Nfs Client; Snmp Agent - WAGO -I/O-IPC-C6 Manual

WAGO-I/O-SYSTEM 750
758-874/000-110 WAGO-I/O-IPC-C6
13.7.7

NFS Client

An NFS client is integrated in the kernel, which enables the addition of remote
drives to one's own file system. To integrate a directory from a remote system, it
is assigned to the Linux directory structure like a partition of a hard drive with the
command
released directory must be available on the remote PC. The integration of the
remote directory into the file system of the I/O-IPC is done with the following
command:
mount -t nfs -o nolock <IP/hostname>:/<Verzeichnis>
/<lokales Verzeichnis>
Example:
The drive /mnt is present when the I/O-IPC is delivered to the customer. It is used
to incorporate foreign drives. Access to the drive incorporated through NFS is
conducted as if accessing a local directory. If drives are to be automatically
incorporated during system startup, these can be entered in the directory /etc/rc.d
using a script.
13.7.8

SNMP Agent

The "Simple Network Management Protocol" is used to monitor and control
network components. During communication via SNMP, SNMP managers
(clients) and SNMP agents (servers) come into use.
The manager installed on a PC controls the agents installed on the I/O-IPC via a
TCP/IP network. It can send queries to the I/O-IPC and receive responses. The
agent is used to capture and transmit device data (name, status, OIDs, etc.).
The data of a device that the agent can access or modify are called SNMP objects.
The SNMP objects are posted to the manager via the MIB file (Management
Information Base). OIDs (Object Identifier) are responsible for unique addressing
of the individual information within an MIB.
Use the Web-Based Management (WBM) to configure the SNMP agents of the
I/O-IPC.
The SNMP is supported in version 1, 2c and 3. The SNMP agent is disabled in the
I/O-IPC as delivered. In SNMP versions 1 and 2c, the exchange of messages is
device-related. This requires the IP address of the manager to be specified. This IP
address makes communication between manager and network node possible. In
SNMP version 3, exchanging messages is user-related. Each device that knows
the passwords set via WBM may read or write values from the I/O-IPC. With
SNMPv3, the data can also be transmitted encrypted. This way, the requested
values and those to be written cannot be easily decoded by other on the
ETHERNET. Therefore, SNMPv3 is frequently used on security-relevant
networks.
Manual
Version 2.3.0
. To use the NFS service, an NFS server with a corresponding
mount
> mount –t nfs –o nolock 192.168.1.12:/targetfs /mnt
Operating System 159