[ 4448.180817][T26074] gre: GRE over IPv4 demultiplexor driver
[ 4450.181970][T26097] ip_gre: GRE over IPv4 tunneling driver
[ 4511.466943][T26672] ip6_gre: GRE over IPv6 tunneling driver
[ 4538.417194][T26921] ping (26921) used greatest stack depth: 23616 bytes left
[ 4554.545223][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4560.497090][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4565.553160][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4571.505091][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!