| CPC H04L 61/4511 (2022.05) [H04L 61/5007 (2022.05)] | 23 Claims |

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1. A communication device comprising:
a memory; and
a controller configured to:
receive a first IP address of a first external device as an input by a user;
store the first IP address received as a first setting in the memory;
receive first name information including a first name of the first external device as an input by the user;
store the first name information received as a second setting different from the first setting in the memory;
after the first IP address has been stored as the first setting in the memory and the first name information has been stored as the second setting in the memory, obtain a second IP address of the first external device by performing a name resolution with the first name included in the first name information;
determine whether the second IP address matches with the first IP address included in the first setting in the memory; and
in a case where the controller determines that the second IP address does not match with the first IP address included in the first setting in the memory, perform a specific process that is relevant to storing the second IP address in the memory as the first setting.
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