[ 4430.476598][T28640] gre: GRE over IPv4 demultiplexer driver
[ 4432.263251][T28663] ip_gre: GRE over IPv4 tunneling driver
[ 4484.479878][T29235] ip6_gre: GRE over IPv6 tunneling driver
[ 4526.060423][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4532.779986][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4538.284065][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4544.235965][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!