Communication apparatus and communication system

A first communication apparatus, comprising:

• a communication control section configured to:
• transmit, based on connection of the first communication apparatus to an external network, a management frame to a specific apparatus, wherein
• the management frame includes a parameter indicating a connection capacity of the first communication apparatus, the connection capacity of the first communication apparatus indicates a first number of communication apparatuses to which the first communication apparatus can grant connection to the external network,
• a wireless LAN includes a plurality of communication apparatuses,
• the plurality of communication apparatuses includes the first communication apparatus, and
• each of the plurality of communication apparatuses functions as a gateway;
• determine a second number of communication apparatuses to which the first communication apparatus has granted connection to the external network is less than the first number of communication apparatuses;
• and
• grant connection of the specific apparatus to the external network based on the determination that the second number of communication apparatuses is less than the first number of communication apparatuses;
• wherein the communication control section is further configured to control transmission power for radio waves within a range in which communication with the specific apparatus is enabled;
• and
• wherein the specific apparatus includes a control apparatus responsible for a function for access control in the wireless LAN.