[ 4382.008816][T29144] gre: GRE over IPv4 demultiplexer driver
[ 4383.662706][T29167] ip_gre: GRE over IPv4 tunneling driver
[ 4433.106190][T29743] ip6_gre: GRE over IPv6 tunneling driver
[ 4454.135560][T29993] ping (29993) used greatest stack depth: 22864 bytes left
[ 4467.023337][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4472.014244][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4476.239261][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4481.166225][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!