Quidway S3000 Series User manual

Operation Manual - Security
Quidway S3000 Series Ethernet Switches Table of Contents
i
Table of Contents
Chapter 1 802.1x Configuration...................................................................................................1-1
1.1 802.1x Overview................................................................................................................1-1
1.1.1 802.1x Standard Overview......................................................................................1-1
1.1.2 802.1x System Architecture....................................................................................1-1
1.1.3 802.1x Authentication Process................................................................................1-2
1.1.4 Implement 802.1x on Ethernet Switch ....................................................................1-3
1.2 Configure 802.1x................................................................................................................1-3
1.2.1 Enable/Disable 802.1x ............................................................................................1-4
1.2.2 Set the Port Access Control Mode..........................................................................1-4
1.2.3 Set Port Access Control Method.............................................................................1-5
1.2.4 Check the Users that Log on the Switch via Proxy.................................................1-5
1.2.5 Set Supplicant Number on a Port............................................................................1-6
1.2.6 Set to Enable DHCP to Launch Authentication.......................................................1-6
1.2.7 Configure Authentication Method for 802.1x User..................................................1-7
1.2.8 Set the Maximum times of authentication request message retransmission..........1-7
1.2.9 Set the handshake period of 802.1x .......................................................................1-8
1.2.10 Configure Timers...................................................................................................1-8
1.2.11 Enable/Disable quiet-period Timer........................................................................1-9
1.3 Display and Debug 802.1x.................................................................................................1-9
1.4 802.1x Configuration Example.........................................................................................1-10
Chapter 2 AAA and RADIUS Protocol Configuration ................................................................2-1
2.1 AAA and RADIUS Protocol Overview................................................................................ 2-1
2.1.1 AAA Overview.........................................................................................................2-1
2.1.2 RADIUS Protocol Overview ....................................................................................2-1
2.1.3 Implement AAA/RADIUS on Ethernet Switch.........................................................2-2
2.2 Configure AAA...................................................................................................................2-3
2.2.1 Create/Delete ISP Domain......................................................................................2-3
2.2.2 Configure Relevant Attributes of ISP Domain.........................................................2-4
2.2.3 Create a Local User ................................................................................................ 2-5
2.2.4 Set Attributes of Local User ....................................................................................2-5
2.2.5 Disconnect a User by Force....................................................................................2-6
2.3 Configure RADIUS Protocol ..............................................................................................2-7
2.3.1 Create/Delete a RADIUS server Group..................................................................2-8
2.3.2 Set IP Address and Port Number of RADIUS Server .............................................2-8
2.3.3 Set RADIUS Packet Encryption Key.......................................................................2-9
2.3.4 Set Response Timeout Timer of RADIUS Server.................................................2-10
2.3.5 Set Retransmission Times of RADIUS Request Packet.......................................2-10

Operation Manual - Security
Quidway S3000 Series Ethernet Switches Table of Contents
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2.3.6 Set a Real-time Accounting Interval......................................................................2-11
2.3.7 Set Maximum Times of Real-time Accounting Request Failing to be Responded2-12
2.3.8 Enable/Disable Stopping Accounting Request Buffer...........................................2-12
2.3.9 Set the Maximum Retransmitting Times of Stopping Accounting Request ..........2-13
2.3.10 Set the Supported Type of RADIUS Server........................................................2-14
2.3.11 Set RADIUS Server State ...................................................................................2-14
2.3.12 Set Username Format Transmitted to RADIUS Server ...................................... 2-15
2.3.13 Set the Unit of Data Flow that Transmitted to RADIUS Server...........................2-15
2.3.14 Configure Local RADIUS Server Group.............................................................. 2-16
2.4 Display and Debug AAA and RADIUS Protocol..............................................................2-16
2.5 AAA and RADIUS Protocol Configuration Examples ......................................................2-17
2.5.1 Configuring FTP/Telnet User Authentication at Remote RADIUS Server ............2-17
2.5.2 Configuring FTP/Telnet User Authentication at Local RADIUS Server ................ 2-19
2.6 AAA and RADIUS Protocol Fault Diagnosis and Troubleshooting.................................. 2-19
Chapter 3 HABP Configuration....................................................................................................3-1
3.1 HABP Overview.................................................................................................................3-1
3.2 HABP configuration ...........................................................................................................3-1
3.2.1 Configuring HABP Server .......................................................................................3-1
3.2.2 Configuring HABP Client.........................................................................................3-2
3.3 Displaying and Debugging HABP Attribute .......................................................................3-2

Operation Manual - Security
Quidway S3000 Series Ethernet Switches Chapter 1 802.1x Configuration
1-1
Chapter 1 802.1x Configuration
1.1 802.1x Overview
1.1.1 802.1x Standard Overview
IEEE 802.1x (hereinafter simplified as 802.1x) is a Port Based Network Access Control
protocol. IEEE issued it in 2001 and suggested the related manufacturers should use
the protocol as the standard protocol for LAN user access authentication. The 802.1x
originated from the IEEE 802.11 standard, which is the standard for wireless LAN user
access. The initial purpose of 802.1x was to implement the wireless LAN user access
authentication. Since its principle is commonly applicable to all the LANs complying
with the IEEE 802 standards, the protocol finds wide application in wired LANs.
In the LANs complying with the IEEE 802 standards, the user can access the devices
and share the resources in the LAN through connecting the LAN access control device
like the LAN Switch. However, in telecom access, commercial LAN (a typical example
is the LAN in the office building) and mobile office etc., the LAN providers generally
hope to control the user’s access. In these cases, the requirement on the
above-mentioned “Port Based NetworkAccess Control” originates.
As the name implies, “Port Based NetworkAccess Control” means to authenticate and
control all the accessed devices on the port of LAN access control device. If the user’s
device connected to the port can pass the authentication, the user can access the
resources in the LAN. Otherwise, the user cannot access the resources in the LAN. It
equals that the user is physically disconnected.
802.1x defines port based network access control protocol and only defines the
point-to-point connection between the access device and the access port. The port can
be either physical or logical. The typical application environment is as follows: Each
physical port of the LAN Switch only connects to one user workstation (based on the
physical port) and the wireless LAN access environment defined by the IEEE 802.11
standard (based on the logical port), etc.
1.1.2 802.1x System Architecture
The system using the 802.1x is the typical C/S (Client/Server) system architecture. It
contains three entities, which are illustrated in the following figure: Supplicant System,
Authenticator System and Authentication Sever System.

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Quidway S3000 Series Ethernet Switches Chapter 1 802.1x Configuration
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The LAN access control device needs to provide the Authenticator System of 802.1x.
The devices at the user side such as the computersneed to be installed with the 802.1x
client Supplicant software, for example, the 802.1x client provided by Huawei
Technologies Co., Ltd. (or by Microsoft Windows XP). The 802.1xAuthentication Sever
system normally stays in the carrier’sAAA center.
Authenticator and Authentication Severexchange information through EAP (Extensible
Authentication Protocol) frames. The Supplicant and the Authenticator exchange
information through the EAPoL (Extensible Authentication Protocol over LANs) frame
defined by IEEE 802.1x. Authentication data are encapsulated in the EAP frame, which
is to be encapsulated in the packets of other AAAupper layer protocols (e.g. RADIUS)
so as to go through the complicated network to reach the Authentication Server. Such
procedure is called EAP Relay.
There are two types of ports for the Authenticator. One is the Uncontrolled Port, and the
other is the Controlled Port. The Uncontrolled Port is always in bi-directional connection
state. The user can access and share the network resources any time through the ports.
The Controlled Port will be in connecting state only after the user passes the
authentication. Then the user is allowed to access the network resources.
Supplicant Authenticator
PAE
Authenticator
Server
Supplicant
System
Authenticator System Authenticator
Server
System
EAP protocol
exchanges
carried in
higher layer
protocol
EAPoL
Controlled
Port
Port
unauthorized
LAN
Uncontrolled
Port
Services
offered
by
Authenticators
System
Figure 1-1 802.1x system architecture
1.1.3 802.1x Authentication Process
802.1x configures EAP frame to carry the authentication information. The Standard
defines the following types of EAP frames:
zEAP-Packet: Authentication information frame, used to carry the authentication
information.

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Quidway S3000 Series Ethernet Switches Chapter 1 802.1x Configuration
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zEAPoL-Start: Authentication originating frame, actively originated by the
Supplicant.
zEAPoL-Logoff: Logoff request frame, actively terminating the authenticated state.
zEAPoL-Key: Key information frame, supporting to encrypt the EAP packets.
zEAPoL-Encapsulated-ASF-Alert: Supports the Alerting message of Alert Standard
Forum (ASF).
The EAPoL-Start, EAPoL-Logoff and EAPoL-Key only exist between the Supplicant
and the Authenticator. The EAP-Packet information is re-encapsulated by the
Authenticator System and then transmitted to the Authentication Server System. The
EAPoL-Encapsulated-ASF-Alert is related to the network management information and
terminated by the Authenticator.
From the above fundamentals we can see that 802.1x provides an implementation
solution of user ID authentication. However, 802.1x itself is not enough to implement
the scheme. The administrator of the access device should configure the AAA scheme
by selecting RADIUS or local authentication so as to assist 802.1x to implement the
user ID authentication. For detailed description ofAAA, refer to the corresponding AAA
configuration.
1.1.4 Implement 802.1x on Ethernet Switch
Quidway Series Ethernet Switches not only support the port access authentication
method regulated by 802.1x, but also extend and optimize it in the following way:
zSupport to connect several End Stations in the downstream via a physical port.
zThe access control (or the user authentication method) can be based on port or
MAC address.
In this way, the system becomes much securer and easier to manage.
1.2 Configure 802.1x
The configuration tasks of 802.1x itself can be fulfilled in system view of the Ethernet
switch. When the global 802.1x is not enabled, the user can configure the 802.1x state
of the port. The configured items will take effect after the global 802.1x is enabled.
Note:
1) Do not enable 802.1x and RSTP( or MSTP) simultaneously, otherwise switch may not work normally.
2) When 802.1x is enabled on a port, the max number of MAC address learning which is configured by the
command mac-address max-mac-count cannot be configured on the port, and vice versa.

Operation Manual - Security
Quidway S3000 Series Ethernet Switches Chapter 1 802.1x Configuration
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The Main 802.1x configuration includes:
zEnable/Disable 802.1x
zSet the port access control mode
zSet port access control method
zCheck the users that log on the switch via proxy
zSet maximum number of users via each port
zSet to enable DHCP to launch authentication
zconfigure authentication method for 802.1x user
zSet the Maximum times of authentication request message retransmission
zSet the handshake period of 802.1x
zConfigure timers
zEnable/Disable quiet-period Timer
Among the above tasks, the first one is compulsory, otherwise 802.1x will not take any
effect. The other tasks are optional. You can perform the configurations at
requirements.
1.2.1 Enable/Disable 802.1x
The following commands can be used to enable/disable the 802.1x on the specified
port. When no port is specified in system view, the 802.1x is enabled/disabled globally.
Perform the following configurations in system view or Ethernet port view.
Table 1-1 Enable/Disable 802.1x
Operation Command
Enable the 802.1x dot1x [ interface interface-list ]
Disable the 802.1x undo dot1x [ interface interface-list ]
User can configure 802.1x on individual port, but it is not enabled yet. The configuration
will take effect right after 802.1x is enabled globally.
By default, 802.1x authentication has not been enabled globally and on any port.
1.2.2 Set the Port Access Control Mode.
The following commands can be used for setting 802.1x access control mode on the
specified port. When no port is specified, the access control mode of all ports is
configured.
Perform the following configurations in system view or Ethernet port view.

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Quidway S3000 Series Ethernet Switches Chapter 1 802.1x Configuration
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Table 1-2 Set the port access control mode.
Operation Command
Set the port access control mode. dot1x port-control { authorized- force |
unauthorized-force | auto } [ interface interface-list ]
Restore the default access control mode
of the port. undo dot1x port-control [ interface interface-list ]
By default, the mode of 802.1x performing access control on the port is auto (automatic
identification mode, which is also called protocol control mode). That is, the initial state
of the port is unauthorized. It only permits EAPoL packets receiving/transmitting and
does not permit the user to access the network resources. If the authentication flow is
passed, the port will be switched to the authorized state and permit the user to access
the network resources. This is the most common case.
1.2.3 Set Port Access Control Method
The following commands are used for setting 802.1x access control method on the
specified port. When no port is specified in system view, the access control method of
port is configured globally.
Perform the following configurations in system view or Ethernet port view.
Table 1-3 Set port access control method
Operation Command
Set port access control method dot1x port-method { macbased | portbased }
[ interface interface-list ]
Restore the default port access control
method undo dot1x port-method [ interface interface-list ]
By default, 802.1x authentication method on the port is macbased. That is,
authentication is performed based on MAC addresses.
1.2.4 Check the Users that Log on the Switch via Proxy
The following commands are used for checking the users that log on the switch via
proxy.
Perform the following configurations in system view or Ethernet port view.

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Table 1-4 Check the users that log on the switch via proxy
Operation Command
Enable the check for access users via
proxy
dot1x supp-proxy-check { logoff | trap } [ interface
interface-list ]
Cancel the check for access users via
proxy
undo dot1x supp-proxy-check { logoff | trap }
[ interface interface-list ]
By default, cancel the control method set for access 802.1x users via proxy.
1.2.5 Set Supplicant Number on a Port
The following commands are used for setting number of users allowed by 802.1x on
specified port. When no port is specified, all the ports accept the same number of
supplicants.
Perform the following configurations in system view or Ethernet port view.
Table 1-5 Set maximum number of users via specified port
Operation Command
Set maximum number of users via
specified port dot1x max-user user-number [ interface interface-list ]
Restore the maximum number of
users on the port to the default value undo dot1x max-user [ interface interface-list ]
By default, 802.1x allows up to 256 supplicants on each port for S3000 Series Ethernet
switches (except 64 for S3026).
1.2.6 Set to Enable DHCP to Launch Authentication
The following commands are used for setting whether 802.1x enables the Ethernet
switch to launch the user ID authentication when the user runs DHCP and applies for
dynamic IP addresses.
Perform the following configurations in system view.
Table 1-6 Set to enable DHCP to launch authentication
Operation Command
Enable DHCP to launch authentication dot1x dhcp-launch
Disable DHCP to launch authentication undo dot1x dhcp-launch

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By default, authentication will not be launched when the user runs DHCP and applies
for dynamic IP addresses.
1.2.7 Configure Authentication Method for 802.1x User
The following commands can be used to configure the authentication method for
802.1x user. Three kinds of methods are available: PAP authentication (RADIUS server
must support PAP authentication), CHAP authentication (RADIUS server must support
CHAP authentication), EAP relay authentication (switch send authentication
information to RADIUS server in the form of EAP packets directly and RADIUS server
must support EAP authentication).
Perform the following configurations in system view.
Table 1-7 Configure authentication method for 802.1x user
Operation Command
Configure authentication method for
802.1x user
dot1x authentication-method {chap |pap |eap
md5-challenge}
Restore the default authentication
method for 802.1x user undo dot1x authentication-method
By default, CHAP authentication is used for 802.1x user authentication.
1.2.8 Set the Maximum times of authentication request message
retransmission
The following commands are used for setting the maximum retransmission times of the
authentication request message that the switch sends to the supplicant.
Perform the following configurations in system view.
Table 1-8 Set the maximum times of the authentication request message retransmission
Operation Command
Set the maximum times of the authentication request
message retransmission dot1x retry max-retry-value
Restore the default maximum retransmission times undo dot1x retry
By default, the max-retry-value is 3. That is, the switch can retransmit the
authentication request message to a supplicant for 3 times at most.

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1.2.9 Set the handshake period of 802.1x
The following commands are used to set the handshake period of 802.1x. After setting
handshake-period, system will send the handshake packet by the period. Suppose the
dot1x retry time is configured as N, the system will consider the user having logged off
and set the user as logoff state if system doesn’t receive the response of user for
consecutive N times.
Perform the following configurations in system view.
Table 1-9 Set the handshake period of 802.1x
Operation Command
Set the handshake period of 802.1x dot1x timer handshake-period interval
Restore the handshake period to default value undo dot1x timer handshake-period
By default, handshake period is 15s.
1.2.10 Configure Timers
The following commands are used for configuring the 802.1x timers.
Perform the following configurations in system view.
Table 1-10 Configure timers
Operation Command
Configure timers
dot1x timer { quiet-period quiet-period-value | tx-period
tx-period-value | supp-timeout supp-timeout-value |
server-timeout server-timeout-value }
Restore default settings of the
timers
undo dot1x timer { quiet-period | tx-period | supp-timeout |
server-timeout }
quiet-period: Specify the quiet timer. If an 802.1x user has not passed the
authentication, the Authenticator will keep quiet for a while (which is specified by
quiet-period timer) before launching the authentication again. During the quiet period,
the Authenticator does not do anything related to 802.1x authentication.
quiet-period-value: Specify how long the quiet period is. The value ranges from 10 to
120 in units of second.
server-timeout: Specify the timeout timer of an Authentication Server. If an
Authentication Server has not responded before the specified period expires, the
Authenticator will resend the authentication request.