How to interpret `!` in show route when a route was successfully inserted into the kernel table?

[Ivan Kurnosov]

Right, I found the reason:

```
2024-04-22 04:05:59.569 <ERR> KRT: Received route 10.240.2.0/24 with
strange next-hop 10.50.0.1
2024-04-22 04:05:59.569 <ERR> KRT: Received route 10.240.224.2/32 with
strange next-hop 10.50.0.1
```

it happens because there is no "explicit" route to the next hop but the
"device route". And in the current version of the OS I'm running `bird
2.15` that support specifying both next hop and device is not available
yet. So I will be doomed to run it like that for another couple years.

Would it not hurt otherwise to run it? (assuming I can live with sub
optimal `! (100/?)` output).

Thank you!

On Mon, 22 Apr 2024 at 14:47, Ivan Kurnosov <zerkms at zerkms.com> wrote:

> Hi team,
>
> can somebody please help interpret the following output:
>
> ```
> 10.50.0.1/32         unicast [static1 02:16:07.523] * (200)
>         dev xfrm-40
> 10.240.224.2/32      unicast [hq 02:27:17.417] ! (100/?) [AS65020i]
>         via 10.50.0.1 on xfrm-40
> 10.240.2.0/24        unicast [hq 02:27:17.417] ! (100/?) [AS65020i]
>         via 10.50.0.1 on xfrm-40
> ```
>
> The current (birdc) machine establishes an ipsec tunnel and 10.50.0.1 is a
> firewall on the other side of the ipsec tunnel.
>
> And kernel routes look like
>
> ```
> 10.50.0.1 dev xfrm-40 proto bird scope link src 10.80.1.76 metric 32
> 10.240.2.0/24 via 10.50.0.1 dev xfrm-40 proto bird metric 32
> 10.240.224.2 via 10.50.0.1 dev xfrm-40 proto bird metric 32
> ```
>
> So, technically all works: packets flow as expected. It's only the `!`
> exclamation mark and `(100/?)` question mark that I cannot interpret.
>
> Is it something I should worry about?
>
> --
> With best regards, Ivan Kurnosov
>


-- 
With best regards, Ivan Kurnosov
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