[ 4364.076977][T29212] gre: GRE over IPv4 demultiplexer driver
[ 4365.708566][T29235] ip_gre: GRE over IPv4 tunneling driver
[ 4415.410023][T29806] ip6_gre: GRE over IPv6 tunneling driver
[ 4436.470814][T30056] ping (30056) used greatest stack depth: 23440 bytes left
[ 4449.423360][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4454.414279][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4458.766259][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4463.758260][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4535.700543][T31204] ping (31204) used greatest stack depth: 23136 bytes left