[ 1572.255037][T24235] gre: GRE over IPv4 demultiplexer driver
[ 1572.779387][T24258] ip_gre: GRE over IPv4 tunneling driver
[ 1588.699771][T24829] ip6_gre: GRE over IPv6 tunneling driver
[ 1596.231244][T25174] ping (25174) used greatest stack depth: 23208 bytes left
[ 1599.105439][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1601.152409][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1603.009397][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1605.056414][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!