[ 4630.270761][T23342] gre: GRE over IPv4 demultiplexor driver
[ 4632.571077][T23365] ip_gre: GRE over IPv4 tunneling driver
[ 4698.264898][T23937] ip6_gre: GRE over IPv6 tunneling driver
[ 4732.025434][T24230] ping (24230) used greatest stack depth: 22328 bytes left
[ 4744.213431][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4750.614345][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4755.862330][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4762.326360][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!