[ 3981.415351][T24603] gre: GRE over IPv4 demultiplexor driver
[ 3983.466063][T24627] ip_gre: GRE over IPv4 tunneling driver
[ 4044.133931][T25205] ip6_gre: GRE over IPv6 tunneling driver
[ 4085.717910][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4091.541805][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4096.405793][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4102.294789][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!