IP addresses1 min read
What is NAT? How every device at home shares one IP address
How network address translation works, why port forwarding is needed, how it relates to CGNAT, and why IPv6 doesn't need NAT.
#NAT
- Privacy and security2 min read
What is CGNAT (carrier-grade NAT)?
Why your provider may be sharing one public IPv4 address with hundreds of customers, how to tell, and what it breaks.
- IP addresses2 min read
Public vs private IP addresses
Why your laptop's address starts with 192.168 while websites see something else — and what that means for connectivity and privacy.
- IP addresses2 min read
IPv4 vs IPv6: what actually changes
Address size is the headline, but the real differences are in how networks are numbered, how devices configure themselves, and what happens to NAT.