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BIRD: Added filters section

This commit is contained in:
Tristan B. Velloza Kildaire 2022-12-06 10:41:52 +02:00
parent 19d7538784
commit 8984c4925b
1 changed files with 14 additions and 0 deletions
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docs/routing/bird/bird.md
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@ -76,6 +76,20 @@ ipv6 table crxn;
You can choose any name for the table you want but you will just need to remember it such that you can refer to it later when it is needed.
### Filters
We need to define a filter which will be used to filter out any incorrect routes we want to advertise _to_ the network but also prevents any incorrect routes that are being propagated _from_ any misconfigured BIRD instances on the network:
```
filter crxnFilter
{
if (net ~ fd00::/8) then accept;
reject;
}
```
TODO: Add a check about not installing RTD_UNREACHABLEs which babel will generate sometimes and which BIRD reportedly has undefined behaviour with
---
Old stuff below WIP):