[ 1546.782305][T17474] gre: GRE over IPv4 demultiplexer driver
[ 1547.374082][T17504] ip_gre: GRE over IPv4 tunneling driver
[ 1563.409150][T18077] ip6_gre: GRE over IPv6 tunneling driver
[ 1568.962860][T18326] ping (18326) used greatest stack depth: 23072 bytes left
[ 1573.829980][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1575.813957][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1577.668955][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1579.716961][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!