[ 4376.355967][T22391] gre: GRE over IPv4 demultiplexor driver
[ 4378.516644][T22414] ip_gre: GRE over IPv4 tunneling driver
[ 4439.311294][T22987] ip6_gre: GRE over IPv6 tunneling driver
[ 4482.159818][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4488.048698][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4493.168708][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4499.184698][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!