[ 4028.222308][T24588] gre: GRE over IPv4 demultiplexor driver
[ 4030.283656][T24612] ip_gre: GRE over IPv4 tunneling driver
[ 4092.088455][T25185] ip6_gre: GRE over IPv6 tunneling driver
[ 4119.285435][T25434] ping (25434) used greatest stack depth: 22896 bytes left
[ 4135.024359][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4140.848299][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4145.840269][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4151.665265][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!