[ 1526.416689][T19707] gre: GRE over IPv4 demultiplexer driver
[ 1526.913381][T19730] ip_gre: GRE over IPv4 tunneling driver
[ 1542.931675][T20301] ip6_gre: GRE over IPv6 tunneling driver
[ 1553.529797][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1555.513752][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1557.369749][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1559.417749][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1580.575092][T21681] ping (21681) used greatest stack depth: 22704 bytes left