[ 3109.871432][T20724] gre: GRE over IPv4 demultiplexor driver
[ 3110.991665][T20748] ip_gre: GRE over IPv4 tunneling driver
[ 3146.881468][T21321] ip6_gre: GRE over IPv6 tunneling driver
[ 3160.535317][T21583] ping (21583) used greatest stack depth: 22320 bytes left
[ 3169.685992][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3173.269930][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3176.405949][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3180.054053][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!