At your request Eugen, I fill in the Problem Report:

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=231143


03.09.2018 12:33, Eugene Grosbein пишет:
03.09.2018 14:02, Runer wrote:

*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!

***
Can you fill a Problem Report using 
https://bugs.freebsd.org/bugzilla/enter_bug.cgi please?
And drop me PR's number in reply.



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