[ 4372.519382][T21489] gre: GRE over IPv4 demultiplexor driver
[ 4374.624652][T21512] ip_gre: GRE over IPv4 tunneling driver
[ 4437.004027][T22084] ip6_gre: GRE over IPv6 tunneling driver
[ 4480.057934][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4486.072902][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4491.192884][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4497.529873][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!