[ 4793.721124][T24738] gre: GRE over IPv4 demultiplexor driver
[ 4795.818021][T24761] ip_gre: GRE over IPv4 tunneling driver
[ 4796.042880][T24768] ip (24768) used greatest stack depth: 23472 bytes left
[ 4859.469376][T25334] ip6_gre: GRE over IPv6 tunneling driver
[ 4905.223402][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4911.496322][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4916.744309][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4923.080349][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 5149.054824][T27855] ping (27855) used greatest stack depth: 22000 bytes left