According to Endian EULA articles:
1.10 "Users": Shall mean all users in the computer network which is protected and/or managed through the Endian Product, including without limitation workstations, clients, servers and devices that communicate through the Endian Product to reach the Internet, as well as VPN connections from remote VPN clients or from remote VPN gateways (each remote gateway counts as one user).
2.6 "Number of Users". You acknowledge and accept that the number of Users may be monitored by ENDIAN through Endian Network. If the number of Users exceed the maximum possibly provided by the Applicable Additional License Terms, Endian may suspend any support and maintenance services by disabling access to Endian Network, with 30 days prior notice, unless You upgrade Your license to the new number of Users within 30 days from receipt of Endian's notice. During the period of time from when the number of users has been exceeded to when the deficiency has been cured, Endian shall have no responsibility for malfunctioning or lack of upgrades, unless in the event that Endian acted with malicious intent or gross negligence.