[ 4419.082543][T26263] gre: GRE over IPv4 demultiplexor driver
[ 4421.194385][T26288] ip_gre: GRE over IPv4 tunneling driver
[ 4483.098287][T26860] ip6_gre: GRE over IPv6 tunneling driver
[ 4490.645338][T26921] ping (26921) used greatest stack depth: 23536 bytes left
[ 4525.471652][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4531.296573][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4536.288544][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4542.048547][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!