[ 4376.439353][T29127] gre: GRE over IPv4 demultiplexer driver
[ 4378.159436][T29150] ip_gre: GRE over IPv4 tunneling driver
[ 4428.550689][T29721] ip6_gre: GRE over IPv6 tunneling driver
[ 4458.122792][T30071] ping (30071) used greatest stack depth: 22928 bytes left
[ 4463.400808][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4468.456657][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4472.808666][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4477.864678][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!