[ 3409.107779][T28740] gre: GRE over IPv4 demultiplexor driver
[ 3410.265637][T28765] ip_gre: GRE over IPv4 tunneling driver
[ 3445.513065][T29343] ip6_gre: GRE over IPv6 tunneling driver
[ 3459.266943][T29592] ping (29592) used greatest stack depth: 22160 bytes left
[ 3468.522065][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3472.233958][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3475.433948][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3479.146036][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!