RE: MAC Machines | Bonjour Protocol | OT

That you'd have to look up... I sniffed it and multicast dns definitely
uses a link local address (224.0.0.251) so it can't be routed. The easy
way would be to put the hosts back in the same vlan and just leave them in
different IP subnets. I'm not sure if this would break something else
though. Private vlans also come to mind, but that somehow seems like
overkill.

From:
Samer Labaky <samer.labaky_at_bmbgroup.com>
To:
"Rick Mur" <rmur_at_ipexpert.com>, <Keegan.Holley_at_sungard.com>
Cc:
"Cisco certification" <ccielab_at_groupstudy.com>, <nobody_at_groupstudy.com>
Date:
11/23/2009 02:08 AM
Subject:
RE: MAC Machines | Bonjour Protocol | OT
Sent by:
<nobody_at_groupstudy.com>

Thank you all for your reply,

So what can be done in order to make these MAC hosts communicate
together across VLANs ?

Is there any official website saying that they cannot work ?

My client needs it and is not stopping asking me about it :)

Help guys

Thank you
Samer

-----Original Message-----
From: Rick Mur [mailto:rmur_at_ipexpert.com]
Sent: Monday, November 23, 2009 8:54 AM
To: Keegan.Holley_at_sungard.com
Cc: Samer Labaky; Cisco certification; nobody_at_groupstudy.com
Subject: Re: MAC Machines | Bonjour Protocol | OT

I'm also not aware that this can work with multicast routing. You also
have an issue with IGMP Snooping as it doesn't do IGMP, so on a switch
where this is enabled it will not work.

-- 
Regards,
Rick Mur
CCIE2 #21946 (R&S / Service Provider)
Sr. Support Engineer - IPexpert, Inc.
URL: http://www.IPexpert.com
On 23 nov 2009, at 00:44, <Keegan.Holley_at_sungard.com>
<Keegan.Holley_at_sungard.com> wrote:
> Not possible. Bonjour or multicast DNS only works for locally
connected 
> hosts.  Even if you went to the trouble of configuring multicast
routing I 
> think the address it uses one of those 224.0.0 addresses that isn't 
> routed.  Not sure if there isn't some sort of workaroud or some kind
of 
> "directed bonjour" or something though. 
> 
> 
> 
> 
> From:
> Samer Labaky <samer.labaky_at_bmbgroup.com>
> To:
> "Cisco certification" <ccielab_at_groupstudy.com>
> Date:
> 11/22/2009 06:38 PM
> Subject:
> MAC Machines | Bonjour Protocol | OT
> Sent by:
> <nobody_at_groupstudy.com>
> 
> 
> 
> Hi,
> 
> 
> 
> I have two MAC machines in different VLANs, they are unable to
> communicate with the Bonjour protocol once they are in different
VLANs.
> In case you assign them to the same VLAN they work properly.
> 
> 
> 
> Does anyone has an idea how to make them work ?
> 
> 
> 
> Unfortunately I don't have enough time to read about it since I am
> preparing for the security track and of course reading SP books is
> better for me now J
> 
> 
> 
> Thanks for your help
> 
> Samer
> 
> 
> Blogs and organic groups at http://www.ccie.net
> 
>