[ 4484.354739][T26100] gre: GRE over IPv4 demultiplexor driver
[ 4486.446869][T26123] ip_gre: GRE over IPv4 tunneling driver
[ 4494.035743][T26187] ping (26187) used greatest stack depth: 23352 bytes left
[ 4513.828142][T26375] ping (26375) used greatest stack depth: 22624 bytes left
[ 4547.960019][T26703] ip6_gre: GRE over IPv6 tunneling driver
[ 4590.054315][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4595.878011][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4600.806014][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4606.631003][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!