[ 4390.561996][T29189] gre: GRE over IPv4 demultiplexer driver
[ 4392.188882][T29212] ip_gre: GRE over IPv4 tunneling driver
[ 4440.413934][T29784] ip6_gre: GRE over IPv6 tunneling driver
[ 4460.946690][T30035] ping (30035) used greatest stack depth: 23440 bytes left
[ 4473.825821][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4478.752753][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4482.976733][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4487.841735][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4509.827524][T30601] ping (30601) used greatest stack depth: 23264 bytes left