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Cisco ASA Series CLI Configuration Guide
Chapter 1 Configuring Objects
Configuring Objects
Detailed Steps
Step 1
To test a regular expression to make sure it matches what you think it will match, enter the following
command:
hostname(config)#
test
regex
input_text regular_expression
Where the
input_text
argument is a string you want to match using the regular expression, up to 201
characters in length.
The
regular_expression
argument can be up to 100 characters in length.
Use
Ctrl+V
to escape all of the special characters in the CLI. For example, to enter a tab in the input
text in the
test regex
command, you must enter
test regex “test[Ctrl+V Tab]” “test\t”
.
If the regular expression matches the input text, you see the following message:
INFO: Regular expression match succeeded.
If the regular expression does not match the input text, you see the following message:
INFO: Regular expression match failed.
Step 2
To add a regular expression after you tested it, enter the following command:
hostname(config)#
regex
name regular_expression
Where the
name
argument can be up to 40 characters in length.
The
regular_expression
argument can be up to 100 characters in length.
Examples
The following example creates two regular expressions for use in an inspection policy map:
\
Escape character
When used with a metacharacter, matches a literal
character. For example,
\[
matches the left square
bracket.
char
Character
When character is not a metacharacter, matches the
literal character.
\r
Carriage return
Matches a carriage return 0x0d.
\n
Newline
Matches a new line 0x0a.
\t
Tab
Matches a tab 0x09.
\f
Formfeed
Matches a form feed 0x0c.
\x
NN
Escaped hexadecimal number
Matches an ASCII character using hexadecimal (exactly
two digits).
\
NNN
Escaped octal number
Matches an ASCII character as octal (exactly three
digits). For example, the character 040 represents a
space.
Table 1-1
regex Metacharacters (continued)
Characte
r
Description
Notes
Summary of Contents for 5505 - ASA Firewall Edition Bundle
Page 28: ...Glossary GL 24 Cisco ASA Series CLI Configuration Guide ...
Page 61: ...P A R T 1 Getting Started with the ASA ...
Page 62: ......
Page 219: ...P A R T 2 Configuring High Availability and Scalability ...
Page 220: ......
Page 403: ...P A R T 2 Configuring Interfaces ...
Page 404: ......
Page 499: ...P A R T 2 Configuring Basic Settings ...
Page 500: ......
Page 533: ...P A R T 2 Configuring Objects and Access Lists ...
Page 534: ......
Page 601: ...P A R T 2 Configuring IP Routing ...
Page 602: ......
Page 745: ...P A R T 2 Configuring Network Address Translation ...
Page 746: ......
Page 845: ...P A R T 2 Configuring AAA Servers and the Local Database ...
Page 846: ......
Page 981: ...P A R T 2 Configuring Access Control ...
Page 982: ......
Page 1061: ...P A R T 2 Configuring Service Policies Using the Modular Policy Framework ...
Page 1062: ......
Page 1093: ...P A R T 2 Configuring Application Inspection ...
Page 1094: ......
Page 1191: ...P A R T 2 Configuring Unified Communications ...
Page 1192: ......
Page 1333: ...P A R T 2 Configuring Connection Settings and QoS ...
Page 1334: ......
Page 1379: ...P A R T 2 Configuring Advanced Network Protection ...
Page 1380: ......
Page 1475: ...P A R T 2 Configuring Modules ...
Page 1476: ......
Page 1549: ...P A R T 2 Configuring VPN ...
Page 1550: ......
Page 1965: ...P A R T 2 Configuring Logging SNMP and Smart Call Home ...
Page 1966: ......
Page 2059: ...P A R T 2 System Administration ...
Page 2060: ......
Page 2098: ...1 8 Cisco ASA Series CLI Configuration Guide Chapter 1 Troubleshooting Viewing the Coredump ...
Page 2099: ...P A R T 2 Reference ...
Page 2100: ......