[ 3204.995842][T27794] gre: GRE over IPv4 demultiplexor driver
[ 3206.146839][T27817] ip_gre: GRE over IPv4 tunneling driver
[ 3241.449002][T28389] ip6_gre: GRE over IPv6 tunneling driver
[ 3242.827491][T26813] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3248.140450][T20317] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3253.114920][T28588] ping (28588) used greatest stack depth: 22672 bytes left
[ 3265.548359][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3269.323361][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3272.587342][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3276.299386][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!