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Regular Expression Details

Title Test Find Class A Network Number
Expression
^(10\.[0-9]|[1-9][0-9]|[1-2][0-5][0-5]\.[0-9]|[1-9][0-9]|[1-2][0-5][0-5]\.[0-9]|[1-9][0-9]|[1-2][0-5][0-5])$
Description
The IANA resrved 24-bit block of IP address space for private internets. It's just a single class A network number. This is also RFC 1918 compliant.
Matches
10.0.0.0 | 10.255.255.255
Non-Matches
17.16.0.0 | 192.168.255.255
Author Rating: Not yet rated. Ted Cambron
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Existing User Comments

Title: Malfunction
Name: WolfgangBadura@aon.at
Date: 4/17/2008 9:49:28 AM
Comment:
Installed are Win XP SP2 VB 6.0 SP 5 and Microsofts VBScript Regular Expression 5.5. Each internal address (eg. 192.168.111.19) does not match. I testet the following pattern and it goes: \b192\.168\.([0-9]|[1-9][0-9]|[1-9][0-9][0-9])\.([0-9]|[1-9][0-9]|[1-9][0-9][0-9])\b


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