Regex to match all local and private ips

ip_regex.md

Regex to match all Privates and Local IPs

Need to match:

Subnet	Regex
10.0.0.0/8	^10(\.(0|1[0-9]{0,2}|5[0-5]|[1-9]{2}|[0-4][0-9])){3}$
127.0.0.0/8	^127(\.(0|1[0-9]{0,2}|25[0-5]|[1-9]{2}|2[0-4][0-9])){3}$
172.16.0.0/12	^172\.((?P<f>1)?(?(f)[6-9])|(?P<s>2)?(?(s)[0-9])|(?P<t>3)?(?(t)[0-1]))(\.[0-2]([0-5]){0,2}){2}$
192.168.0.0/16	^192\.168(\.(0|1[0-9]{0,2}|25[0-5]|[1-9]{2}|2[0-4][0-9])){2}$

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Chained

^(10(\.(0\|1[0-9]{0,2}\|5[0-5]\|[1-9]{2}\|[0-4][0-9])){3}\|127(\.(0\|1[0-9]{0,2}\|25[0-5]\|[1-9]{2}\|2[0-4][0-9])){3}\|172\.((?P<f>1)?(?(f)[6-9])\|(?P<s>2)?(?(s)[0-9])\|(?P<t>3)?(?(t)[0-1]))(\.[0-2]([0-5]){0,2}){2}\|192\.168(\.(0\|1[0-9]{0,2}\|25[0-5]\|[1-9]{2}\|2[0-4][0-9])){2})$