[ 3225.762114][T28989] gre: GRE over IPv4 demultiplexor driver
[ 3226.907239][T29012] ip_gre: GRE over IPv4 tunneling driver
[ 3261.806288][T29584] ip6_gre: GRE over IPv6 tunneling driver
[ 3278.834889][T26230] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3281.294024][T29927] ping (29927) used greatest stack depth: 23296 bytes left
[ 3285.551316][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.263321][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3292.527321][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3296.303310][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!