regular expression for ipaddress and mac address

Question

can anyone suggest me the regular expression for ip address and mac address ?

i am using python & django

for example , http://[ipaddress]/SaveData/127.0.

Answer 1

alright so this is what I use for IPV4

([0-9]{1,3}.){3}[0-9]{1,3}

tested with

127.0.0.1 255.255.255.255

and works for all