[ 3406.759510][T28698] gre: GRE over IPv4 demultiplexor driver
[ 3407.932174][T28721] ip_gre: GRE over IPv4 tunneling driver
[ 3443.462974][T29300] ip6_gre: GRE over IPv6 tunneling driver
[ 3460.476804][T29594] ping (29594) used greatest stack depth: 22432 bytes left
[ 3460.788409][T12520] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3467.636146][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3471.412151][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3474.613127][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3478.325164][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!