Situation in the case is that we're implementing equipment that uses
multicast to talk between multiple instances of themselves - I'm not
clear yet whether there'll be a designated talker with multiple
listeners, or whether there'll be multiple talkers and multiple

I'm reading the doco now - thanks for the tip. This should provide me
with a running start.

I'll be interested in finding out whether I can use a layer3 switch at
each end to do this, or if I need edge routers to set this up.


On 1/28/07, Chris Myers wrote:
> > Hi Kurt,

> I am not sure what you are exactly needing to use the IGMP for, but
> most firewall and vpn solutions can do what you want to do. It's a
> matter of creating the right tunnels or forwarding the right ports
> and protocols. Cisco is a solution, but Juniper can do it just as
> well. It really depends on the implementation you are needing IGMP
> for. IGMP is associated with multicast formats, so here is a Cisco
> doc that should get you started.
> >
> > ccmigration_09186a008074f26a.pdf

> Thank You,
> cmyers
> >

> On Jan 26, 2007, at 1:55 PM, Kurt Buff wrote:
> > Honorable Ones,
> >
> > I've been handed the task of getting IGMP traffic between remote
> > offices, over an IPSec tunnel.
> >
> > I have run into the apparently well-known issue of their not playing
> > nicely together, and was wondering if I could get recommendations on
> > making such a thing happen.
> >
> > We're looking at upgrading/replacing our current hardware soon anyway,
> > so recommendations as to brands that would help support this would be
> > useful, as would workarounds that don't require replacement of current
> > hardware, as I believe that would broaden the choices I have when I do
> > upgrade.
> >
> > I'm stumped, not least because my network-fu is not up to the
> > standards of many on this list, and would really appreciate some
> > pointers in the right direction.
> >
> >
> > Kurt

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