[ 3173.646289][T23668] gre: GRE over IPv4 demultiplexer driver
[ 3175.270988][T23691] ip_gre: GRE over IPv4 tunneling driver
[ 3223.716243][T24269] ip6_gre: GRE over IPv6 tunneling driver
[ 3251.621326][T24614] ping (24614) used greatest stack depth: 23648 bytes left
[ 3256.832775][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3261.696676][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3265.792666][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3270.719687][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!