[ 1612.668959][ T1115] gre: GRE over IPv4 demultiplexer driver
[ 1613.154830][ T1138] ip_gre: GRE over IPv4 tunneling driver
[ 1629.434692][ T1717] ip6_gre: GRE over IPv6 tunneling driver
[ 1635.225534][ T1974] ping (1974) used greatest stack depth: 22080 bytes left
[ 1637.438459][T18795] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1640.252336][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1642.300331][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1644.157322][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1646.205324][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!