Meanings
alternative IP-in-IP
- InternetuncountableA protocol for sending IP packets over an existing IP network.
IP in IP is an unusual mechanism: not only does it use two network layers, it uses the same protocol on both.
1 more example
Although IP in IP incurs an overhead, as the size of the headers is doubled, it may allow you to create a connection between two hosts that would otherwise be blocked by a firewall.
Origin
Contraction of IP in IP encapsulation used in rfc:2003, which specified the protocol.
Full word history & related roots →Cite this entry
IP in IP. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/IP%20in%20IP
“IP in IP.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/IP%20in%20IP. Accessed November 4, 2026.
WatkinsX Dictionary, s.v. “IP in IP,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/IP%20in%20IP.
Source: IP in IP on Wiktionary, CC BY-SA 4.0.