[ 4399.560085][T29131] gre: GRE over IPv4 demultiplexer driver
[ 4401.159161][T29154] ip_gre: GRE over IPv4 tunneling driver
[ 4450.844915][T29726] ip6_gre: GRE over IPv6 tunneling driver
[ 4467.477257][T29926] ping (29926) used greatest stack depth: 23120 bytes left
[ 4484.188768][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4489.052712][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.276712][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4498.140690][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!