[ 1608.714887][ T1844] gre: GRE over IPv4 demultiplexer driver
[ 1609.122538][ T1867] ip_gre: GRE over IPv4 tunneling driver
[ 1624.639794][ T2444] ip6_gre: GRE over IPv6 tunneling driver
[ 1630.072437][ T2693] ping (2693) used greatest stack depth: 23320 bytes left
[ 1634.972096][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1636.955064][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1638.748067][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1640.732074][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!