Managing Systems and Workgroups: A Guide for HP-UX System Administrators

Planning a Workgroup
Internet Protocols and IPv6
Chapter 2 135
Internet Protocols and IPv6
Internet Protocol version 6 (IPv6) is a new generation of the Internet
Protocol that is beginning to be adopted by the Internet community. IPv6
is also referred to as “IPng” (IP next generation). It provides the
infrastructure for the next wave of Internet devices, such as personal
digital assistants (PDAs), mobile phones, and appliances. It also provides
increased connectivity for existing devices such as laptop computers.
The most visible difference between today's commonly used version of IP
(IP version 4) and IPv6 is the larger address space supported by IPv6.
IPv6 supports 128-bit internet addresses, compared to the 32-bit internet
address supported by IP version 4. Additionally, IPv6 offers greater ease
of configuration and manageability as well as increased security.
Beginning with HP-UX 11i version 2, IPv6 software is installed on the
server. Once the IPv4 and IPv6 interface(s) are configured, the server is
considered to be an IPv6/IPv4 “dual stack” implementation. This implies
that IPv4 and IPv6 both run concurrently and independently. The server
can communicate with both IPv4 and IPv6 nodes and can identify
packets from other servers and clients as being IPv4 or IPv6.
IPv6 Information
For more information, see the following documents, available at
http://docs.hp.com.
• HP-UX 11i IPv6 Transport Administrator’s Guide
• HP-UX IPv6 Porting Guide