DHCP on an AR

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DHCP dynamically configures and uniformly manages network parameters of hosts on a TCP/IP network. DHCP provides the following functions:
- Dynamic allocation: DHCP allocates an IP address with a limited validity period (called lease) to a client.
This mechanism applies to hosts that temporarily connect to a network with fewer IP addresses than the total number of hosts and hosts do not need to permanently connect to the network. For example, this mechanism can be used to allocate IP addresses to laptops used by employees on business trips or mobile terminals in cafes.
- Static allocation: Fixed IP addresses are assigned to specified hosts.
This mechanism applies to hosts with special IP address requirements. For example, the file server of an enterprise needs to use a fixed IP address to provide services for extranet users.
Compared with manual IP address configuration, DHCP static allocation prevents manual configuration errors and helps network administrators perform unified maintenance and management.
DHCP can allocate other network parameters except for the IP address to hosts, including the DNS server address, routing information, and gateway address.

Other related questions:
DHCP on an AR
DHCP dynamically configures and uniformly manages network parameters of hosts on a TCP/IP network. DHCP provides the following functions: - Dynamic allocation: DHCP allocates an IP address with a limited validity period (called lease) to a client. This mechanism applies to hosts that temporarily connect to a network with fewer IP addresses than the total number of hosts and hosts do not need to permanently connect to the network. For example, this mechanism can be used to allocate IP addresses to laptops used by employees on business trips or mobile terminals in cafes. - Static allocation: Fixed IP addresses are assigned to specified hosts. This mechanism applies to hosts with special IP address requirements. For example, the file server of an enterprise needs to use a fixed IP address to provide services for extranet users. Compared with manual IP address configuration, DHCP static allocation prevents manual configuration errors and helps network administrators perform unified maintenance and management. DHCP can allocate other network parameters except for the IP address to hosts, including the DNS server address, routing information, and gateway address.

Method used to configure NAT and DHCP on the AR
Huawei AR series routers support DHCP and NAT so that users can dynamically obtain IP addresses and access the Internet. This function applies to all versions and models of the AR.

DHCP configuration is ineffective on an AR
The possible causes for ineffective DHCP configuration as follows: 1. DHCP is not enabled on the AR. 2. The address pool is configured incorrectly.3. The IP network segment are not specified on the interface of the DHCP server connected to the client, or the specified IP network segment and address pool are different. 4. If ACL resources are used up, the DHCP command that is run globally or on an interface does not take effect.

DHCP performance supported by the AR
Hi, I cannot answer this question. For details about product specifications, dial 4008229999 to ask for artificial service and consulting.

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