If your addresses are always on the end of a line, then anchor on that: ip_at_end = re.compile(r'(?:[0-9]{1,3}\.){3}[0-9]{1,3}$’, re.MULTILINE) This regular expression only matches dotted quads (4 sets of digits with dots in between) at the end of a line. Demo: >>> import re >>> ip_at_end = re.compile(r'(?:[0-9]{1,3}\.){3}[0-9]{1,3}$’, re.MULTILINE) >>> example=””‘\ … Only addresses on … Read more
Q1: Basically, yes. You should note though that there are different kinds of network addresses such as IP addresses, subnet addresses/prefixes, or MAC addresses. The exact meaning of each term depends on context. Q2: If the IP address/mask is 184.19.39.34/16 then 184.19.0.0/16 is the subnet address. 39.34 is the host part of the IP address … Read more
As Ron Maupin described, the solution is very simple $ipv6 = “8ab8:7f70::”; $ipv4 = hexdec(substr($ipv6, 0, 2)). “.” . hexdec(substr($ipv6, 2, 2)). “.” . hexdec(substr($ipv6, 5, 2)). “.” . hexdec(substr($ipv6, 7, 2)); 3 solved Convert IPv6 to IPV4 PHP [closed]