[ 1453.185557][T19604] gre: GRE over IPv4 demultiplexer driver
[ 1453.684179][T19627] ip_gre: GRE over IPv4 tunneling driver
[ 1469.456679][T20198] ip6_gre: GRE over IPv6 tunneling driver
[ 1479.903273][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1481.887232][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1483.743231][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1485.727239][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1506.749244][T21577] ping (21577) used greatest stack depth: 23504 bytes left