TCP/IPv6 Migration Guide

Migration Considerations
HP NonStop TCP/IPv6 Migration Guide—524524-004
3-15
Processes and Protocols
•
Change application-startup files to specify the name of a TCP6SAM process for
the transport-service provider.
•
The TCP6SAM process displays TCPIP instead of TCPIPV6 in SCF return
displays and does not display IPv6 addresses.
•
Change the program name in the configuration database from
$SYSTEM.SYSTEM.TCPMAN to $SYSTEM.SYSTEM.TCP6MAN, and change the
DEFINE for SRL to ZTCP6SRL (you do not have to make these changes for
Integrity NonStop servers). For complete procedures about replacing Parallel
Library TCP/IP with NonStop TCP/IPv6, see the TCP/IPv6 Configuration and
Management Manual.
Processes and Protocols
NonStop TCP/IPv6, when run in DUAL mode, has a new process, a new protocol, and
a significant new feature:
•
The new process, ND6HOSTD, updates the DNS automatically. See the TCP/IPv6
Configuration and Management Manual for more information about ND6HOSTD.
•
The neighbor discovery protocol replaces (from IPv4): ARP, ICMP & ICMP
Redirect. See the TCP/IPv6 Configuration and Management Manual for more
information about the neighbor discovery protocol.
•
The new feature, stateless address autoconfiguration, allows IP addresses to be
automatically assigned to the SUBNET. See the TCP/IPv6 Configuration and
Management Manual for more information about stateless address
autoconfiguration.
Retransmission Timer Enhancements
In NonStop TCP/IPv6, you can alter TCP retransmission variables on an individual
TCP socket basis. See Retransmission Timer Enhancements on page 3-8.
Tips for Migrating From Parallel Library TCP/IP to NonStop
TCP/IPv6
•
Run the OBEYFORM on the current subsystem to get an output of the current
configuration to help you create the new configuration.
•
Update entries in the PROTOCOL configuration file for NonStop TCP/IPv6 to
include the ipv6 and icmpv6 entries from the SMPLPROT file that is shipped with
the SUT. See the G06.nn Software Installation and Upgrade Guide or H06.nn
Software Installation and Upgrade Guide for more information about installing
these files and the TCP/IPv6 Configuration and Management Manual for more
information about the TCP/IP configuration files.