Re: can't add a /24 blackhole route with a /32 loopback
- Reply: Benoit Chesneau : "Re: can't add a /24 blackhole route with a /32 loopback"
- Reply: Benoit Chesneau : "Re: can't add a /24 blackhole route with a /32 loopback"
- In reply to: Alexander Chernikov : "Re: can't add a /24 blackhole route with a /32 loopback"
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Date: Wed, 14 Jun 2023 10:18:37 UTC
------- 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 ```