HP-UX IPv6 Transport Administrator's Guide for TOUR 2.0 (April 2004)

Features Overview

IPv6 Transport (bundled as part of TOUR 2.0)

Chapter 16

• Router Advertisement: Router Functionality as speciﬁed in RFC

2461 “Neighbor Discovery for IP Version 6 (IPv6)”, is implemented

with a new daemon, rtradvd, and an accompanying conﬁguration

ﬁle, /etc/rtradvd.conf. The rtradvd daemon listens to router

solicitation and sends router advertisement messages on demand or

periodically (as described in RFC 2461). These advertisements allow

any listening host to conﬁgure their addresses and some other

parameters automatically without manual intervention. They can

also choose a default router based on these advertisements.

Router advertisement is conﬁgured on a per interface basis. Refer to

the rtradvd.conf(4) man page for more information.

• FDDI Link Support.

• MC/ServiceGuard Enablement for IPv6 support.

Additional HP-UX 11i v1 IPv6 Transport Features

The following IPv6 transport features are also available as part of TOUR

2.0 (these were in TOUR 1.0 and have been available since the ﬁrst

HP-UX 11i v1 IPv6 product, IPv6NCF11i, was offered):

• IPv6/IPv4 Dual Stack: HP-UX 11i v1 IPv6 supports both IPv4 and

IPv6 applications. Programmers can write IPv6 applications that

communicate with both IPv6 and IPv4 peers. Existing IPv4

applications do not need to be modiﬁed.

• Tunneling: IPv6 tunneling enables IPv6/IPv4 hosts and routers to

connect with other IPv6/IPv4 hosts and routers over the existing

IPv4 network. IPv6 tunneling encapsulates IPv6 datagrams within

IPv4 packets. The encapsulated packets travel across an IPv4

infrastructure until they reach their destination host or router. The

IPv6-aware host or router decapsulates the IPv6 datagrams,

forwarding them as needed. IPv6 tunneling eases IPv6 deployment

by maintaining compatibility with the large existing base of IPv4

hosts and routers.

• Full Ethernet Link Support.

• IPv6 Stateless Address Autoconﬁguration.

• IPv6 Neighbor Discovery.

• TCP/UDP over IPv6, PMTUv6, ICMPv6, IPv6 MIBs and Sockets

APIs.