[ 4374.557416][T29238] gre: GRE over IPv4 demultiplexer driver
[ 4376.211306][T29261] ip_gre: GRE over IPv4 tunneling driver
[ 4426.625660][T29833] ip6_gre: GRE over IPv6 tunneling driver
[ 4447.841688][T30082] ping (30082) used greatest stack depth: 23440 bytes left
[ 4460.692963][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4465.684894][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4469.907907][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4475.027906][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!