[ 3177.566250][T22577] gre: GRE over IPv4 demultiplexor driver
[ 3179.612728][T22601] ip_gre: GRE over IPv4 tunneling driver
[ 3239.811611][T23176] ip6_gre: GRE over IPv6 tunneling driver
[ 3281.779337][    C1] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3287.667270][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3292.658326][    C2] ip6_tunnel: tep0 xmit: Local address not yet configured!
[ 3298.482291][    C3] ip6_tunnel: tep0 xmit: Local address not yet configured!