[ 4440.353530][T26153] gre: GRE over IPv4 demultiplexor driver [ 4442.370526][T26176] ip_gre: GRE over IPv4 tunneling driver [ 4502.203151][T26763] ip6_gre: GRE over IPv6 tunneling driver [ 4509.020419][T26824] ping (26824) used greatest stack depth: 23200 bytes left [ 4542.913153][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4548.674028][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4553.473029][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4559.169072][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!