Hi Miakel,
Thanks for your quick inputs.
Just confirming,
In that case how reliable is it to perform ping6 and use the
scope_id(=interface_id) during starting the TCP connection?
So that TCP connect() is done only once.
My understanding is,
RFC 4443 of ICMPv6 mandates ECHO request and response processing.
so I believe it should be o.k to rely on ping6 to get the right interface_id.
Regards,
Parav Pandit
--- On Thu, 5/27/10, Mikael Abrahamsson <swm...@swm.pp.se> wrote:
> From: Mikael Abrahamsson <swm...@swm.pp.se>
> Subject: Re: which interface to choose to send to destination link-local
> address - any RFC?
> To: "Parav Pandit" <paravpan...@yahoo.com>
> Cc: "Mohacsi Janos" <moha...@niif.hu>, ipv6@ietf.org
> Date: Thursday, May 27, 2010, 5:06 PM
> On Thu, 27 May 2010, Parav Pandit
> wrote:
>
> > I don't know on which vlan the destination link-local
> address is.
>
> Well, you pretty much know that to send packets to it. A
> link-local address is not just an address, you need to
> provide what interface you're referring to. It's of local
> signifance only.
>
> > 1. As a user am I supposed to do ping6 on all of them
> one by one?
>
> That is one way.
>
> > 2. How does the TCP will work? Open #19 connections to
> the destination link-local address with different scope
> id??
> > How does the application running on top of TCP stack
> know about the physical interfaces of the system?
>
> Basically this is not how you're supposed to use LL, that's
> why your questions doesn't really "compute". LL is
> address+interface, otherwise it's not complete.
>
> -- Mikael Abrahamsson email: swm...@swm.pp.se
>
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