Procedure

1. Click Configuration on the toolbar to access the Configuration page. In the navigation tree on the left, click WAN Configuration to access the WAN Configuration page.

   The page only displays WAN interfaces.

2. Set Interface and Connection mode, as shown in Table 1-16.
   Table 1-16  Access mode parameter description

   Parameter	Description
   Interface	Interface used by a router to connect to the Internet.
   Connection mode	Internet access mode of a router. Broadband dialup Fixed address Dynamic address 3G/4G(LTE)

   • PPPoE dial-up

     1. Set Connection mode to Broadband dialup, as shown in Figure 1-43.
        Figure 1-43  WAN configuration for PPPoE dial-up
        
        
     2. Table 1-17 describes PPPoE dial-up parameters.
        Table 1-17  PPPoE dial-up parameter description

        Parameter	Description
        Status	PPPoE dial-up will be initiated only when the connection is enabled.
        User name	User name for PPPoE dial-up.
        Password	Password for PPPoE dial-up.
        MTU(Byte)	MTU of an interface. If the MTU size is smaller than packet size, packets will be fragmented and discarded by QoS queues. If the MTU is too large, packets are transmitted slowly or even lost. The default value of MTU is 1500.
        TCP-MSS(Byte)	MSS of TCP packets on an interface. The MSS refers to the maximum length of a TCP packet segment sent from the remote end to the local end. During TCP connection negotiation, devices at both ends record the MSS of each other. When sending TCP packets, the devices limit the size of TCP packets within the MSS. The recommended value of TCP-MSS is 1200.
        Enable NAT	NAT must be enabled when a PC on the private network of a LAN connects to the Internet. By default, NAT is disabled.
        Load Balancing	Two load balancing modes are supported: UCMP: Unequal Cost Multiple Path ECMP: Equal Cost Multiple Path NOTE: This parameter is supported in V200R010C10 and later versions.
        Interface bandwidth(Kbps)	When the load balancing mode is UCMP, the interface bandwidth needs to be configured. NOTE: This parameter is supported in V200R010C10 and later versions.
        Load Balancing Algorithm	Three load balancing Algorithms are supported: Source IP: Indicates that the load balancing is based on the source IP address. Destination IP: Indicates that the load balancing is based on the destination IP address. Source IP and Destination IP: Indicates that the load balancing is based on the source IP address and destination IP address. NOTE: This parameter is supported in V200R010C10 and later versions.

     3. Click Apply to complete interface configuration.

   • Fixed IP address

     1. Set Connection mode to Fixed address, as shown in Figure 1-44.
        Figure 1-44  WAN configuration for fixed IP addresses
        
        
     2. Table 1-18 describes fixed IP address parameters.
        Table 1-18  Fixed IP address parameter description

        Parameter	Description
        IP address	IP address of an interface. The interface IP address cannot conflict with the IP addresses of other interfaces on the device or other devices in the network.
        Subnet mask	Subnet mask of an interface.
        Gateway	Default gateway address of an interface. The default gateway address must be in the same network segment as the interface IP address.
        Primary DNS server	Primary DNS server address assigned to a device. NOTE: In V200R010C00, this parameter is mandatory.
        Secondary DNS server	Secondary DNS server address assigned to a device.
        MTU(Byte)	MTU of an interface. If the MTU size is smaller than packet size, packets will be fragmented and discarded by QoS queues. If the MTU is too large, packets are transmitted slowly or even lost. The default value of MTU is 1500.
        TCP-MSS(Byte)	MSS of TCP packets on an interface. The MSS refers to the maximum length of a TCP packet segment sent from the remote end to the local end. During TCP connection negotiation, devices at both ends record the MSS of each other. When sending TCP packets, the devices limit the size of TCP packets within the MSS. The recommended value of TCP-MSS is 1200.
        Enable NAT	NAT must be enabled when a PC on the private network of a LAN connects to the Internet. By default, NAT is disabled.
        Load Balancing	Two load balancing modes are supported: UCMP: Unequal Cost Multiple Path ECMP: Equal Cost Multiple Path NOTE: This parameter is supported in V200R010C10 and later versions.
        Load Balancing Algorithm	Three load balancing Algorithms are supported: Source IP: Indicates that the load balancing is based on the source IP address. Destination IP: Indicates that the load balancing is based on the destination IP address. Source IP and Destination IP: Indicates that the load balancing is based on the source IP address and destination IP address. NOTE: This parameter is supported in V200R010C10 and later versions.

     3. Click Apply to complete interface configuration.

   • Dynamic address allocation

     1. Set Connection mode to Dynamic address, as shown in Figure 1-45.
        Figure 1-45  WAN configuration for dynamic address allocation
        
        
     2. Table 1-19 describes dynamic address allocation parameters.
        Table 1-19  Dynamic address allocation parameter description

        Parameter	Description
        MTU(Byte)	MTU of an interface. If the MTU size is smaller than packet size, packets will be fragmented and discarded by QoS queues. If the MTU is too large, packets are transmitted slowly or even lost. The default value of MTU is 1500.
        TCP-MSS(Byte)	MSS of TCP packets on an interface. The MSS refers to the maximum length of a TCP packet segment sent from the remote end to the local end. During TCP connection negotiation, devices at both ends record the MSS of each other. When sending TCP packets, the devices limit the size of TCP packets within the MSS. The recommended value of TCP-MSS is 1200.
        Enable NAT	NAT must be enabled when a PC on the private network of a LAN connects to the Internet. By default, NAT is disabled.
        Load Balancing	Two load balancing modes are supported: UCMP: Unequal Cost Multiple Path ECMP: Equal Cost Multiple Path NOTE: This parameter is supported in V200R010C10 and later versions.
        Load Balancing Algorithm	Three load balancing Algorithms are supported: Source IP: Indicates that the load balancing is based on the source IP address. Destination IP: Indicates that the load balancing is based on the destination IP address. Source IP and Destination IP: Indicates that the load balancing is based on the source IP address and destination IP address. NOTE: This parameter is supported in V200R010C10 and later versions.

     3. Click Apply to complete interface configuration.

   • 3G/4G (LTE)

     1. Set Interface to Cellular0/0/0 and set Connection mode to 3G/4G(LTE), as shown in Figure 1-46.
        Figure 1-46  WAN configuration for 3G/4G(LTE)
        
        
     2. Table 1-20 describes 3G/4G(LTE) parameters.
        Table 1-20  3G/4G(LTE) parameter description

        Parameter	Description
        One-click Diagnose	One-click Diagnose will be initiated only when the connection mode is 3G/4G(LTE). NOTE: This parameter is supported in V200R010C10 and later versions.
        Status	3G/LTE dial-up will be initiated only when the connection is enabled.
        User name	User name for accessing an external PDN network, which is provided by the carrier.
        Password	User password for accessing an external PDN network, which is provided by the carrier.
        APN	APN for the router. NOTE: APNs are provided by the carrier.
        Dialer number	Configure a dialer number for calling the remote end. NOTE: This parameter is supported in V200R010C10 and later versions.
        MTU(Byte)	MTU of an interface. If the MTU size is smaller than packet size, packets will be fragmented and discarded by QoS queues. If the MTU is too large, packets are transmitted slowly or even lost. The default value of MTU is 1500.
        TCP-MSS(Byte)	MSS of TCP packets on an interface. The MSS refers to the maximum length of a TCP packet segment sent from the remote end to the local end. During TCP connection negotiation, devices at both ends record the MSS of each other. When sending TCP packets, the devices limit the size of TCP packets within the MSS. The recommended value of TCP-MSS is 1200.
        Enable NAT	NAT must be enabled when a PC on the private network of a LAN connects to the Internet. By default, NAT is disabled.
        Load Balancing	Two load balancing modes are supported: UCMP: Unequal Cost Multiple Path ECMP: Equal Cost Multiple Path NOTE: This parameter is supported in V200R010C10 and later versions.
        Load Balancing Algorithm	Three load balancing Algorithms are supported: Source IP: Indicates that the load balancing is based on the source IP address. Destination IP: Indicates that the load balancing is based on the destination IP address. Source IP and Destination IP: Indicates that the load balancing is based on the source IP address and destination IP address. NOTE: This parameter is supported in V200R010C10 and later versions.

     3. Click Apply to complete interface configuration.

3. (Optional) Change the working mode of interfaces or view information about interfaces in the Ethernet interface list. Click Configuration in the function area to access the Configuration page, and click WAN Configuration in the navigation tree to access the WAN Configuration page.

   V200R010C10 and later versions support this function.

   • Change the working mode of interfaces in the Ethernet interface list.

     1. Choose Configuration > WAN Configuration to access the WAN Configuration page.
     2. On the WAN Configuration page, view the Ethernet Interface List area. Click Refresh to view the Ethernet interface list on the device.
     3. In the Ethernet interface list, click Convert for the interface whose working mode needs to be changed. On the page similar to Figure 1-47 that is displayed, click OK and clear the interface configuration as prompted to change the working mode of the interface.
        Figure 1-47  Prompt information
        
        

   • View information about interfaces in the Ethernet interface list.

     1. Choose Configuration > WAN Configuration to access the WAN Configuration page.
     2. In the Ethernet Interface List area, select a search condition from the drop-down list box, such as Interface Name, Interface Description, Physical Status, Protocol Status, Connection Mode and IP Address/Mask, enter the corresponding information in the text box on the right, and click . The queried information will be displayed in the Ethernet Interface List area.