[ 1587.351175][T32318] gre: GRE over IPv4 demultiplexer driver
[ 1587.786996][T32341] ip_gre: GRE over IPv4 tunneling driver
[ 1603.585369][  T445] ip6_gre: GRE over IPv6 tunneling driver
[ 1611.119521][  T790] ping (790) used greatest stack depth: 23336 bytes left
[ 1613.961731][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1616.202632][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1618.057636][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1620.105699][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!