[ 2285.292496][T16890] gre: GRE over IPv4 demultiplexor driver [ 2287.142525][T16913] ip_gre: GRE over IPv4 tunneling driver [ 2319.872427][T17259] ping (17259) used greatest stack depth: 22816 bytes left [ 2341.819716][T17486] ip6_gre: GRE over IPv6 tunneling driver [ 2379.241840][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 2384.489750][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 2388.969716][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 2394.217722][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!