Nullroute (blackhole/unreachable)

Derek Atkins derek at ihtfp.com
Thu Apr 18 11:57:46 UTC 2024


Can't you just add static routes to the network configuration?

-derek

On Thu, April 18, 2024 7:09 am, Marco Moock wrote:
> Hello!
>
> In some circumstances it is necessary to route a net to /dev/null
> (called Null0 on Cisco). This can result in an ICMP unreachable message.
>
> e.g.
> ip route add unreachable 2001:db8::/56 #gives ICMP no route to dest
> ip route add blackhole 2001:db8::/56 #silently discards packet
>
> Is there any way to configure that within NM?
>
> --
> kind regards
> Marco Moock
>


-- 
       Derek Atkins                 617-623-3745
       derek at ihtfp.com             www.ihtfp.com
       Computer and Internet Security Consultant



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