[ 4340.254001][T20057] gre: GRE over IPv4 demultiplexor driver
[ 4342.420907][T20080] ip_gre: GRE over IPv4 tunneling driver
[ 4404.759438][T20651] ip6_gre: GRE over IPv6 tunneling driver
[ 4449.446331][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4455.590236][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4460.710218][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4466.854256][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!