[ 4200.137785][T29103] gre: GRE over IPv4 demultiplexer driver
[ 4201.800247][T29126] ip_gre: GRE over IPv4 tunneling driver
[ 4250.060510][T29697] ip6_gre: GRE over IPv6 tunneling driver
[ 4283.065222][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4287.994123][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4292.282108][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4297.210131][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4374.857676][T31171] ping (31171) used greatest stack depth: 22768 bytes left