php / ajax REMOTE_ADDR set to IP of bogus network adapter

Question

today I came a across a pretty strange behaviour of an php based application of mine. In a certain part of the system there\'s an UI making use of AJAX-calls to fill list bo

Answer 1

Unfortunately, you have to take all IP information with a grain of salt.

IP addresses are gathered during the request by taking the packet and request information into account. Sadly, this information can easily be spoofed or even be incorrect (based on a large number of network probabilities) and should not be used for anything more than vanity purposes.