[ 4688.946373][T24727] gre: GRE over IPv4 demultiplexor driver
[ 4691.224904][T24750] ip_gre: GRE over IPv4 tunneling driver
[ 4756.579750][T25323] ip6_gre: GRE over IPv6 tunneling driver
[ 4764.249035][T25384] ping (25384) used greatest stack depth: 23392 bytes left
[ 4802.314579][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4808.842498][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4814.154493][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4820.363508][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!