[ 4836.667457][T20317] gre: GRE over IPv4 demultiplexer driver
[ 4838.364193][T20340] ip_gre: GRE over IPv4 tunneling driver
[ 4887.823586][T20912] ip6_gre: GRE over IPv6 tunneling driver
[ 4909.204317][T21162] ping (21162) used greatest stack depth: 22864 bytes left
[ 4922.347746][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4927.275681][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4931.563654][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4936.555670][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!