[ 4289.775417][T29248] gre: GRE over IPv4 demultiplexer driver
[ 4291.367629][T29271] ip_gre: GRE over IPv4 tunneling driver
[ 4341.617843][T29842] ip6_gre: GRE over IPv6 tunneling driver
[ 4363.881101][T30091] ping (30091) used greatest stack depth: 22848 bytes left
[ 4377.406747][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4382.398639][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4386.557646][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4391.421701][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!