olemus
protokolli IP versioon 4,
alates 1981

ülevaateid
https://bluecatnetworks.com/glossary/what-is-ipv4/

https://www.uptrends.com/what-is/ipv4

https://icannwiki.org/IPv4

https://en.wikipedia.org/wiki/IPv4

https://en.wikipedia.org/wiki/Category:IPv4

https://web.nmsu.edu/~enanawa/et464/pdf_instructions/IPv4-Primer.pdf

http://www.steves-internet-guide.com/ipv4-basics/

standard
https://tools.ietf.org/html/rfc791

turvalisus
https://seanconvery.com/v6-v4-threats.pdf

vt ka
- IPv6
- IPsec