Ipfw fwd with route(8) RTF_BLACKHOLE and fast forwarding on FreeBSD 11

[Runer]

*Hello Community!

A situation has arisen in which ipfw fwd stops working when
RTF_BLACKHOLE or RTF_REJECT, ROUTE (8), is enabled on Freebsd 11 release.
**

FreeBSD 11.2-RELEASE-p1 route add default 127.0.0.1 -blackhole –iface 
ipfw show00100 30 4056 fwd 10.0.0.5 ip from table(1) to not 10.0.0.0/8 
in via em0 The packet counter changes, but forwarding does not work.On 
FreeBSD 10 everything works fine. I suppose this is due to changes to 
forwarding -> fast forwarding by default in FreeBSD 11 and man ROUTE 
(8), “BUGS - unless IP fast forwarding is enabled, in which case the 
meaning of the flag will always be honored.”
I want to know if it's possible to implement the work ipfw fwd together 
with RTF_BLACKHOLE on FreeBSD 11 as before in FreeBSD 10? Thank you in 
advance!

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