[ 4413.547273][T26352] gre: GRE over IPv4 demultiplexor driver
[ 4415.760085][T26382] ip_gre: GRE over IPv4 tunneling driver
[ 4476.789449][T26953] ip6_gre: GRE over IPv6 tunneling driver
[ 4519.759527][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4525.646423][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4530.638439][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4536.591426][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4629.823077][T28397] ping (28397) used greatest stack depth: 22672 bytes left