HP-UX IPv6 Transport Administrator's Guide (September 2004)

Features Overview
Limitations
Chapter 1 7
Limitations
The following section describes limitations of IPv6 transport in the
HP-UX 11i v2 September 2004 release. These limitations also exist in
the base (default) HP-UX 11i v2 IPv6 transport.
setparms Not Enhanced for IPv6 Configuration
The setparms utility has not been enhanced to support IPv6
configuration.
Multihomed Host Limitation
In the absence of a router that is advertising prefixes, no more than one
interface can be configured with IPv6 addresses on a host with multiple
physical network interfaces. If multiple physical interfaces are
configured with IPv6 addresses, and if there is no Router Advertisement
received on any interfaces, the host has no way of knowing which
interface to send packets out on. If packets are sent out on the interface
that is on a different link than the destination node, then communication
will fail. This configuration is neither recommended nor supported.
Distributed File System Limitations
NIS+, NIS, and NFS are currently not supported over IPv6.
SAM Limitation
SAM has not been enhanced to support the tunneling enhancements
available with the HP-UX 11i v2 September 2004 release. The tunneling
configuration in the HP-UX 11i v2 September 2004 release must be done
by editing the /etc/rc.config.d/netconf-ipv6 file or by using the
ifconfig command.
Socket Caching Limitation
Socket caching does not support IPv6.