[ 4424.268188][T26176] gre: GRE over IPv4 demultiplexor driver
[ 4426.340262][T26199] ip_gre: GRE over IPv4 tunneling driver
[ 4486.641207][T26772] ip6_gre: GRE over IPv6 tunneling driver
[ 4523.014524][T27123] ping (27123) used greatest stack depth: 21600 bytes left
[ 4528.960200][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4534.913141][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4539.840132][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4545.664150][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!