[ 4720.042708][T24786] gre: GRE over IPv4 demultiplexor driver
[ 4722.303342][T24809] ip_gre: GRE over IPv4 tunneling driver
[ 4762.360190][T25156] ping (25156) used greatest stack depth: 22592 bytes left
[ 4788.900494][T25383] ip6_gre: GRE over IPv6 tunneling driver
[ 4836.402599][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4842.929533][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4848.433510][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4854.897532][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!