[ 4431.165471][T21888] gre: GRE over IPv4 demultiplexer driver
[ 4432.779448][T21912] ip_gre: GRE over IPv4 tunneling driver
[ 4481.514970][T22483] ip6_gre: GRE over IPv6 tunneling driver
[ 4501.673560][T22732] ping (22732) used greatest stack depth: 23488 bytes left
[ 4514.183568][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4519.047486][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4523.272542][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4528.136470][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!