How do I configure a 4G interface on an AR

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The procedure for configuring an LTE interface is as follows:
[Huawei] apn profile lteprofile //Create an APN profile.
[Huawei-apn-profile-lteprofile] apn 3GNET
[Huawei-apn-profile-lteprofile] user name lteuser password cipher Password@123 authentication-mode auto
[Huawei-apn-profile-lteprofile] quit
[Huawei] dialer-rule //Configure a dialer ACL.
[Huawei-dialer-rule] dialer-rule 1 ip permit
[Huawei-dialer-rule] quit
[Huawei] interface cellular 0/0/0
[Huawei-Cellular0/0/0] link-protocol ppp
[Huawei-Cellular0/0/0] ip address negotiate //Configure an LTE cellular interface to dynamically obtain an IP address.
[Huawei-Cellular0/0/0] ppp ipcp dns request //Configure a DNS server address through PPP negotiation.
[Huawei-Cellular0/0/0] dialer enable-circular //Enable C-DCC.
[Huawei-Cellular0/0/0] dialer-group 1 //Associate Cellular0/0/0 with the dialer ACL.
[Huawei-Cellular0/0/0] dialer number *99# //Configure a dialer number for calling the remote end.
[Huawei-Cellular0/0/0] mode lte auto //Configure a network connection mode.
[Huawei-Cellular0/0/0] apn-profile lteprofile //Bind the APN profile to the LTE cellular interface.
[Huawei-Cellular0/0/0] shutdown
[Huawei-Cellular0/0/0] undo shutdown
[Huawei-Cellular0/0/0] quit

Other related questions:
How do I configure a 3G interface on an AR router
When WCDMA is used, the procedure for configuring a 3G interface is as follows: [Huawei] apn profile 3gprofile //Create an APN profile. [Huawei-apn-profile-3gprofile] apn 3GNET [Huawei-apn-profile-3gprofile] user name 3guser password cipher Password@123 authentication-mode auto [Huawei-apn-profile-3gprofile] quit [Huawei] dialer-rule //Configure a dialer ACL. [Huawei-dialer-rule] dialer-rule 1 ip permit [Huawei-dialer-rule] quit [Huawei] interface cellular 0/0/0 [Huawei-Cellular0/0/0] link-protocol ppp [Huawei-Cellular0/0/0] ip address ppp-negotiate //Configure an IP address through PPP negotiation. [Huawei-Cellular0/0/0] ppp ipcp dns request //Configure a DNS server address through PPP negotiation. [Huawei-Cellular0/0/0] dialer enable-circular //Enable C-DCC. [Huawei-Cellular0/0/0] dialer-group 1 //Associate Cellular0/0/0 to the dialer access group. [Huawei-Cellular0/0/0] dialer number *99# //Configure a dialer number for calling the remote end. [Huawei-Cellular0/0/0] mode wcdma wcdma-precedence //Configure a network connection mode. [Huawei-Cellular0/0/0] apn-profile 3gprofile //Bind the APN profile to the 3G cellular interface. [Huawei-Cellular0/0/0] shutdown [Huawei-Cellular0/0/0] undo shutdown [Huawei-Cellular0/0/0] quit When CDMA2000 is used, the procedure for configuring a 3G interface is as follows: [Huawei] dialer-rule //Configure a dialer ACL. [Huawei-dialer-rule] dialer-rule 1 ip permit [Huawei-dialer-rule] quit [Huawei] interface cellular 0/0/0 [Huawei-Cellular0/0/0] link-protocol ppp [Huawei-Cellular0/0/0] ip address ppp-negotiate //Configure an IP address through PPP negotiation. [Huawei-Cellular0/0/0] ppp ipcp dns request //Configure a DNS server address through PPP negotiation. [Huawei-Cellular0/0/0] dialer enable-circular //Enable C-DCC. [Huawei-Cellular0/0/0] dialer-group 1 //Associate Cellular0/0/0 to the dialer access group. [Huawei-Cellular0/0/0] dialer number #777 //Configure a dialer number for calling the remote end. [Huawei-Cellular0/0/0] mode cdma hybrid //Configure a network reconnection mode. [Huawei-Cellular0/0/0] quit

How is the APN configured on the AR
An access point name (APN) identifies an external PDN network (for example, the Internet or IMS network) that users want to access. [Huawei] apn profile 3gprofile //Create an APN profile named 3gprofile and enter the APN profile view. [Huawei-apn-profile-3gprofile] apn 3gnet //Configure an APN. Obtain the APN from the local carrier.

Whether the AR router supports 3G and 4G do double outlet
Some low-end models are not supported, there are two USB interface or a USB with a SIM slot device on the panel support 3G and 4G dual uplink; In addition to the equipment type with a HSPA+7 or C models with built-in 3G support.

How do I configure IPSG on an AR
IP source guard (IPSG) checks received IP packets against a binding table as a defense measure against source IP address spoofing attacks. Before configuring IPSG, complete the following task: - Configure IP addresses for interfaces to ensure that the link status is Up. - Configure DHCP snooping if IP addreses are dynamically allocated. - Manually configure a static binding table if IP addresses are statically configured. Dynamic binding: system-view //Enter the system view. [Huawei] dhcp enable //Enable DHCP globally. [Huawei] dhcp snooping enable //Enable DHCP snooping globally. [Huawei] vlan 10 //Eneter the view of VLAN 10. [Huawei -vlan10] dhcp snooping enable //Enable DHCP snooping in the VLAN. [Huawei -vlan10] ip source check user-bind enable //Enable IP packet check in VLAN 10. [Huawei vlan10] quit //Exit from the view of VLAN 10. [Huawei] display ip source check user-bind vlan 10 //Check the configuration of IP packet check. Static binding: system-view //Enter the system view. [Huawei]user-bind static ip-address 1.1.1.2 mac-address 5489-98A1-38D9 interface ethernet 0/0/2 vlan 10 //Configure a static binding entry in which the IP adress, MAC address, and VLAN ID are bound. (In practice, bind one of them. If all of them are bound, users can access a network only when the binding entry is matched.) [huawei]interface ethernet 0/0/2 [huawei-Ethernet0/0/2]ip source check user-bind enable //Enable IPSG on the interface.

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