[ 4440.353530][T26153] gre: GRE over IPv4 demultiplexor driver
[ 4442.370526][T26176] ip_gre: GRE over IPv4 tunneling driver
[ 4502.203151][T26763] ip6_gre: GRE over IPv6 tunneling driver
[ 4509.020419][T26824] ping (26824) used greatest stack depth: 23200 bytes left
[ 4542.913153][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4548.674028][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4553.473029][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4559.169072][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!