[ 1513.047274][T18832] gre: GRE over IPv4 demultiplexer driver
[ 1513.562951][T18855] ip_gre: GRE over IPv4 tunneling driver
[ 1519.147902][T19108] ping (19108) used greatest stack depth: 23024 bytes left
[ 1529.559866][T19427] ip6_gre: GRE over IPv6 tunneling driver
[ 1540.057688][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1542.104639][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1543.960638][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1546.008644][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!