[ 3155.300673][T25067] gre: GRE over IPv4 demultiplexer driver
[ 3156.916510][T25090] ip_gre: GRE over IPv4 tunneling driver
[ 3205.616635][T25662] ip6_gre: GRE over IPv6 tunneling driver
[ 3225.993486][T25911] ping (25911) used greatest stack depth: 23008 bytes left
[ 3238.537058][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3243.336983][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3247.496971][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3252.424965][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!