[ 4272.675336][T20225] gre: GRE over IPv4 demultiplexor driver
[ 4274.655938][T20249] ip_gre: GRE over IPv4 tunneling driver
[ 4337.448826][T20825] ip6_gre: GRE over IPv6 tunneling driver
[ 4364.181757][T21074] ping (21074) used greatest stack depth: 21584 bytes left
[ 4379.906629][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4385.922543][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4390.978514][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4396.993570][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!