Which is the correct RouterOS CLI command to enable a DHCP client on an interface named wan1?

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Multiple Choice

Which is the correct RouterOS CLI command to enable a DHCP client on an interface named wan1?

Explanation:
In RouterOS, an interface gets its IP configuration by creating a DHCP client instance tied to that interface. The add command does exactly that: it creates a new DHCP client and attaches it to the specified interface, so the interface will request an IP address from a DHCP server on the network. That’s why the command to enable DHCP on wan1 is to add a DHCP client with interface=wan1. Choosing wan2 would attach the DHCP client to the wrong interface, so it wouldn’t enable DHCP on wan1. Including address=dhcp isn’t a valid parameter for configuring a DHCP client in this context—the client automatically uses DHCP to obtain an address. Using set would only modify an existing DHCP client; if none exists yet, you’d need to add one.

In RouterOS, an interface gets its IP configuration by creating a DHCP client instance tied to that interface. The add command does exactly that: it creates a new DHCP client and attaches it to the specified interface, so the interface will request an IP address from a DHCP server on the network. That’s why the command to enable DHCP on wan1 is to add a DHCP client with interface=wan1.

Choosing wan2 would attach the DHCP client to the wrong interface, so it wouldn’t enable DHCP on wan1. Including address=dhcp isn’t a valid parameter for configuring a DHCP client in this context—the client automatically uses DHCP to obtain an address. Using set would only modify an existing DHCP client; if none exists yet, you’d need to add one.

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