"{Darkavich} Steven Misrack" <[EMAIL PROTECTED]> wrote:
> I think we talked about this once before, but I don't remember if
> we figured out how to do it.
>
> I have two subnets and I want to have one failover group that all
> machines are part of. Does anyone know an easy way to do this?
>
> I am thinking (multi-cast forwarding) but am not sure.
It'll have to be multicast (broadcast won't propagate across routers)
and you'll have to bump up the value of 'multicastTTL' in the auth.props
file on all servers to allow the group membership multicasts to survive
their trip through the router. The resulting configuration will be
officially unsupported.
See <http://www.filibeto.org/pipermail/sunray-users/2005-July/001173.html>
for more background.
Hmm. I say "broadcast won't propagate across routers" but some routers
will forward broadcasts if they are explicitly configured to do so. If
you have a cisco router between these subnets you could try configuring
the Sun Ray authd to send broadcasts rather than multicasts and then use
the 'ip-helper' directive on the router to get it to forward UDP
broadcasts on port 7009 from one subnet to the other. (On each subnet's
local interface specify the other subnet's broadcast address as the
ip-helper destination.) I've no idea what will happen if you try this
but I'd be very interested to hear the result. The answer might be a
total network meltdown if the router decides to propagate its own
forwarded broadcasts back and forth, so be ready to pull the plug on at
least one interface if you decide to try it. Maybe specifying the
individual Sun Ray server IP addresses as the ip-helper destinations is
a safer bet than specifying a broadcast destination.
OttoM.
__
ottomeister
Disclaimer: These are my opinions. I do not speak for my employer.
--
___________________________________________________
Play 100s of games for FREE! http://games.mail.com/
_______________________________________________
SunRay-Users mailing list
[email protected]
http://www.filibeto.org/mailman/listinfo/sunray-users
