[ 4333.398653][T29247] gre: GRE over IPv4 demultiplexer driver
[ 4334.964352][T29270] ip_gre: GRE over IPv4 tunneling driver
[ 4381.970245][T29843] ip6_gre: GRE over IPv6 tunneling driver
[ 4410.559989][T30186] ping (30186) used greatest stack depth: 23104 bytes left
[ 4415.744968][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4420.737871][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4424.896833][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4429.761841][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!