[ 4347.646956][T20167] gre: GRE over IPv4 demultiplexor driver
[ 4349.823887][T20191] ip_gre: GRE over IPv4 tunneling driver
[ 4416.388669][T20764] ip6_gre: GRE over IPv6 tunneling driver
[ 4463.216994][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4469.936533][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4475.248480][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 4481.585528][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!