[ 2191.116670][T15230] gre: GRE over IPv4 demultiplexor driver
[ 2193.171868][T15253] ip_gre: GRE over IPv4 tunneling driver
[ 2252.211167][T15825] ip6_gre: GRE over IPv6 tunneling driver
[ 2272.640252][T16024] ping (16024) used greatest stack depth: 22832 bytes left
[ 2293.249578][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2299.201493][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2304.065473][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 2309.889449][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!