Hi Monks, I'm trying to get the IP address from the following format log file for pop-before-smtp perl script. The regex syntax provided there is not working for me actually. 
2011.05.13-14:54:58, test@xyz.com, 180.211.51.11, pop3
2011.05.13-14:57:26, test@xyz.com, 160.234.47.12, pop3
2011.05.13-14:57:54, www@abcd.com, 166.22.22.224, imap
2011.05.13-14:57:55, www@somedomain.com, 172.58.22.154, imap
2011.05.13-15:03:08, www@example.com, 190.22.120.44, pop3

[download]
Kindly advice me the regex to get only the ip address from each line. Thanks for your help in advance.

In reply to regex for perl script by Anonymous Monk

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