IP Tunneling

Support for unicast IP-over-IP (IP-IP) tunneling for IPv4 and IPv6 traffic signaled by BGP (MX960 and MX2008)—Starting in Junos OS Release 21.4R1, we support an IP-IP encapsulation to facilitate IP overlay construction over an IP transport network.

[See Overview of Next-Hop-Based Dynamic Tunneling Using IP-Over-IP Encapsulation]