[radvd-devel-l] Router advertisement and forwarding on client
pekkas at netcore.fi
Tue Mar 20 11:06:24 EST 2007
On Tue, 20 Mar 2007, vincent.trucmuche wrote:
> In a LAN where router and "configuration server" would be
> separate machines, router could "announce" itself as "default
> gateway" using RA w/o prefixes and the "configuration server"
> could announce ONLY prefixes using RA w/ "router lifetime" to
> 0 (telling it is not a default router). DHCP will provide
> other informations (DNS, NTP...).
OK, but it isn't clear why you would want to have a separate
configuration server. AFAICS, that doesn't buy you anything;
there is benefit only if your default router isn't capable of
advertising some specific configuration option. I haven't seen this
>> Just Prefix Information options? Are you suggesting that radvd
>> will be able to start in non-forwarding mode if the configuration
>> includes 'AdvDefaultLifetime 0' and no more-specific route
>> statements? If yes, are you willing to create a patch that does
>> this cleanly?
> If you are OK to add this patch to radvd I will provide it to
> you. :)
If the patch is clean enough, I'm willing to seriously consider
>> As far as I understand, DHCP-PD will set up the routing for the
>> delegated prefix (on the upstream side) and the default route (on
>> the downstream WAN interface).
> I don't think so. There is nothing in RFC 3633.
Even if there isn't, you may want to examine how other vendors have
deployed solutions like this. After all DHCP-PD has been deployed to
Pekka Savola "You each name yourselves king, yet the
Netcore Oy kingdom bleeds."
Systems. Networks. Security. -- George R.R. Martin: A Clash of Kings
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