[ 3234.458402][T26270] gre: GRE over IPv4 demultiplexor driver
[ 3236.757039][T26294] ip_gre: GRE over IPv4 tunneling driver
[ 3300.876735][T26876] ip6_gre: GRE over IPv6 tunneling driver
[ 3328.118419][T27125] ping (27125) used greatest stack depth: 21568 bytes left
[ 3343.923298][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3349.811203][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3354.739243][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3360.499246][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!