[ 3137.538279][T26408] gre: GRE over IPv4 demultiplexor driver
[ 3138.757720][T26432] ip_gre: GRE over IPv4 tunneling driver
[ 3174.785093][T27007] ip6_gre: GRE over IPv6 tunneling driver
[ 3192.413284][T20053] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3199.195168][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3202.907198][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3206.107171][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3209.883164][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!