Bing found the following results
Open "Internet Protocol Version 4 (TCP/IPv4) Properties" using ...
Internet Protocol version 4 - Wikipedia
What Is IPv4 (Internet Protocol Version 4)? - Coursera
Internet Protocol - Wikipedia
IPv4 - NETWORK ENCYCLOPEDIA
IPv4 | Internet Protocol Version 4 - Everything You Need to Know …
What is IPv4? Everything you need to know - ClouDNS Blog
9 IP version 4 - An Introduction to Computer Networks
Internet Protocol Version 4 - Techopedia
What is the Internet Protocol? | Cloudflare