Example for Configuring 802.1x Authentication to Control Users' Internal Access

CloudEngine 12800 and 12800E V200R005C10 Configuration Guide - Security

This document describes the configurations of Security, including AAA, 802.1x Authentication, ACL, TCAM ACL Customization, local attack defense, Microsegmentation, MFF, attack defense, traffic suppression and storm control, ARP security, Port security, MACsec, DHCP snooping, IPSG, URPF, SSL, Keychain and FIPS.

About This Document
AAA Configuration
- Overview of AAA
- Understanding AAA
- Application Scenarios for AAA
- Licensing Requirements and Limitations for AAA
- Summary of AAA Configuration Tasks
- Configuring Local Authentication and Authorization
- Configuring RADIUS AAA
- Configuring HWTACACS AAA
- Clearing AAA Statistics
- Configuration Examples for AAA
  - Example for Configuring RADIUS Authentication and Accounting
  - Example for Configuring HWTACACS Authentication, Accounting, and Authorization
- Troubleshooting AAA
  - An AAA Local User Cannot Be Created Due to Incorrect Password Setting
802.1x Authentication Configuration
- Understanding 802.1x Authentication
- Application Scenarios for 802.1x Authentication
- Licensing Requirements and Limitations for 802.1x Authentication
- Default Settings for 802.1x Authentication
- Configuring 802.1x Authentication
- Maintaining 802.1x Authentication
  - Clearing Statistics on 802.1x Authentication Packets
  - Forcing Users Offline
- Configuration Examples for 802.1x Authentication
  - Example for Configuring 802.1x Authentication to Control Users' Internal Access
ACL Configuration
- Overview of ACLs
- Understanding ACLs
- Application Scenarios for ACLs
- Licensing Requirements and Limitations for ACLs
- Default Settings for ACLs
- Configuring a Basic ACL
- Configuring an Advanced ACL
- Configuring a Layer 2 ACL
- Configuring a User-defined ACL
- Configuring an ARP-based ACL
- Configuring a Basic ACL6
- Configuring an Advanced ACL6
- Maintaining an ACL
  - Clearing ACL Statistics
  - Checking ACL Resource Usages
- Configuration Examples for ACLs
- ACL FAQ
  - Which Packets Cannot Be Filtered by the ACL Used by a Traffic Policy?
TCAM ACL Customization Configuration
- Overview of TCAM ACL Customization
- Licensing Requirements and Limitations for TCAM ACL Customization
- Configuring TCAM ACL Customization
  - Enabling TCAM ACL Customization
  - Configuring the TCAM ACL Customization Function for Services
- Displaying Information about a TCAM ACL Customization Profile or Preset Profile
- Configuration Examples for TCAM ACL Customization
  - Example for Configuring TCAM ACL Customization
Microsegmentation Configuration
- Overview of Microsegmentation
- Understanding Microsegmentation
- Application Scenarios for Microsegmentation
- Licensing Requirements and Limitations for Microsegmentation
- Configuring Microsegmentation
- Maintaining Microsegmentation
  - Checking Microsegmentation Statistics
  - Clearing Microsegmentation Statistics
- Configuration Examples for Microsegmentation
  - Example for Configuring IP Address-based Microsegmentation
Local Attack Defense Configuration
- Overview of Local Attack Defense
- Licensing Requirements and Limitations for Local Attack Defense
- Default Settings for Local Attack Defense
- Configuring CPU Attack Defense
- Configuring Attack Source Tracing
- Maintaining Local Attack Defense
- Configuration Examples for Local Attack Defense
  - Example for Configuring Local Attack Defense
- Troubleshooting Local Attack Defense
MFF Configuration
- Overview of MFF
- Understanding MFF
- Application Scenarios for MFF
- Licensing Requirements and Limitations for MFF
- Configuring MFF
- Configuration Examples for MFF
  - Example for Configuring MFF to Implement Layer 2 Isolation and Layer 3 Connection
- Troubleshooting MFF
  - Users Fail to Access the Internet After MFF Is Configured
Attack Defense Configuration
- Overview of Attack Defense
- Understanding Attack Defense
- Application Scenarios for Attack Defense
- Licensing Requirements and Limitations for Attack Defense
- Default Settings for Attack Defense
- Configuring Defense Against Malformed Packet Attacks
- Configuring Defense Against Packet Fragment Attacks
- Configuring Defense Against Flood Attacks
- Clearing Attack Defense Statistics
- Configuration Examples for Attack Defense
  - Example for Configuring Attack Defense
Traffic Suppression and Storm Control Configuration
- Overview of Traffic Suppression and Storm Control
- Understanding Traffic Suppression and Storm Control
  - Traffic Suppression
  - Storm Control
- Application Scenarios for Traffic Suppression and Storm Control
  - Traffic Suppression
  - Storm Control
- Licensing Requirements and Limitations for Traffic Suppression and Storm Control
- Default Settings for Traffic Suppression and Storm Control
- Configuring Traffic Suppression
- Configuring Storm Control
- Configuration Examples for Traffic Suppression and Storm Control
  - Example for Configuring Traffic Suppression
  - Example for Configuring Storm Control
ARP Security Configuration
- Overview of ARP Security
- Understanding ARP Security
- Application Scenarios for ARP Security
  - Defense Against ARP Flood Attacks
  - Defense Against ARP Spoofing Attacks
- Licensing Requirements and Limitations for ARP Security
- Default Settings for ARP Security
- Configuring Defense Against ARP Flood Attacks
- Configuring Defense Against ARP Spoofing Attacks
- Maintaining ARP Security
- Configuration Examples for ARP Security
  - Example for Configuring ARP Security Functions
  - Example for Configuring Defense Against ARP MITM Attacks
Port Security Configuration
- Overview of Port Security
- Understanding Port Security
- Application Scenarios for Port Security
- Licensing Requirements and Limitations for Port Security
- Default Settings for Port Security
- Configuring Port Security
- Configuration Examples for Port Security
  - Example for Configuring Port Security
MACsec Configuration
- Overview of MACsec
- Understanding MACsec
- Application Scenarios for MACsec
- Default Configuration
- Licensing Requirements and Limitations for MACsec
- Configuring MACsec
- Maintaining MACsec
  - Displaying MACsec Statistics
  - Clearing MACsec Statistics
- Configuration Examples for MACsec
  - Example for Configuring Point-to-Point MACsec
DHCP Snooping Configuration
- Overview of DHCP Snooping
- Understanding DHCP Snooping
  - DHCP Snooping Fundamentals
  - Option 82 Supported by DHCP Snooping
- Application Scenarios for DHCP Snooping
- Licensing Requirements and Limitations for DHCP Snooping
- Default Settings for DHCP Snooping
- Configuring Basic Functions of DHCP Snooping
- Configuring DHCP Snooping Attack Defense
- Inserting the Option 82 Field in a DHCP Message
- Maintaining DHCP Snooping
- Configuration Examples for DHCP Snooping
  - Example for Configuring DHCP Snooping Attack Defense
- Troubleshooting DHCP Snooping
  - DHCP Clients Cannot Go Online Due to DHCP Snooping
IPSG Configuration
- Overview of IPSG
- Licensing Requirements and Limitations for IPSG
- Default Settings for IPSG
- Configuring IPSG
- Maintaining IPSG
  - Checking Statistics on Discarded IP Packets
  - Clearing Statistics on Discarded IP Packets
- Configuration Examples for IPSG
  - Example for Configuring IPSG to Check Interface + IP + MAC Binding Entries
URPF Configuration
- Overview of URPF
- Understanding URPF
- Application Scenarios for URPF
- Licensing Requirements and Limitations for URPF
- Default Settings for URPF
- Configuring URPF
- Configuration Examples for URPF
  - Example for Configuring URPF (CE12800)
  - Example for Configuring URPF (CE12800E)
SSL Configuration
- Overview of SSL
- Understanding SSL
- Application Scenarios for SSL
  - Application of SSL in Information Center
- Licensing Requirements and Limitations for SSL
- Configuring SSL
  - Configuring an SSL Policy
  - Applying an SSL Policy
- Configuration Examples for SSL
  - Example for Outputting SSL-Encrypted Logs to a Log Host
Keychain Configuration
- Overview of Keychains
- Understanding Keychains
- Application Scenarios for Keychains
- Licensing Requirements and Limitations for Keychain
- Configuring a Keychain
- Configuration Examples for Keychains
  - Example for Applying the Keychain to RIP
  - Example for Applying the Keychain to BGP
FIPS Configuration
- Overview of FIPS
- Configuring the FIPS Mode
Separating the Management Port from the Service Plane
Checking Security Risks
Setting the System Master Key

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Example for Configuring 802.1x Authentication to Control Users' Internal Access

Networking Requirements

As shown in Figure 2-5, the terminals in an office are connected to the company's internal network through the Switch. Unauthorized access to the internal network can damage the company's service system and cause leakage of key information. Therefore, the administrator requires that the Switch should control the users' network access rights to ensure internal network security.

Figure 2-5 Configuring 802.1x authentication to control Users' Internal Access

Configuration Roadmap

The configuration roadmap is as follows:

Create and configure a RADIUS server group, an AAA scheme, and an authentication domain. Bind the RADIUS server group and AAA scheme to the authentication domain so that the Switch can authenticate access users through the RADIUS server.
Enable 802.1x authentication to control network access rights of the employees in the office.

In this example, a LAN switch exists between the Switch and users. To ensure that users can pass 802.1x authentication, you must configure the LAN switch to transparently transmit EAP packets.
This example only provides the configurations on the Switch. The configurations on the LAN switch and RADIUS server are not provided here.

Procedure

Create VLANs and configure interfaces to allow packets of the VLANs to pass to ensure data transmission.
# Create VLAN 10 and VLAN 20.
```
<HUAWEI> system-view
[~HUAWEI] sysname Switch
[*HUAWEI] commit
[~Switch] vlan batch 10 20
```
# Configure the interface 10GE1/0/1 connecting the Switch to users as an access interface and add the interface to VLAN 10.
```
[*Switch] interface 10ge 1/0/1
[*Switch-10GE1/0/1] port link-type access
[*Switch-10GE1/0/1] port default vlan 10 
[*Switch-10GE1/0/1] quit
```
Configure the interface type and VLANs based on the site requirements. In this example, users are added to VLAN 10.

# On the Switch, configure the interface 10GE1/0/2 connected to the RADIUS server as an access interface and add the interface to VLAN 20.
```
[*Switch] interface 10ge 1/0/2
[*Switch-10GE1/0/2] port link-type access
[*Switch-10GE1/0/2] port default vlan 20
[*Switch-10GE1/0/2] quit
[*Switch] commit
```

Create and configure a RADIUS server group, an AAA authentication scheme, and an authentication domain.

# Create and configure a RADIUS server group rd1.

[~Switch] radius enable
[*Switch] radius server group rd1
[*Switch-radius-rd1] radius server authentication 192.168.2.30 1812
[*Switch-radius-rd1] radius server shared-key-cipher device@123
[*Switch-radius-rd1] quit

Ensure that the shared key in the RADIUS server group is the same as that configured on the RADIUS server.

# Create an AAA authentication scheme abc and configure the authentication mode to RADIUS.

[*Switch] aaa
[*Switch-aaa] authentication-scheme abc
[*Switch-aaa-authen-abc] authentication-mode radius
[*Switch-aaa-authen-abc] quit

# Create an authentication domain isp1, and bind the AAA scheme abc and RADIUS server group rd1 to the domain isp1.

[*Switch-aaa] domain isp1
[*Switch-aaa-domain-isp1] authentication-scheme abc
[*Switch-aaa-domain-isp1] radius server group rd1
[*Switch-aaa-domain-isp1] quit
[*Switch-aaa] quit
[*Switch] commit

Configure 802.1x authentication.
# Enable 802.1x authentication globally and on the interface 10GE1/0/1.
```
[~Switch] dot1x enable
[*Switch] dot1x enable interface 10ge 1/0/1
```
# Configure an 802.1x authentication domain so that all users are authenticated in this domain.
```
[*Switch] domain isp1
[*Switch] commit
```
Verify the configuration.
1. Run the display dot1x command to check the 802.1x authentication configuration. The command output (10GE1/0/1 802.1x: Enabled) shows that 802.1x authentication has been enabled on the interface 10GE1/0/1.
2. A user starts the 802.1x client on a terminal, and enters the user name and password for authentication.
3. If the user name and password are correct, an authentication success message is displayed on the client page. The user then can access the network.
4. After the user goes online, you can run the display dot1x sessions command on the device to check the online 802.1x user information.

Configuration Files

# Configuration file of the Switch

#   
sysname Switch  
#                                                                               
vlan batch 10 20
#                                                                               
dot1x enable                                                                    
domain isp1   
#                                                                               
radius enable 
#                                                                               
radius server group rd1                                                         
 radius server shared-key-cipher %^%#w$Kk$.2,EF:O(u%(HzjXPW\L6'1"`SwCQJ<M|vA:%^%#               
 radius server authentication 192.168.2.30 1812  
#                                                                               
aaa                                                                             
 #                                                                              
 authentication-scheme abc                                                      
  authentication-mode radius                                                    
 #                                                                              
 domain isp1                                                                    
  authentication-scheme abc                                                     
  radius server group rd1  
#                                                                               
interface 10GE1/0/1                                                             
 port default vlan 10                                                           
 dot1x enable                                                                   
#                                                                               
interface 10GE1/0/2                                                             
 port default vlan 20                                                           
#                                                                               
return

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Updated: 2021-09-17

Document ID: EDOC1100075347

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