[ 3988.177146][T24609] gre: GRE over IPv4 demultiplexor driver [ 3990.325288][T24633] ip_gre: GRE over IPv4 tunneling driver [ 4020.532389][T24930] ping (24930) used greatest stack depth: 23488 bytes left [ 4050.194414][T25207] ip6_gre: GRE over IPv6 tunneling driver [ 4081.364092][T25500] ping (25500) used greatest stack depth: 22400 bytes left [ 4092.467596][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4098.483542][ C2] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4103.539533][ C0] ip6_tunnel: tep0 xmit: Local address not yet configured! [ 4109.427548][ C3] ip6_tunnel: tep0 xmit: Local address not yet configured!