[ 3423.445672][T28719] gre: GRE over IPv4 demultiplexor driver
[ 3424.632662][T28742] ip_gre: GRE over IPv4 tunneling driver
[ 3460.334721][T29315] ip6_gre: GRE over IPv6 tunneling driver
[ 3484.609511][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3488.450440][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3491.713452][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3495.425449][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3582.055420][T31271] ping (31271) used greatest stack depth: 23296 bytes left