[ds6] Re: (usagi-users 03345) Bind on an AF_INET6 socket issue

[Rémi Denis-Courmont]

Le Lundi 9 Mai 2005 18:49, Bellino, Phil a écrit :
> When I do a bind on these addresses, the "fe80::2a0:9cff:fe00:436"
> always fails to bind with the bind error of  "ENODEV".
>
> I do remember reading somewhere on the web that a bind can not be
> done on a Link-Local address.
>
> Does anyone know if this is true and if so, what is the explanation
> behind it?

To bind to link-local scoped address, you must specify the interface in 
the socket address.

They are two easy way to achieve that, either :

addr.sin6_scope_id = if_nametoindex("eth0");

or get the socket address from getaddrinfo() and specify 
"fe80::2a0:9cff:fe00:436%eth0" as hostname.

-- 
Rémi Denis-Courmont
http://www.simphalempin.com/home/
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