IP Tunnel or IPIP


https://www.juniper.net/documentation/en_US/junos/topics/topic-map/tunnel-services-overview.html


Configurations


IPv6 over IPv4
IPIP
Config for IPv6 in a IP / IP tunnel.

set chassis fpc slot-number pic number tunnel-services bandwidth [1g ...]


Show configuration interfaces ip-1/2/0


unit 0 {
    description "TO:IPv6 over IPv4 tunnel ";
    tunnel {
        source 193.x.x.x;
        destination 4.x.x.x;
    }
    family inet6 {
        address 20x.x.x.x/126;
    }
}
show commands
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