On 11/26/05, Fredrik Tolf <
[EMAIL PROTECTED]> wrote:
On Thu, 2005-11-24 at 13:29 -0500, Jason Gauthier wrote:
> Well I was capturing TCP/IP packets because we found an Apache server
> working over IPv6.
Would you mind describing in a bit greater detail what you found, and
how your attempt was made? Such as, how did you try to connect to the
Apache server (via a DNS name or a literal address?), is the Apache
server on the same link, and so on?
Fredrik Tolf
> On 11/24/05, Fredrik Tolf <[EMAIL PROTECTED] > wrote:
> On Wed, 2005-11-23 at 22:25 -0500, Jason Gauthier wrote:
> > Well I mean, what's the use of having an IPv6 address if you
> can just
> > use your local link address?
> > There must be something I still don't understand.
>
> The point is that the link-local address can only (as the name
> implies)
> be used on the local link. Routers are forbidden to route it
> beyond the
> same physical link network.
>
> Therefore, it is often used when talking to other nodes on the
> same
> physical link (especially when another link-local address is
> used as the
> destination address). When talking to nodes on other links, an
> address
> with larger scope is used.
>
> What kind of packets is it that you are capturing? Surely, the
> link-local address isn't used if you try to contact an outside
> host,
> such as www.ipv6.org?
>
> Fredrik Tolf
>
> > On 11/23/05, Fredrik Tolf <[EMAIL PROTECTED]> wrote:
> > On Wed, 2005-11-23 at 12:15 -0500, Jason Gauthier
> wrote:
> > > When I capture packets on Windows XP and that I've
> set up an
> > IPv6
> > > address with a DHCP server, the capture says the
> request is
> > from the
> > > default address that we can't delete on Windows
> XP.
> >
> > By "default address", do you mean the fe80::*
> link-local
> > address?
> >
> > > Any idea how I could delete it or change the
> default address
> > to use?
> >
> > You cannot delete the link-local address, since the
> IPv6
> > specification
> > requires that every node has one. As for the source
> address to
> > use for
> > any given packet, that is decided depending on the
> destination
> > address
> > according to RFC 3484.
> >
> > According to RFC 3484, it is possible to make a
> certain
> > address
> > "preferred" for being used as source address, but
> even so, an
> > address is
> > only tested for being preferred once it has been
> selected as a
> > candidate
> > after being tested for scope similarity. See section
> 3.1 of
> > RFC 3484 for
> > the definition of address scopes.
> >
> > > I really need him to make requests from the DHCP
> address
> > given.
> >
> > Thence comes the real question: Why would you want
> that?
> >
> > Fredrik Tolf
> >
> >
> >
>
>