[ 4357.398227][T29216] gre: GRE over IPv4 demultiplexer driver
[ 4359.029331][T29239] ip_gre: GRE over IPv4 tunneling driver
[ 4407.540789][T29810] ip6_gre: GRE over IPv6 tunneling driver
[ 4436.255016][T30153] ping (30153) used greatest stack depth: 22192 bytes left
[ 4441.546737][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4446.603611][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4450.762626][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4455.627616][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!