Filter
Top Products
2
2-30 TCP/IP Ethernet Communications User’s Manual – January 1996
GFK-1004B
Procedure 6: Pinging the TCP/IP Interfaces on the Network
PING (Packet InterNet Grouper) is the name of a program used in the Internet to test
reachability of destinations by sending them an ICMP echo request and waiting for a
reply. Most hosts, as nodes on the Internet are called, including the Ethernet Interface,
implement a PING command.
The user should ping each installed Ethernet Interface. When the Ethernet Interface re-
sponds to the ping, it verifies that the interface is operational and configured properly.
Specifically it verifies that acceptable configuration information and communications
software have been downloaded to the interface.
The ping can be executed from a UNIX host or PC (most TCP/IP communications soft-
ware provides a PING command) or from an Ethernet Interface. When using a PC, the
user can refer to the documentation for the PING command, but in general all that is re-
quired is the IP address of the remote host as a parameter to the PING command. For
example, “ping 3.0.0.1”.
Perform the following steps to ping from an Ethernet Interface.
1. Connect the GSM locally to one of the Ethernet Interfaces. Refer to Using the GSM
“Access Station Manager” Function in Procedure 2.
2. Enter the NODE command to verify that the local interface has the correct IP
address.
> node
IC697 PLC Factory LAN Interface
Copyright (c) 1990-1995. All rights reserved.
PROM version 2.00 (xxAx), Software version 2.00 (xxAx)
IP address = 3.0.0.1
MAC address = <<080019010688>>, MAC default = <<080019010688>>
EM7A2
3. Login to be able to use the PING command. (The LOGIN command is described in
Chapter 4).
> login
Password : (The default password is “system”.)
Logged in
=
4. Enter the PING command supplying in turn the IP address for each remote Ethernet
Interface to be tested.
= ping 3.0.0.2
<<<Ping Initiated>>>
<<< Ping Results >>>
Command: ping 3.0.0.2 1 100 64
Sent = 1, Received = 1, No Timely Response = 0
Late/Stray Response = 0
Round-trip (ms) min/avg/max 0/1/10