[ 4483.163865][T25859] gre: GRE over IPv4 demultiplexor driver
[ 4485.252535][T25882] ip_gre: GRE over IPv4 tunneling driver
[ 4508.113757][T26085] ping (26085) used greatest stack depth: 22992 bytes left
[ 4548.930118][T26454] ip6_gre: GRE over IPv6 tunneling driver
[ 4593.127724][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4599.271560][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4604.520594][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4610.727579][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!