[ 4366.898727][T20112] gre: GRE over IPv4 demultiplexor driver
[ 4368.948815][T20135] ip_gre: GRE over IPv4 tunneling driver
[ 4433.399007][T20708] ip6_gre: GRE over IPv6 tunneling driver
[ 4477.636759][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4483.844504][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4489.157457][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4495.300504][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!