[ 3171.223162][T23669] gre: GRE over IPv4 demultiplexer driver
[ 3172.795531][T23692] ip_gre: GRE over IPv4 tunneling driver
[ 3219.986717][T24263] ip6_gre: GRE over IPv6 tunneling driver
[ 3252.481577][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3257.344465][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3261.569461][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3266.561492][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!