[ 3189.467102][T23670] gre: GRE over IPv4 demultiplexer driver
[ 3191.091304][T23693] ip_gre: GRE over IPv4 tunneling driver
[ 3240.037902][T24264] ip6_gre: GRE over IPv6 tunneling driver
[ 3256.685776][T24465] ping (24465) used greatest stack depth: 23616 bytes left
[ 3273.594391][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3278.459299][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3282.682374][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3287.546325][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3365.590646][T25748] ping (25748) used greatest stack depth: 23328 bytes left