[ 1569.462480][T28399] gre: GRE over IPv4 demultiplexer driver
[ 1569.969313][T28422] ip_gre: GRE over IPv4 tunneling driver
[ 1578.071760][T28769] ping (28769) used greatest stack depth: 23872 bytes left
[ 1586.814306][T28994] ip6_gre: GRE over IPv6 tunneling driver
[ 1591.616789][T29194] ping (29194) used greatest stack depth: 23768 bytes left
[ 1592.784592][T29244] ping (29244) used greatest stack depth: 23176 bytes left
[ 1597.898036][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1600.010962][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1601.929977][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1604.041975][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1609.646663][T29812] ping (29812) used greatest stack depth: 22608 bytes left