[ 4325.918001][T20277] gre: GRE over IPv4 demultiplexor driver
[ 4327.937805][T20300] ip_gre: GRE over IPv4 tunneling driver
[ 4388.898623][T20874] ip6_gre: GRE over IPv6 tunneling driver
[ 4431.144787][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4437.032705][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4442.152698][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4448.169687][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!