Transport Optional Upgrade Release (TOUR) 2.4 Release Notes

What Is in This Version

TOUR 2.4 includes the following components:

• New Feature in HP-UX Transport

• PPP Enhancements (PPPoE and PPPv6)

• HP-UX Mobile IPv6 A.01.00

The TOUR 2.0 functionality is automatically included in TOUR 2.4 except where superseded

by TOUR 2.4 functional differences.

If you are new to TOUR, you may find it helpful to read the Transport Optional Upgrade

Release (TOUR) release notes available at

http://docs.hp.com/hpux/netcom/index.html#HP-UX%20LAN.

New Feature in HP-UX Transport

This section provides a summary of the new HP-UX transport feature available with TOUR

2.4 on the HP-UX 11i v1 operating system.

NOTE On HP-UX 11i v1, the HP-UX transport software included with the operating

system does not include any IPv6 functionality. All the IPv6 functionality is

delivered as part of TOUR 2.4.

Default Gateway for each Physical IPv4 Interface

TOUR 2.4 allows you to configure a default gateway for each IPv4 interface. This feature is by

default disabled in the HP-UX 11i v1 Transport software. When this feature is disabled,

TOUR 2.4 behaves similar to TOUR 1.0 on the HP-UX 11i v1 operating system and the base

HP-UX 11i v1 Transport software.

By configuring a default gateway for each physical IPv4 interface, a system can now send an

outbound packet through the interface for the address to which the socket (or communication

endpoint) is bound. If the socket (or communication endpoint) is not bound to a specific

address, the system sends the packet through the interface on which the inbound packet was

received. Prior to this support, a system could receive inbound packets through multiple

physical interfaces connected to the same subnet but all outbound packets were sent through

a single interface. This feature is already supported for IPv6 interfaces.