Finding the first and the last address for a given IP address
15179
How does IPv4 Subnetting Work?
88666
How to convert standard IP address format string to hex and long?
82259
How to find the physical address of a variable from user-space in Linux?
122275
expand an IPv6 address so I can print it to stdout
143061
What cross-platform command-line tool allows me to get my external IP address?
70085
Grepping logs for IP addresses
53089
How do I know my IP address?
128533
Regex for IP address
143083
Identify an unknown IP in our network
59229
How do I check whether a value in a string is an IP address
100383
calculate IP range using PHP and CIDR
64209
How to set up multiple IP addresses?
9601
How to get the physical interface IP address from an interface
71679
How can I resolve a hostname to an IP address in a Bash script?
66110
Python lookup hostname from IP with 1 second timeout
2663
Working with IPv6 Addresses in PHP
133985
How to filter IPv4 and IPv6 addresses?