[ 4454.281529][T26006] gre: GRE over IPv4 demultiplexor driver
[ 4457.176006][T26029] ip_gre: GRE over IPv4 tunneling driver
[ 4525.816108][T26601] ip6_gre: GRE over IPv6 tunneling driver
[ 4551.778585][T26852] ping (26852) used greatest stack depth: 23616 bytes left
[ 4567.038485][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4572.926396][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4577.982412][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4583.806429][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!