[ 4325.346394][T28752] gre: GRE over IPv4 demultiplexer driver
[ 4327.075420][T28775] ip_gre: GRE over IPv4 tunneling driver
[ 4376.666103][T29348] ip6_gre: GRE over IPv6 tunneling driver
[ 4410.911781][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4415.967681][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4420.383640][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4425.440703][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!