Table of contents
CP 1543-1
8 Operating Instructions, 05/2017, C79000-G8976-C289-07
4.4.1.2 Successfully establishing VPN tunnel communication between the CP 1543-1 and
SCALANCE M ....................................................................................................................39
4.4.1.3 VPN tunnel communication with SOFTNET Security Client .................................................39
4.4.1.4 CP as passive subscriber of VPN connections ....................................................................40
4.4.2 Firewall ..............................................................................................................................41
4.4.2.1 Firewall sequence when checking incoming and outgoing frames .......................................41
4.4.2.2 Notation for the source IP address (advanced firewall mode) ..............................................41
4.4.2.3 HTTP and HTTPS not possible with IPv6............................................................................41
4.4.2.4 Firewall settings for connections via a VPN tunnel ..............................................................41
4.4.3 Online functions .................................................................................................................42
4.4.3.1 Online diagnostics via port 8448 .........................................................................................42
4.4.3.2 Online diagnostics and downloading to station with the firewall activated ............................42
4.4.4 Filtering of the system events .............................................................................................43
4.5 Time-of-day synchronization ...............................................................................................43
4.6 Program blocks for OUC.....................................................................................................44
4.7 Setting up FTP communication ...........................................................................................47
4.7.1 The program block FTP_CMD (FTP client function) ............................................................47
4.7.2 Configuring the FTP server function....................................................................................49
4.8 IP access protection with programmed communications connections ..................................52
5 Diagnostics and upkeep ........................................................................................................... 53
5.1 Diagnostics options ............................................................................................................53
5.2 Diagnostics with SNMP ......................................................................................................53
5.3 Replacing a module without a programming device ............................................................56
6 Technical specifications ........................................................................................................... 57
7 Approvals .............................................................................................................................. 59
Index .................................................................................................................................... 65
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