Configuration
3.17 Security (CP) and certificates
Configuration - DNP3
76 Configuration Manual, 11/2018, C79000-G8976-C508-01
Log settings - Filtering of the system events
Communications problems if the value for system events is set too high
If the value for filtering the system events is set too high, you may not be able to achieve the
maximum performance for the communication. The high number of output error messages
can delay or prevent the processing of the communications connections.
In "Security > Log settings > Configure system events", set the "Level:" parameter to the
value "3 (Error)" to ensure the reliable establishment of the communications connections.
Use of SYSLOG only with 1 VPN connection
If you want to use SYSLOG with level 7 (debug) via VPN connections, this is only possible
with a single configured VPN connection.
VPN (Virtual Private Network)
VPN - IPsec
Virtual Private Network (VPN) is a technology for secure transportation of confidential data in
public IP networks, for example the Internet. With VPN, a secure connection (IPsec tunnel) is
set up and operated between two secure IT systems or networks via a non-secure network.
The IPsec tunnel forwards all data even from protocols of higher layers (HTTP, FTP, etc.).
The data traffic between two network components is transported unrestricted through
another network. This allows entire networks to be connected together via a neighboring or
intermediate network.
● VPN forms a logical subnet that is embedded in a neighboring (assigned) network. VPN
uses the usual addressing mechanisms of the assigned network, however in terms of the
data, it transports its own frames and therefore operates independent of the rest of this
network.
● VPN allows communication of the VPN partners with the assigned network.
● VPN is based on tunnel technology and can be individually configured.
● Communication between the VPN partners is protected from eavesdropping or
manipulation by using passwords, public keys or a digital certificate (authentication).
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