Can an AR allocate existing static addresses to other terminals

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If an IP address including the static address on the same network segment exists, the AR does not send the IP address to another terminal. Before assigning an IP address to a client, the DHCP server must ping the IP address to prevent address conflicts.
After the dhcp server ping command is executed, the DHCP server can prevent repetitive IP address allocation. The DHCP server pings an IP address to be allocated. If there is no response to the ping packet within a certain period, the DHCP server continues to send ping packets to this IP address until the number of ping packets reaches the maximum value. If there is still no response, this IP address is not in use, and the DHCP server allocates the IP address to a client.

Other related questions:
Can S series switches assign the existing static addresses to other terminals
For S series switches excluding the S1700, when there are IP addresses (including static IP addresses) located on the same network segment, the switch will not assign the IP address to other terminals. Before assigning an IP address to a client, the DHCP server must ping the IP address to check whether this IP address is in use. This prevents address conflicts. Address detection refers to the maximum number of ping packets that a DHCP server sends and the maximum timeout interval of each ping reply are set using the dhcp server ping { packet number | timeout milliseconds } * command in the system view. If there is no response to the ping packet within a specified period, the DHCP server continues to send ping packets to this IP address until the number of ping packets reaches the maximum value. If there is still no response, the DHCP server detects that the IP address has not been used by any device on the network segment. This ensures that there is only IP address allocated to the DHCP client.

Can a static IP address be allocated to different clients
S series switches except S1700 switches do not assign IP addresses in use to clients. Before assigning an IP address to a client, a switch functioning as the DHCP server sends ping packets to the IP address to prevent IP address conflicts. You can run the dhcp server ping { packet number | timeout milliseconds } command in the system view to specify the maximum number of ping packets to be sent by a DHCP server and the maximum response time of a ping packet. If there is no response to the ping packet within the maximum response time, the DHCP server continues to send ping packets to this IP address until the number of ping packets reaches the maximum value. If there is still no response, this IP address is not in use and the DHCP server assigns the IP address to a client. This ensures that the IP address assigned to the client is unique.

Can a static IP address be allocated to a 3G Cellular interface
In general, the IP address of a 3G Cellular interface is dynamically allocated by the network device. Allocating a static IP address to a 3G Cellular interface may result in dial-up failures.

Static DHCP binding on S series switch
In static DHCP binding mode, fixed IP addresses can be assigned to DHCP clients. Versions and models of S series switches except S1700 switches that support this function are as follows: - All switch models in V200R005 and later versions, except the S2720 in V200R006C10 - All switch models except the S5700LI, S5700S-LI, and S2750 in versions earlier than V200R005

Whether IP addresses to be added can overlap with existing IP addresses of other regions
They can overlap with each other. If an IP address to be added overlaps with an IP address of another user-defined or predefined region, the adding operation succeeds, and the overlapping IP address is automatically removed from this another predefined or user-defined region.

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