[ 4787.779668][T24399] gre: GRE over IPv4 demultiplexor driver
[ 4790.032929][T24422] ip_gre: GRE over IPv4 tunneling driver
[ 4857.159013][T24996] ip6_gre: GRE over IPv6 tunneling driver
[ 4886.876212][T25246] ping (25246) used greatest stack depth: 21840 bytes left
[ 4904.930443][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4912.290415][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4918.114377][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4924.578377][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!