[ 1684.973528][T17880] gre: GRE over IPv4 demultiplexer driver
[ 1685.514955][T17904] ip_gre: GRE over IPv4 tunneling driver
[ 1702.612991][T18475] ip6_gre: GRE over IPv6 tunneling driver
[ 1708.779434][T18724] ping (18724) used greatest stack depth: 22952 bytes left
[ 1713.972087][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1716.147996][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1718.133001][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1720.308004][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!