[ 4726.537130][T25498] gre: GRE over IPv4 demultiplexor driver
[ 4728.760046][T25521] ip_gre: GRE over IPv4 tunneling driver
[ 4736.543977][T25585] ping (25585) used greatest stack depth: 23520 bytes left
[ 4798.996421][T26093] ip6_gre: GRE over IPv6 tunneling driver
[ 4844.457406][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4850.665314][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4855.913308][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4862.442343][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 5022.233244][T28008] ping (28008) used greatest stack depth: 23344 bytes left