[ 1462.353064][T18854] gre: GRE over IPv4 demultiplexer driver
[ 1462.783228][T18877] ip_gre: GRE over IPv4 tunneling driver
[ 1478.514853][T19456] ip6_gre: GRE over IPv6 tunneling driver
[ 1485.766340][T19799] ping (19799) used greatest stack depth: 23344 bytes left
[ 1488.635788][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1490.682755][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1492.475751][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1494.523765][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1517.063680][T20930] ping (20930) used greatest stack depth: 23120 bytes left