[ 3171.374804][T27804] gre: GRE over IPv4 demultiplexor driver [ 3172.523065][T27827] ip_gre: GRE over IPv4 tunneling driver [ 3187.579241][T28080] ping (28080) used greatest stack depth: 23856 bytes left [ 3208.674028][T28403] ip6_gre: GRE over IPv6 tunneling driver [ 3223.636827][T28654] ping (28654) used greatest stack depth: 23568 bytes left [ 3223.966600][T31652] ip6_tunnel: tep1 xmit: Local address not yet configured! [ 3229.032937][T28748] ping (28748) used greatest stack depth: 23296 bytes left [ 3233.310462][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3237.087456][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3240.415444][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3244.254471][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured!