[ 3206.013615][T26105] gre: GRE over IPv4 demultiplexor driver
[ 3208.211273][T26129] ip_gre: GRE over IPv4 tunneling driver
[ 3271.605874][T26711] ip6_gre: GRE over IPv6 tunneling driver
[ 3310.012223][T27054] ping (27054) used greatest stack depth: 21760 bytes left
[ 3315.946882][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3321.770808][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3326.634815][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3332.458814][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!