[ 1229.323348][T29951] gre: GRE over IPv4 demultiplexer driver
[ 1229.865353][T29974] ip_gre: GRE over IPv4 tunneling driver
[ 1246.421934][T30546] ip6_gre: GRE over IPv6 tunneling driver
[ 1252.316849][T30795] ping (30795) used greatest stack depth: 22512 bytes left
[ 1252.463870][  T256] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 1257.375805][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1259.423795][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1261.344792][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1263.392791][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!