[ 4441.776151][T26166] gre: GRE over IPv4 demultiplexor driver
[ 4443.860334][T26190] ip_gre: GRE over IPv4 tunneling driver
[ 4505.011012][T26764] ip6_gre: GRE over IPv6 tunneling driver
[ 4541.862758][T27112] ping (27112) used greatest stack depth: 21824 bytes left
[ 4547.833941][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4553.721864][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4558.777837][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4564.601886][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!