[ 1448.318342][T12487] gre: GRE over IPv4 demultiplexer driver
[ 1448.789554][T12510] ip_gre: GRE over IPv4 tunneling driver
[ 1464.165543][T13085] ip6_gre: GRE over IPv6 tunneling driver
[ 1470.618801][T13335] ping (13335) used greatest stack depth: 22640 bytes left
[ 1475.775303][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1477.950307][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1479.806299][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 1481.854263][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!