Which service in MikroTik helps manage local IP addresses in a network?

The service in MikroTik that helps manage local IP addresses in a network is DHCP (Dynamic Host Configuration Protocol). DHCP automates the process of assigning IP addresses to devices on a local network, ensuring that each device can obtain a unique IP address without manual configuration. This is particularly useful in larger networks where managing IP addresses manually would be time-consuming and prone to errors.

When a device connects to the network, it sends a request to the DHCP server, which responds with an available IP address from a specified pool. This not only streamlines the process of IP address assignment but also ensures that IP address conflicts are minimized, as the server keeps track of which addresses are in use.

In contrast, the other services listed fulfill different roles within a network. NAT (Network Address Translation) is used for translating private IP addresses to a public IP address for internet access, ARP (Address Resolution Protocol) resolves IP addresses to MAC addresses within a local network, and bandwidth control focuses on managing network bandwidth allocation rather than IP address management. Thus, DHCP is the correct answer for managing local IP addresses effectively.