[  728.171043] gre: GRE over IPv4 demultiplexor driver
[  728.350373] ip_gre: GRE over IPv4 tunneling driver
[  728.703465] ip (3948) used greatest stack depth: 12072 bytes left
[  737.790872] ip6_gre: GRE over IPv6 tunneling driver
[  743.676762] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  745.084772] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  746.492761] ip6_tunnel: tep0 xmit: Local address not yet configured!
[  747.901739] ip6_tunnel: tep0 xmit: Local address not yet configured!