[ 3222.183263][T28960] gre: GRE over IPv4 demultiplexor driver
[ 3223.332579][T28983] ip_gre: GRE over IPv4 tunneling driver
[ 3258.976636][T29555] ip6_gre: GRE over IPv6 tunneling driver
[ 3260.326747][T26221] ip6_tunnel: tep1 xmit: Local address not yet configured!
[ 3282.790311][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3286.502307][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3289.702300][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3293.415316][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!