
IPC@CHIP
®
DK55
Getting Started V1.0
3.4.7 IPv4/v6 Dual Stack
In addition to the IPv4 protocol, the TCP/IP protocol stack of the IPC@CHIP
®
SC23 provides
IPv6.
IPv6 is sometimes called the Next Generation Internet Protocol, or IPng. The current Internet
and most of corporate or private intranets use IPv4, developed in 1970s and 1980s. Now with
IPv6, the first significant upgrade of the Internet protocol has been started. The compelling
reason behind the formation of IPv6 was lack of address space, especially in the heavily
populated countries of Asia such as China.
The most important changes from IPv4 to IPv6 can be summarized as follows:
•
Expanded addressing and auto configuration mechanisms
•
The address size for IPv6 is 128 bits, instead of 32 bits for IPv4. This solves the problem of
limited address space and offers much simpler address configuration.
The TCP/IP stack of the IPC@CHIP
®
works as a dual layer stack. If the IPv6 protocol is
enabled on the IPC@CHIP
P
®
, all TCP/IP applications (e.g. HTTP, Telnet or FTP servers) are
accessible via both IPv4 and IPv6. The provided socket interface supports both protocol types.
For more information on IPv6 on the IPC@CHIP
®
please refer to the IPv6 section of the
@CHIP-RTOS API documentation.
Copyright © 2007 Beck IPC GmbH
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