[ 4067.208136][T28733] gre: GRE over IPv4 demultiplexer driver
[ 4068.813747][T28756] ip_gre: GRE over IPv4 tunneling driver
[ 4097.224272][T29104] ping (29104) used greatest stack depth: 23440 bytes left
[ 4117.592848][T29329] ip6_gre: GRE over IPv6 tunneling driver
[ 4145.783062][T29673] ping (29673) used greatest stack depth: 22928 bytes left
[ 4150.898744][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4155.826643][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4160.050622][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4164.914641][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!