Communication apparatus capable of preventing data erroneous transmission, control method therefor, and storage medium storing control program therefor

A communication apparatus that provides an access point and allocates one IP address, from among one or more IP addresses that are candidates of allocation, to an external terminal configured to access the access point in order to communicate with the external terminal in a first communication mode, the communication apparatus comprising:

• a display which displays information;
• a network interface to which a first IP address used for connecting to a specific network is allocated in order for the communication apparatus to communicate in a second communication mode different from the first communication mode, the first IP address having a network part and a host part;
• and
• at least one controller configured to function as:
• a reception unit configured to receive an input of setting information used in a communication via the access point per the first communication mode, the input setting information including the one or more IP addresses that are candidates of allocation for allocation to the external terminal configured to access the access point provided by the communication apparatus;
• and
• a control unit configured to:
• obtain the first IP address used for connecting to the specific network per the second communication mode;
• determine whether the communication apparatus is connected to at least one external terminal via the access point per the first communication mode;
• determine, in a case where it is determined that the communication apparatus is connected to the at least one external terminal via the access point per the first communication mode, whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches a network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point per the first communication mode, and control the display to display the information so that an operation to perform a communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time, is not allowed, in a case where it is determined that the network part of the first IP address used for connecting to the specific network matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point;
• and
• set, in a case where it is determined that the communication apparatus is not connected to the at least one external terminal via the access point per the first communication mode, the first IP address used for connecting to the specific network to be used in the communication via the specific network per the second communication mode without determining whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode,
• wherein in a case where it is determined the network part of the first IP address used for connecting to the specific network per the second communication mode does not match the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode, the operation to perform the communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time, is allowed.

A control method for a communication apparatus that provides an access point and allocates one IP address, from among one or more IP addresses that are candidates of allocation, to an external terminal configured to access the access point in order to communicate with the external terminal in a first communication mode, the method comprising:

• allocating a first IP address, used for connecting to a specific network in order for the communication apparatus to communicate in a second communication mode different from the first communication mode, to a network interface, the first IP address having a network part and a host part;
• receiving an input of setting information used in communication via the access point per the first communication mode, the input setting information including the one or more IP addresses that are candidates of allocation for allocation to the external terminal configured to access the access point provided by the communication apparatus;
• obtaining the first IP address used for connecting to the specific network per the second communication mode;
• determining whether the communication apparatus is connected to at least one external terminal via the access point per the first communication mode;
• determining, in a case where it is determined that the communication apparatus is connected to the at least one external terminal via the access point per the first communication mode, whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches a network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point per the first communication mode, and displaying on a display information so that an operation to perform a communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time, is not allowed, in a case where it is determined that the network part of the first IP address used for connecting to the specific network matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point;
• setting, in a case where it is determined that the communication apparatus is not connected to the at least one external terminal via the access point per the first communication mode, the first IP address used for connecting to the specific network to be used in the communication via the specific network per the second communication mode without determining whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode;
• and
• allowing, in a case where it is determined the network part of the first IP address used for connecting to the specific network per the second communication mode does not match the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode, the operation to perform the communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time.

A non-transitory computer-readable storage medium storing computer executable instructions that cause a computer to execute a control method for a communication apparatus that provides an access point and allocates one IP address, from among one or more IP addresses that are candidates of allocation, to an external terminal configured to access the access point in order to communicate with the external terminal in a first communication mode, the method comprising:

• allocating a first IP address, used for connecting to a specific network in order for the communication apparatus to communicate in a second communication mode different from the first communication mode, to a network interface, the first IP address having a network part and a host part;
• receiving an input of setting information used in communication via the access point per the first communication mode, the input setting information including the one or more IP addresses that are candidates of allocation for allocation to the external terminal configured to access the access point provided by the communication apparatus;
• obtaining the first IP address used for connecting to the specific network per the second communication mode;
• determining whether the communication apparatus is connected to at least one external terminal via the access point per the first communication mode;
• determining, in a case where it is determined that the communication apparatus is connected to the at least one external terminal via the access point per the first communication mode, whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches a network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point per the first communication mode, and displaying on a display information so that an operation to perform a communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time, is not allowed, in a case where it is determined that the network part of the first IP address used for connecting to the specific network matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal based on the input setting information used in the communication via the access point;
• setting, in a case where it is determined that the communication apparatus is not connected to the at least one external terminal via the access point per the first communication mode, the first IP address used for connecting to the specific network to be used in the communication via the specific network per the second communication mode without determining whether the network part of the first IP address used for connecting to the specific network per the second communication mode matches the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode;
• and
• allowing, in a case where it is determined the network part of the first IP address used for connecting to the specific network per the second communication mode does not match the network part of the one or more IP addresses that are candidates of allocation for allocation to the external terminal per the first communication mode, the operation to perform the communication via the specific network per the second communication mode and the communication via the access point per the first communication mode at the same time.