Re: can't add a /24 blackhole route with a /32 loopback
- In reply to: Benoit Chesneau : "Re: can't add a /24 blackhole route with a /32 loopback"
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Date: Wed, 14 Jun 2023 10:21:12 UTC
disreguard the part containing ``` # route -n get 1.1.1.1/32 route to: 1.1.1.1 destination: 1.1.1.1 gateway: 10.3.1.2 fib: 0 interface: vlan212 flags: <UP,GATEWAY,HOST,DONE,PROTO1> recvpipe sendpipe ssthresh rtt,msec mtu weight expire 0 0 0 0 9000 1 0 ``` It was actually a bad edit and should have been 1.1.1.2 there. This specific route is created dynamically with bird. Benoît Chesneau, Enki Multimedia — t. +33608655490 Sent with Proton Mail secure email. ------- Original Message ------- On Wednesday, June 14th, 2023 at 12:18, Benoit Chesneau <benoitc@enki-multimedia.eu> wrote: > > ------- Original Message ------- > On Wednesday, June 14th, 2023 at 11:56, Alexander Chernikov melifaro@FreeBSD.org wrote: > > > Could you try: > > 1) removing the 1.1.1.0/24 route > > 2) removing the 1.1.1.1/32 from the lo1 > > 3) provide the output for `route -n get 1.1.1.0/24` > > 4) provide the output for `route -n get 1.1.1.1/32` > > 5) assign 1.1.1.1/32 to lo1 > > 6) provide the output for `route -n get 1.1.1.0/24` > > 7) provide the output for `route -n get 1.1.1.1/32` > > 8) provide the output for `route add -net 1.1.1.0/24 -blackhole` > > > Find the result below. Such thing worked on another machine, I am not sure why. No obvious logs. > > ``` > # route -n get 1.1.1.0/24 > route to: 1.1.1.0 > destination: 1.1.1.0 > mask: 255.255.255.0 > fib: 0 > interface: lo1 > flags: <UP,DONE,STATIC> > > recvpipe sendpipe ssthresh rtt,msec mtu weight expire > 0 0 0 0 16384 1 0 > # route -n get 1.1.1.1/32 > route to: 1.1.1.1 > destination: 1.1.1.1 > gateway: 10.3.1.2 > fib: 0 > interface: vlan212 > flags: <UP,GATEWAY,HOST,DONE,PROTO1> > > recvpipe sendpipe ssthresh rtt,msec mtu weight expire > 0 0 0 0 9000 1 0 > # route delete 1.1.1.0/24 > delete net 1.1.1.0 > # route -n get 1.1.1.1/32 > route: route has not been found > # ifconfig lo1 inet 1.1.1.1/32 > # route -n get 1.1.1.1/32 > route to: 1.1.1.1 > destination: 1.1.1.1 > fib: 0 > interface: lo1 > flags: <UP,HOST,DONE,PINNED> > > recvpipe sendpipe ssthresh rtt,msec mtu weight expire > 0 0 0 0 16384 1 0 > # route add -net 1.1.1.0/24 -blackhole > route: writing to routing socket: Operation not supported > add net 1.1.1.0 fib 0: Operation not supported > # route -n get 1.1.1.0/24 > route: route has not been found > ```