[ 4463.158852][T25815] gre: GRE over IPv4 demultiplexor driver
[ 4465.209286][T25838] ip_gre: GRE over IPv4 tunneling driver
[ 4501.603856][T26185] ping (26185) used greatest stack depth: 22896 bytes left
[ 4526.726157][T26411] ip6_gre: GRE over IPv6 tunneling driver
[ 4569.908635][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4575.859558][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4580.915550][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4586.867550][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!