[ 4334.883005][T20062] gre: GRE over IPv4 demultiplexor driver [ 4336.945066][T20085] ip_gre: GRE over IPv4 tunneling driver [ 4363.966249][T20337] ping (20337) used greatest stack depth: 22384 bytes left [ 4398.205006][T20658] ip6_gre: GRE over IPv6 tunneling driver [ 4440.635008][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4446.585874][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4451.578879][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4457.466878][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured!