Can an interface range be mapped on the AR router


The AR router cannot map an interface range.

Other related questions:
What is the operating temperature range of AR routers

The operating temperature range of the AR120&AR150&AR160&AR200&AR1200&AR2200&AR3200&AR3600 series routers is 0°C to 45°C.

The display temperature all command displays the highest temperature in an AR router but not the actual ambient temperature.

If no alarm is generated, the router is working normally and the temperature is within the allowed range.


You can use the display temperature all command to check the temperature alarm thresholds and current temperature of all boards on a router.

Can the AR router implement one-to-one mapping between multiple port numbers
The AR router can be configured with static NAT or the NAT server to implement one-to-one mapping, for example, nat server protocol tcp global 21 inside 21.

Can load balancing be implemented when multiple interfaces of the AR router are mapped to internal servers
When multiple interfaces of the AR router map to internal servers, load balancing can be implemented. You can run the load-balance { dst-ip | dst-mac | src-ip | src-mac | src-dst-ip | src-dst-mac } command.

How to implement port mapping on an AR router
Run the port-mapping command on an AR router to configure port mapping based on basic ACLs (number 2000 to 2999). Port mapping is implemented after packets match an ACL rule. To filter packets based on the ACLs, port mapping tries to match the destination IP addresses in the packets with the IP addresses defined in the basic ACL rules.
# Set the mapping port of the HTTP service to 10. If packets comply with the rules defined in the ACL 2000, the mapping relationship takes effect.
[Huawei] acl 2000
[Huawei-acl-basic-2000] rule permit
[Huawei-acl-basic-2000] quit
[Huawei] port-mapping http port 10 acl 2000

Configure port mapping on an AR router
Configure port mapping on an AR router. Port mapping is implemented based on ACLs. The application layer protocols that port mapping supports include FTP, DNS, HTTP, SIP, PPTP, and RTSP. Generally, the application layer protocols use well-known ports for communication. Port mapping allows users to define a group of new port numbers for different application layer protocols, reducing the risk of malicious attacks on a service. Port mapping makes senses only when it is used in conjunction with service-sensitive features such as ASPF and NAT. 1. Run the port-mapping { dns | ftp | http | sip | rtsp | pptp } port port-number acl acl-number command in the system view to configure port mapping globally. A protocol can be configured with multiple mapped ports, and a port can be mapped to multiple protocols. The ports must be distinguished based on ACLs. Different mapping relationships are applied to packets matching different ACLs. Actually, port mapping identifies protocols used by packets destined for a specific IP address (for example, WWW server). When trying to match the packets with basic ACL rules, port mapping matches the destination IP addresses in the packets with the source IP addresses defined in the ACL rules. 2. Run the display port-mapping [ dns | ftp | http | rtsp | sip | port port-number | pptp ] command to check the information about port mapping. An example of configuring port mapping is as follows: [Huawei] port-mapping ftp port 2121 acl 2102 //Configure port mapping on a router. [Huawei] display port-mapping ftp //Check the configuration result. For details about configuration of port mapping on AR routers, see the URL: AR router configuration port-mapping .

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