(usagi-users 02345) Re: RADVD

[william chao <chao@xxxxxxxxxxxxxxxx>]

I don't understand why are you making the HA to do the radvd. I thought one 
would usually make the radvd routes on router. But I think you can do that. 
To make two subnet out of 3ffe:302:11:2::, you should do 3ffe:302:11:2::/63 
at least. The router should have a fix address if you want to run 
radvd.  You can radvd for two interfaces one for each subnet. To router 
between two subnets you will have to turn on the forwarding.

If can configure a fix site local address if you desired. However once the 
advertise prefix is head, the kernel will give you another address with 
that prefix. After you switched to another AP that connect you to another 
network that has radvd, you will get yet another address. Don't you just 
love the radvd? Now you have four addresses (link local, site local, 2xglobal).

At 02:46 PM 5/1/2003 -0400, you wrote:
> William.
>
> Thank you for the example, the HA radvd config file I think is correct, In 
> your example below, the ravdv will advertise 3ffe:302:11:2, which has a a 
> subnet of two, should this route advertisement prefix be used only by 
> mobiles or computers in that subnet (2) or should another HA or router 
> generate a Global IP using this prefix, even though the site local address 
> subnet is set to 3 example fec0:0:0:3:45:45fe:ff46:4565.
> As you mention below, the mobile does auto configure a Global address 
> using the prefix and appending the Mac address with some manipulation 
> (ff:fe etc), in addition to this, the mobile is also auto configuring 
> another Global IP with the same prefix but a random Interface ID. In the 
> case of the Link Local address fe80::MAC ADDRESS all the interfaces do 
> have one.