Transport Optional Upgrade Release (TOUR) 2.0 Release Notes (May 2004)

Transport Optional Upgrade Release (TOUR) 2.0 Release Notes
What Is in This Version
6
• IPv6 Transition Mechanisms Enhancements: TOUR 2.0 provides several IPv6
transition mechanism changes from those previously offered. Highlights of these changes
are provided below. There have been no changes to the dual-stack mechanism, but several
important changes to the tunneling mechanisms. The following RFCs are supported in
TOUR 2.0 (the IETF documents listed below are available at http://www.ietf.org):
RFC 2473 - Packet Tunneling in IPv6
RFC 2893 - Transition Mechanisms for IPv6 Hosts and Routers
RFC 3056 - Connection of IPv6 Domains via IPv4 Clouds
IMPORTANT As a result of supporting RFC 2893, tunnel configuration on HP-UX IPv6
bundled as part of TOUR 2.0, requires specific changes from tunnel
configurations on previous HP-UX IPv6 releases. If you have previously set
up any tunneling on your HP-UX 11i v1 system(s) you will need to make
changes to your TOUR 2.0 system for tunneling to work.
For detailed information, including specific configuration instructions, refer
to the HP-UX IPv6 Transport Administrator’s Guide for TOUR 2.0,
available from http://docs.hp.com/hpux/netcom/index.html#IPv6.
Be aware that SAM has not been enhanced to support these tunneling
enhancements and cannot be used for tunnel configuration with TOUR 2.0.
— Configured tunneling is point-to-point with addresses assigned to tunnel
endpoints: In conformance with RFC 2893 (which obsoletes RFC 1933) configured
tunnels are pseudo-interfaces with associated addresses. Previously, when conforming
to RFC 1933, tunnels were implemented using special routing entries. The RFC 1933
implementation did not allow addresses to be associated with tunnels and hence,
routing protocol daemons were not able to operate over tunnels.
As a result, the process for configuring tunnels using the ifconfig and route
commands and the /etc/rc.config.d/netconf-ipv6 file is different than it was in
TOUR 1.0 (and IPv6NCF11i) for HP-UX 11i v1.
— HP-UX Server can be configured as a router in a point-to-point configured
tunnel: You can configure tunneling between the following network nodes:
host->router; host->host; router-> host; and router->router. In TOUR 2.0, the HP-UX
server can perform the role of the router in the tunnel configuration. Prior to TOUR
2.0 (in TOUR 1.0 and IPv6NCF11i), the HP-UX server would only perform the host
role. Specific configuration instructions on how to enable the HP-UX server for
performing tunneling in the role of the router is provided in the HP-UX IPv6
Transport Administrator’s Guide for TOUR 2.0.