[ 1646.790783][T16056] gre: GRE over IPv4 demultiplexer driver
[ 1647.343422][T16086] ip_gre: GRE over IPv4 tunneling driver
[ 1653.233947][T16338] ping (16338) used greatest stack depth: 23136 bytes left
[ 1664.027253][T16664] ip6_gre: GRE over IPv6 tunneling driver
[ 1675.044450][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1677.092419][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1679.011422][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1681.124421][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1688.798477][T17575] ping (17575) used greatest stack depth: 22960 bytes left