When we use the Internet, a communication protocol called IP (Internet Protocol) is being used. Currently, the mainly used version is IPv4 (IP version 4). When communicating with this IP, a unique number called the IP address is always needed to identify the destination address. In IPv4, however, there are only 232 (approx 4.3 billion) IP addresses. Possible IP addresses (IPv4 address) for IPv4 are running short, causing serious problems.
A new IP called 'IPv6' (IP version 6) was proposed and has been implemented to solve the problem. IPv6 has approx 2128 (approx 340 undecillion, meaning 340 trillion, trillion trillion) of IP addresses, which is virtually infinite. Many companies like telecommunication carriers, Internet Service Providers (ISPs), hosting, and housing services companies have already launched various services that respond to Ipv6.
Greater number of people is concerned with security when using network. We think it is important to respond to IPSec technology which collectively encrypts and detects tampering of communications running on the IP platform.
Very early on, we started working for cutting edge telecommunication platform technologies like Ipv6 and IPSec and conducted research and development to make implementation possible. In 2002, we unveiled our prototype of IPv6 supporting products and started sales in 2005. Two years later in 2007, we released products supporting IPsec; today we are committed to providing many new products to deliver even greater support. We have obtained the IPv6 Ready Logo certification, and are dedicating further efforts to improve our quality.
Figure 1: The first multifunction device (MFP) that supports IPv6 released in December, 2005 from Ricoh with IPv6 Ready Logo
Figure 2: MP C6003/C5503/C4503/C3503/C3003 released in June, 2013 with IPv6 Ready Logo Phase-2 (Both IPv6 Core Protocols and IPsec are supported)）