[ 4303.528741][T20091] gre: GRE over IPv4 demultiplexor driver [ 4305.515445][T20114] ip_gre: GRE over IPv4 tunneling driver [ 4368.015383][T20695] ip6_gre: GRE over IPv6 tunneling driver [ 4394.715673][T20945] ping (20945) used greatest stack depth: 21584 bytes left [ 4410.419885][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4416.499852][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4421.620791][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4427.571786][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured!