[ 3066.338824][T25985] gre: GRE over IPv4 demultiplexer driver
[ 3067.972767][T26008] ip_gre: GRE over IPv4 tunneling driver
[ 3116.257863][T26581] ip6_gre: GRE over IPv6 tunneling driver
[ 3144.727234][T26924] ping (26924) used greatest stack depth: 23552 bytes left
[ 3149.824728][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3154.689598][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3158.912640][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3163.777614][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3241.501907][T28059] ping (28059) used greatest stack depth: 23280 bytes left