[ 4395.970828][T22421] gre: GRE over IPv4 demultiplexor driver
[ 4398.017694][T22444] ip_gre: GRE over IPv4 tunneling driver
[ 4459.804095][T23021] ip6_gre: GRE over IPv6 tunneling driver
[ 4503.541638][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4509.556557][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4514.868578][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4521.012569][    C0] ip6_tunnel: tep0 xmit: Local address not yet configured!