User Guide

Chapter 7 TunnelGuard SRS Builder 341
Nortel Secure Network Access Switch 4050 User Guide
The following are examples of regular expressions for string-based Registry Key
values:
• ^Nortel .*Networks — matches anything that starts with Nortel and ends with
Networks
• \w* — matches TunnelGuard_2; does not match TunnelGuard_2.0.0 (word
definition includes_but not “.”)
• [a-z] {2}_[\.\d]+ — matching tg_2.0.0; does not match Tg_2.0.0; does not
match tg_; does not match tg_two; does not match tug_2.0.0
Creating a registry entry
To create a registry entry:
1 Click the Software Definition tab in the TunnelGuard Software and Rule
Definition Tool page.
2 Click the Software Definition Entry menu and select Add Registry Key Entry.
The Registry Entry page opens (see Figure 91 on page 342).
$ The end of a line
\b A word boundary
Table 67 Constructs for string based regular expressions (Sheet 2 of 2)
String regular expression Description