A: This occurs due to how WebRTC works in browsers. WebRTC gathers possible network routes (IP addresses) to establish fast peer-to-peer connections for services like video calls. Because this information can be accessed via JavaScript, websites may be able to see local or alternative IP addresses.
Advantages
It allows faster and more stable connections for services such as Zoom or Google Meet.
Disadvantages
A malicious site could use this mechanism to obtain local network information or reveal an IP outside the VPN tunnel. This situation is commonly called a "WebRTC leak".
Addresses such as 192.168.x.x, 10.x.x.x, or 172.16.x.x are private network addresses and cannot directly reveal your physical location. However, from a privacy perspective they expose more network information than necessary.If you want to prevent this completely, you can disable or restrict WebRTC through browser settings or privacy extensions.