[ 4215.073951][T21334] gre: GRE over IPv4 demultiplexor driver
[ 4216.664636][T21357] ip_gre: GRE over IPv4 tunneling driver
[ 4264.530725][T21932] ip6_gre: GRE over IPv6 tunneling driver
[ 4285.133729][T22181] ping (22181) used greatest stack depth: 22928 bytes left
[ 4298.161709][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4303.025585][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4307.249570][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4312.113579][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!