[ 1477.441809][T27821] gre: GRE over IPv4 demultiplexer driver
[ 1477.953407][T27844] ip_gre: GRE over IPv4 tunneling driver
[ 1494.127691][T28416] ip6_gre: GRE over IPv6 tunneling driver
[ 1499.754506][T28665] ping (28665) used greatest stack depth: 23808 bytes left
[ 1504.717700][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1506.701651][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1508.558654][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1510.605705][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1534.030968][T29891] ping (29891) used greatest stack depth: 23600 bytes left