[ 4379.960680][T22368] gre: GRE over IPv4 demultiplexor driver
[ 4382.134829][T22391] ip_gre: GRE over IPv4 tunneling driver
[ 4408.359721][T22644] ping (22644) used greatest stack depth: 22200 bytes left
[ 4442.183246][T22964] ip6_gre: GRE over IPv6 tunneling driver
[ 4485.380394][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4491.333273][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4496.388280][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4502.277266][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!