[ 4749.151031][T24642] gre: GRE over IPv4 demultiplexor driver
[ 4751.343205][T24665] ip_gre: GRE over IPv4 tunneling driver
[ 4817.289882][T25239] ip6_gre: GRE over IPv6 tunneling driver
[ 4825.178078][T25300] ping (25300) used greatest stack depth: 23064 bytes left
[ 4863.158395][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4869.430350][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4874.871289][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4881.206294][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!