[ 4375.436125][T29198] gre: GRE over IPv4 demultiplexer driver
[ 4377.092227][T29221] ip_gre: GRE over IPv4 tunneling driver
[ 4425.949353][T29793] ip6_gre: GRE over IPv6 tunneling driver
[ 4450.651544][T30093] ping (30093) used greatest stack depth: 23120 bytes left
[ 4460.051812][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4464.979728][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4469.203748][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4474.387770][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!