Telserv Manual

Using TELNET to Connect to Telserv
Telserv Manual—427174-009
8-5
Addressing Remote Hosts

TCP/IP Configuration and Management Manual (if you are using NonStop TCP/IP)

TCP/IP (Parallel Library) Configuration and Management Manual (if you are using
Parallel Library TCP/IP. H-series and J-series systems do not support Parallel
Library TCP/IP.)

TCP/IPv6 Configuration and Management Manual (if you are using NonStop
TCP/IPv6)

Cluster I/O Protocols (CIP) Configuration and Management Manual
IPNODES File
For those who use Telserv in conjunction with NonStop TCP/IPv6 or CIP, the IPNODES
file contains information regarding the known IPv6 (and IPv4) nodes on the network. If
you are using INET6 communications and want to use a name-resolution file, you must
create $SYSTEM.ZTCPIP.IPNODES to support local definitions of IPv4 and IPv6
addresses. (For DUAL mode, you can either use HOSTS for IPv4 addresses and
IPNODES for IPv6 addresses, or you can put your IPv4 addresses in IPNODES.) Use
the ADD DEFINE command of TACL to set the TCPIP^NODE^FILE environment
variable. For example,
2> ADD DEFINE =TCPIP^NODE^FILE, FILE $SYSTEM.ZTCPIP.IPNODES
There is no sample IPNODES file on the SUT; you must create this file yourself if you
want to use it. The format of an IPNODES file is the same as that of a HOSTS file.
For more information about the IPNODES file, see the TCP/IPv6 Configuration and
Management Manual or the Cluster I/O Protocols (CIP) Configuration and
Management Manual.
Addressing Remote Hosts
You can address a remote host by specifying either a host Internet address or a host
name. When you start Telserv with NonStop TCP/IPv6 or CIP serving as the underlying
transport protocol, you can use IPv6 addresses as well as IPv4 addresses. Ask the
system administrator for the Internet address or name of the host system you want to
use.
Host Internet Address (IPv4)
A host can have one or more Internet addresses on each network to which it is
attached. There are three classes of host IPv4 address:
Class A The first number is the network address, and the rest of the numbers are
the local host address.
Class B The first two numbers are the network address, and the rest of the num-
bers are the local host address.
Class C The first three numbers are the network address, and the rest of the num-
bers are the local host address.