[ 1515.414762][T18435] gre: GRE over IPv4 demultiplexer driver
[ 1515.826460][T18458] ip_gre: GRE over IPv4 tunneling driver
[ 1520.815098][T18710] ping (18710) used greatest stack depth: 23552 bytes left
[ 1530.539239][T19029] ip6_gre: GRE over IPv6 tunneling driver
[ 1534.613509][T19228] ping (19228) used greatest stack depth: 23152 bytes left
[ 1540.160996][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.080962][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1543.872949][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1545.792963][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!