[ 4421.612187][T29206] gre: GRE over IPv4 demultiplexer driver
[ 4423.262128][T29229] ip_gre: GRE over IPv4 tunneling driver
[ 4472.624491][T29800] ip6_gre: GRE over IPv6 tunneling driver
[ 4501.457623][T30143] ping (30143) used greatest stack depth: 23440 bytes left
[ 4506.699257][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4511.627204][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4515.978212][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4520.906224][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!