[ 4447.486103][T26038] gre: GRE over IPv4 demultiplexor driver [ 4449.494183][T26061] ip_gre: GRE over IPv4 tunneling driver [ 4511.434920][T26633] ip6_gre: GRE over IPv6 tunneling driver [ 4537.986060][T26882] ping (26882) used greatest stack depth: 23616 bytes left [ 4554.543436][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4560.432309][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4565.423387][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4571.695376][ C1] ip6_tunnel: tep0 xmit: Local address not yet configured!