[ 4300.439291][T29288] gre: GRE over IPv4 demultiplexer driver
[ 4302.029517][T29311] ip_gre: GRE over IPv4 tunneling driver
[ 4349.702008][T29883] ip6_gre: GRE over IPv6 tunneling driver
[ 4377.348291][T30227] ping (30227) used greatest stack depth: 23488 bytes left
[ 4382.355540][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4387.219494][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4391.379467][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4396.114489][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!