[ 4408.412332][T29260] gre: GRE over IPv4 demultiplexer driver
[ 4410.022325][T29283] ip_gre: GRE over IPv4 tunneling driver
[ 4459.886114][T29856] ip6_gre: GRE over IPv6 tunneling driver
[ 4481.073793][T30105] ping (30105) used greatest stack depth: 23440 bytes left
[ 4494.158221][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4499.151647][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4503.438106][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4508.494202][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!