IPv6 link-local address with scope

[Ondrej Zajicek]

On Sun, Oct 11, 2020 at 12:37:32AM +0800, Wang Shanker wrote:
> Hi, all
> 
> I encountered a problem when trying to configure a static IPv6 route the nexthop of which is a link-local address. 
> 
> ```
> protocol static {
>   route 2001:db8:1::/48 via fe80::1234%foo;
> }
> ```
> 
> The above configuration worked well for routing traffic to 2001:db8:1::/48 to the router fe80::1234 at the interface named foo. However, if the name of the interface contains special characters, for example, `foo-bar`, bird will complain about the syntax. 
> 
> I dig into the source code and found out that in https://gitlab.nic.cz/labs/bird/-/blob/legacy/conf/confbase.Y#L162-165, `ipa_scope` is defined like `%[SYM]`, so in above scenario, the address shall be expressed as `fe80::1234%'foo-bar'`. 
> 
> I believe it could be better to have a record of this in user's doc. 

Hi

(Noticed while looking for some missed / forgotten e-mails)

Added to example in:

https://gitlab.nic.cz/labs/bird/-/commit/a141959f0729b2381a90aaa9b7ed0e41a5f9513e

-- 
Elen sila lumenn' omentielvo

Ondrej 'Santiago' Zajicek (email: santiago at crfreenet.org)
OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net)
"To err is human -- to blame it on a computer is even more so."
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 195 bytes
Desc: not available
URL: <http://trubka.network.cz/pipermail/bird-users/attachments/20210114/2c93b70d/attachment.sig>