[ds6-devel] problem connecting to ipv6 sockets

[Lionel Elie Mamane]

On Tue, Jan 06, 2004 at 02:33:00PM +0800, Parijat wrote:
> On Mon, Jan 05, 2004 at 03:04:12PM +0100, Andreas Hofmann wrote:

>> ip6client local6					---> does not work
>> ip6client fe80::20b:cdff:fef8:1c32	---> does not work

> The problem with the above two is that the clien is trying to make a
> connection to a "link-local" address.  One requirement of sockets
> using or connecting to link-local addresses is that the interface on
> which the connection should be made must also be specified.

Indeed. Try this:

 ip6client fe80::20b:cdff:fef8:1c32%eth0

>> the sources of these two small apps are below. where is the mistake i made?
>> any ideas?
>> 			if(connect(sockfd, res->ai_addr, res->ai_addrlen)==0){

> Here, connect expects that res->ai_addr.sin6_scopeif would contain a
> valid interface id, and IMO getaddrinfo() does not set this.

It does, if the address contains the %eth0 part.

-- 
Lionel
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