[ 4403.907751][T29181] gre: GRE over IPv4 demultiplexer driver
[ 4405.548826][T29204] ip_gre: GRE over IPv4 tunneling driver
[ 4454.709666][T29783] ip6_gre: GRE over IPv6 tunneling driver
[ 4488.604358][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.596149][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4497.884136][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4502.877152][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4575.276513][T31173] ping (31173) used greatest stack depth: 22848 bytes left