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 > > > --------------------------------------------------------------------- The IPv6 Users Mailing List Unsubscribe by sending "unsubscribe users" to [EMAIL PROTECTED]
