However, later PS2 online games required the console to be authorized through Sony's Dynamic Network Authentication System (DNAS) before connecting to the server.
Sun Corporation for example released the OnlineStation, a USB external modem with its EnjoyMagic software providing web and email to customers.
[5] The official network adapter featuring both broadband Ethernet and a 56k modem was released in Japan on July 19, 2001 alongside Final Fantasy X.
[12] Despite the advanced take-up of broadband in the United States compared to Japan, Sony decided to still include a 56k modem for narrowband dial-up customers.
[15] Central Station or "Network Gaming" launched on June 11 in Britain, July 2 in France,[16] August 13 in Sweden,[17] September in the Netherlands.
[22] For the original models (non-"Slimline") of the PlayStation 2 console, a network adapter was needed to play online and use a hard drive.
Playing online games requires that users set up the system's network connection configuration, which is saved to a memory card.
[23] SOCOM U.S. Navy SEALs, released in August of the same year, was one of the first video games that allowed voice chat on a console.
Computer programs such as XBSlink, SVDL and XLink Kai also allowed users to achieve online play for some PS2 games by using a network configuration that simulates a worldwide LAN.