Rohde & Schwarz GP-E - Using IEC 104 Protocol Decoders

Application Examples
R&S
®
GP-E/GP-S
205User Manual v16.2.1 ─ 01
– Right anchor: any
– Visited URL: www.amazon.com/books-reused-books-textbooks
No match, because the expression used does not appear as a single word when
read from left to right
●
Case 4:
– Left anchor: any
– Right anchor: word
– Visited URL: www.amazon.com/books-reused-books-textbooks
Matches, because the expression used appears as a single word in reused when
read from right to left
Letters, digits and underscores in search strings are treated as word characters (equiv-
alent to the character classes [:word:], \w and [A-Za-z0-9_]). All other charac-
ters are treated as word boundaries.
4.13.7 Using IEC 104 Protocol Decoders
The IEC 60970-5-104 (IEC 104) protocol is used to transmit traffic between a control
center and a substation in SCADA (standard TCP/IP) networks.
The following examples show two ways of using IEC 104 protocol decoders.
Setting Up Customized IEC 104 Protocol Decoders
Follow the steps below to set up customized IEC 104 protocol decoders on your gate-
protect Firewall.
1. Use any packet analyzer (e.g. Wireshark) to analyze the traffic between the control
center and the substation.
Figure 4-71: Sample Wireshark output.
2. Depending on the results of the analysis in the previous step, you can configure
firewall rules with IEC 104 protocol decoders on your gateprotect Firewall:
Decoder Examples