[ 3145.558312][T27797] gre: GRE over IPv4 demultiplexor driver [ 3146.721385][T27820] ip_gre: GRE over IPv4 tunneling driver [ 3183.433775][T28398] ip6_gre: GRE over IPv6 tunneling driver [ 3198.853922][T28648] ping (28648) used greatest stack depth: 23312 bytes left [ 3208.371635][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3212.084529][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3215.284523][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 3219.059542][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!