[ 3067.075155][T22573] gre: GRE over IPv4 demultiplexor driver
[ 3069.134532][T22597] ip_gre: GRE over IPv4 tunneling driver
[ 3128.149313][T23169] ip6_gre: GRE over IPv6 tunneling driver
[ 3169.264641][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3175.088568][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3180.080594][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3185.904571][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!