentication globally or on a port.

Syntax

mac-authentication

undo mac-authentication

Default

MAC authentication is disabled globally or on any port.

Views

System view

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

To use MAC authentication on a port, you must enable the feature both globally and on the port.

Examples

# Enable MAC authentication globally.

<Sysname> system-view

[Sysname] mac-authentication

# Enable MAC authentication on GigabitEthernet 3/1/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mac-authentication

Related commands

display mac-authentication

mac-authentication domain

Use mac-authentication domain to specify a global or port-specific authentication domain.

Use undo mac-authentication domain to restore the default.

Syntax

mac-authentication domain domain-name

undo mac-authentication domain

Default

The system default authentication domain is used. For more information about the default authentication domain, see the domain default enable command in BRAS Services Command Reference.

Views

System view

Ethernet interface view

Predefined user roles

network-admin

Parameters

domain-name: Specifies the name of an ISP domain, a case-insensitive string of 1 to 255 characters.

Usage guidelines

The global authentication domain applies to all MAC authentication-enabled ports. A port-specific authentication domain applies only to the port. You can specify different authentication domains on different ports.

A port chooses an authentication domain for MAC authentication users in the following order:

1.        Authentication domain specified on the port.

2.        Global authentication domain specified in system view.

3.        Default authentication domain.

Examples

# Specify ISP domain domain1 as the global MAC authentication domain.

<Sysname> system-view

[Sysname] mac-authentication domain domain1

# Specify ISP domain aabbcc as the MAC authentication domain on GigabitEthernet 3/1/1.

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mac-authentication domain aabbcc

Related commands

display mac-authentication

domain default enable (BRAS Services Command Reference)

mac-authentication host-mode

Use mac-authentication host-mode multi-vlan to enable MAC authentication multi-VLAN mode on a port.

Use undo mac-authentication host-mode to restore the default.

Syntax

mac-authentication host-mode multi-vlan

undo mac-authentication host-mode

Default

MAC authentication multi-VLAN mode is disabled on a port. When the port receives a packet sourced from an authenticated MAC address in a VLAN not matching the existing MAC-VLAN mapping, the device logs off and reauthenticates the user.

Views

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The MAC authentication multi-VLAN mode prevents an authenticated online user from service interruption caused by VLAN changes on a port. When the port receives a packet sourced from the user in a VLAN not matching the existing MAC-VLAN mapping, the device neither logs off the user nor reauthenticates the user. The device creates a new MAC-VLAN mapping for the user, and traffic transmission is not interrupted. The original MAC-VLAN mapping for the user remains on the device until it dynamically ages out. As a best practice, configure this feature on hybrid or trunk ports.

This feature improves transmission of data that is vulnerable to delay and interference. It is typically applicable to IP phone users.

Examples

# Enable MAC authentication multi-VLAN mode on GigabitEthernet 3/1/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mac-authentication host-mode multi-vlan

Related commands

display mac-authentication

mac-authentication max-user

Use mac-authentication max-user to set the maximum number of concurrent MAC authentication users on a port.

Use undo mac-authentication max-user to restore the default.

Syntax

mac-authentication max-user max-number

undo mac-authentication max-user

Default

The maximum number of concurrent MAC authentication users on a port is 4294967295.

Views

Ethernet interface view

Predefined user roles

network-admin

Parameters

max-number: Specifies the maximum number of concurrent MAC authentication users on the port. The value range for this argument is 1 to 4294967295.

Usage guidelines

Set the maximum number of concurrent MAC authentication users on a port to prevent the system resources from being overused. When the maximum number is reached, the port denies subsequent MAC authentication users.

Examples

# Configure GigabitEthernet 3/1/1 to support a maximum of 32 concurrent MAC authentication users.

<Sysname> system-view

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mac-authentication max-user 32

Related commands

display mac-authentication

mac-authentication offline-detect enable

Use mac-authentication offline-detect enable to enable MAC authentication offline detection on a port.

Use undo mac-authentication offline-detect enable to disable MAC authentication offline detection.

Syntax

mac-authentication offline-detect enable

undo mac-authentication offline-detect enable

Default

MAC authentication offline detection is enabled on a port.

Views

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

This command allows the device to log off a user if the device does not receive any packets from that user within an offline detect interval. In addition, the device requests the accounting server to stop accounting for that user. To set the offline detect timer, use the mac-authentication timer command.

The undo mac-authentication offline-detect enable command disables the device from inspecting the online user status.

Examples

# Disable MAC authentication offline detection on GigabitEthernet 3/1/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] undo mac-authentication offline-detect enable

Related commands

mac-authentication timer

mac-authentication re-authenticate server-unreachable keep-online

Use mac-authentication re-authenticate server-unreachable keep-online to enable the keep-online feature on a port.

Use undo mac-authentication re-authenticate server-unreachable to restore the default.

Syntax

mac-authentication re-authenticate server-unreachable keep-online

undo mac-authentication re-authenticate server-unreachable

Default

The keep-online feature is disabled on a port. The device logs off online MAC authentication users if no server is reachable for MAC reauthentication.

Views

Ethernet interface view

Predefined user roles

network-admin

Usage guidelines

The keep-online feature keeps authenticated MAC authentication users online when no server is reachable for MAC reauthentication.

This command takes effect only after the server assigns the Radius-request action attribute to the authenticated MAC authentication user (see "display mac-authentication connection"). The access device will reauthenticate the user when the session timeout timer expires.

Examples

# Enable the keep-online feature for authenticated MAC authentication users on GigabitEthernet 3/1/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 3/1/1

[Sysname-GigabitEthernet3/1/1] mac-authentication re-authenticate server-unreachable keep-online

Related commands

display mac-authentication

mac-authentication timer

Use mac-authentication timer to configure a MAC authentication timer.

Use undo mac-authentication timer to restore the default of a MAC authentication timer.

Syntax

mac-authentication timer { offline-detect offline-detect-value | quiet quiet-value | server-timeout server-timeout-value }

undo mac-authentication timer { offline-detect | quiet | server-timeout }

Default

The offline detect timer is 300 seconds, the quiet timer is 60 seconds, and the server timeout timer is 100 seconds.

Views

System view

Predefined user roles

network-admin

Parameters

offline-detect offline-detect-value: Sets the offline detect timer in the range of 60 to 2147483647, in seconds.

quiet quiet-value: Sets the quiet timer in the range of 1 to 3600, in seconds.

server-timeout server-timeout-value: Sets the server timeout timer in the range of 100 to 300, in seconds.

Usage guidelines

MAC authentication uses the following timers:

·          Offline detect timer—Sets the interval that the device must wait for traffic from a user before the device determines that the user is idle. If the device has not received traffic from a user before the timer expires, the device logs off that user and requests the accounting server to stop accounting for the user. This timer takes effect only when the MAC authentication offline detection feature is enabled.

·          Quiet timer—Sets the interval that the device must wait before the device can perform MAC authentication for a user that has failed MAC authentication. All packets from the MAC address are dropped during the quiet time. This quiet mechanism prevents repeated authentication from affecting system performance.

·          Server timeout timer—Sets the interval that the device waits for a response from a RADIUS server before the device determines that the RADIUS server is unavailable. If the timer expires during MAC authentication, the user cannot access the network.

Examples

# Set the server timeout timer to 150 seconds.

<Sysname> system-view

[Sysname] mac-authentication timer server-timeout 150

Related commands

display mac-authentication

mac-authentication user-name-format

Use mac-authentication user-name-format to configure the type of user accounts for MAC authentication users.

Use undo mac-authentication user-name-format to restore the default.

Syntax

mac-authentication user-name-format { fixed [ account name ] [ password { cipher | simple } string ] | mac-address [ { with-hyphen | without-hyphen } [ lowercase | uppercase ] ] }

undo mac-authentication user-name-format

Default

Each user's MAC address is used as the username and password for MAC authentication. The MAC addresses are in hexadecimal notation without hyphens, and letters are in lower case.

Views

System view

Predefined user roles

network-admin

Parameters

fixed: Uses a shared account for all MAC authentication users.

account name: Specifies the username for the shared account. The name is a case-sensitive string of 1 to 55 characters, excluding the at sign (@). If you do not specify a username, the default name mac applies.

password: Specifies the password for the shared user account.

cipher: Specifies a password in encrypted form.

simple: Specifies a password in plaintext form. For security purposes, the password specified in plaintext form will be stored in encrypted form.

string: Specifies the password. Its plaintext form is a case-sensitive string of 1 to 63 characters. Its encrypted form is a case-sensitive string of 1 to 117 characters.

mac-address: Uses MAC-based user accounts for MAC authentication users. You can also specify the format of username and password by using the following keywords:

·          with-hyphen: Includes hyphens in the MAC address, for example xx-xx-xx-xx-xx-xx.

·          without-hyphen: Excludes hyphens from the MAC address, for example, xxxxxxxxxxxx.

·          lowercase: Specifies letters in lower case.

·          uppercase: Specifies letters in upper case.

Usage guidelines

If you specify the MAC-based user account, the device uses the MAC address of a user as the username and password for MAC authentication of the user. This user account type ensures high authentication security. However, you must create on the authentication server a user account for each user, using the MAC address of the user as both the username and password.

If you specify a shared user account, the device uses the specified username and password for MAC authentication of all users. Because all MAC authentication users use a single account for authentication, you only need to create one account on the authentication server. This user account type is suitable for trusted networks.

Examples

# Configure a shared account for MAC authentication users, and set the username to abc and password to plaintext string of xyz.

<Sysname> system-view

[Sysname] mac-authentication user-name-format fixed account abc password simple xyz

# Use MAC-based user accounts for MAC authentication users. The MAC addresses are in hexadecimal notation with hyphens, and letters are in upper case.

<Sysname> system-view

[Sysname] mac-authentication user-name-format mac-address with-hyphen uppercase

Related commands

display mac-authentication

reset mac-authentication statistics

Use reset mac-authentication statistics to clear MAC authentication statistics.

Syntax

reset mac-authentication statistics [ interface interface-type interface-number ]

Views

User view

Predefined user roles

network-admin

Parameters

interface interface-type interface-number: Specifies a port by its type and number. If you do not specify a port, this command clears both global and port-specific MAC authentication statistics.

Examples

# Clear MAC authentication statistics on GigabitEthernet 3/1/1.

<Sysname> reset mac-authentication statistics interface gigabitethernet 3/1/1

Related commands

display mac-authentication