[ 4684.348253][T24650] gre: GRE over IPv4 demultiplexor driver [ 4686.474522][T24673] ip_gre: GRE over IPv4 tunneling driver [ 4724.146364][T25027] ping (25027) used greatest stack depth: 22352 bytes left [ 4749.874200][T25253] ip6_gre: GRE over IPv6 tunneling driver [ 4794.635728][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4800.843653][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4805.964630][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4812.171648][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!