[ 3273.678188][T23674] gre: GRE over IPv4 demultiplexer driver
[ 3275.239121][T23697] ip_gre: GRE over IPv4 tunneling driver
[ 3323.041260][T24269] ip6_gre: GRE over IPv6 tunneling driver
[ 3347.054411][T24562] ping (24562) used greatest stack depth: 23584 bytes left
[ 3356.230267][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3361.093887][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3365.252914][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3370.180928][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!