IIJ Adds New Function to IIJ Secure Remote Access Service; New Function Links IIJ Service with Customer's Authentication Server

Business Wire, May 23, 2005

TOKYO -- Internet Initiative Japan Inc. (IIJ, NASDAQ:IIJI), one of Japan's leading Internet access and comprehensive network solutions providers, today announced that it will upgrade the IIJ Secure Remote Access Service to provide the Authentication Service Link Option, which creates a link between IIJ's service and the authentication server on the customer's network when users access the network remotely.

IIJ Secure Remote Access creates an encrypted connection through VPN tunneling using L2TP/IPsec and PPTP, which enables secure access to the company network over the Internet. Earlier implementations of this service required the creation and administration of remote access accounts for use with dialup connections and VPN tunneling, but the Authentication Server Link Option creates a connection to the customer's authentication server using protocols like RADIUS and LDAP. This system makes it possible to use a variety of authentication methods, including one-time passwords, which are extremely popular because of their strong authentication infrastructure, and Microsoft's Active Directory, which centralizes user account administration.

Though remote access to company mail servers and groupware provides tremendous convenience and flexibility, it also requires extremely strong security measures. The IIJ Secure Remote Access Service provides communication relay at the application level, and through strict control over available servers and protocols for each user group, the risk of unauthorized access and leaking of confidential information is minimized, providing the ideal enterprise security solution. The Authentication Service Link Option increases the power of this service by expanding the number of authentication methods available and enabling comprehensive security measures in a remote access environment.

Along with this new option, IIJ is providing a new Rule Viewer feature that allows existing service users to view the access control rules on their account using a Web interface. The administrators report has been expanded to include an Account Information page for each account as well as activity logs and other information.

IIJ will continue to upgrade its services and provide more users with an even better Internet environment.

About Authentication Server Link Option
---------------  -----------------------------------------------------
  Compatible       LDAP, RADIUS
   Protocols
---------------  -----------------------------------------------------
Tested Servers   - Active Directory (Microsoft Windows 2000 Server)
                 - RSA Authentication Manager
                 - OpenLDAP
                 - FreeRADIUS
                 -- For a fee,IIJ can build an Authentication Server
                     at the customer's premises.
---------------  -----------------------------------------------------
  Option Fees     Initial Fee (Includes consulting and technical
                   support until system operation testing is
                   complete)
                           500,000 yen
                  Monthly Fees
                     - Up to 100 Users:  20,000 yen
                     - Up to 250 Users:  50,000 yen
                     - Unlimited Users:  Ask for an estimate.
---------------  -----------------------------------------------------

About IIJ

Founded in 1992, Internet Initiative Japan Inc. (IIJ, NASDAQ: IIJI) is one of Japan's leading Internet-access and comprehensive network solutions providers. The company has built one of the largest Internet backbone networks in Japan, and between Japan and the United States. IIJ and its group of companies provide total network solutions that mainly cater to high-end corporate customers. The company's services include high-quality systems integration and security services, Internet access, hosting/housing, and content design.

The statements within this release contain forward-looking statements about our future plans that involve risk and uncertainty. These statements may differ materially from actual future events or results. Readers are referred to the documents furnished by Internet Initiative Japan Inc. with the SEC, specifically the most recent reports on Forms 20-F and 6-K, which identify important risk factors that could cause actual results to differ from those contained in the forward-looking statements.