IPv6地址的正则表达式验证[重复]

Question

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• Regular expression that matches valid IPv6 addresses 30 answers

i am trying to write a regular expression for validating IPv6 address,IPv4 address and host name.

My regular expression is : ^[a-zA-Z0-9./_:-]{0,128}$

it is validating everything except the ipv6 address like below :

2001:1000:1000:1000:20c:29ff:feee:a40e/64

if i remove /64, it works but with /64 its not working, need help as i am new to regular expressions.

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Answer 1

My regex is rusty, but you need to add the pattern for "/64" and other such subnet patterns right before the $.