Re: MAC Machines | Bonjour Protocol | OT

You COULD use the multicast --> broadcast (or unicast) conversion
process... I believe the term in documentation is Multicast
Intermmediate Helper Address or something that.

Not pretty, but functional. Bonjour is a kinda chatty protocol you may
not really want floating around your larger network (or vlan for that
matter). Just my opinion.

*Scott Morris*, CCIE/x4/ (R&S/ISP-Dial/Security/Service Provider) #4713,

JNCIE-M #153, JNCIS-ER, CISSP, et al.

JNCI-M, JNCI-ER

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Samer Labaky wrote:
> Thank you a lot,
>
> so no way to make it work without this software solution ?
>
> Can we buy it ?
>
> Is there any official document on the internet saying that this cannot
> work.
>
> I need to convince my client by something on the internet.
>
> Thank you a lot guys for your support.
> Samer
>
>
>
>
> -----Original Message-----
> From: Alexei Monastyrnyi [mailto:alexeim73_at_gmail.com]
> Sent: Monday, November 23, 2009 11:51 AM
> To: Keegan.Holley_at_sungard.com
> Cc: Samer Labaky; Cisco certification; nobody_at_groupstudy.com; Rick Mur
> Subject: Re: MAC Machines | Bonjour Protocol | OT
>
> There is a custom solution to this issue, unfortunately not available
> for public use. I have just checked with the authors, they have embedded
>
> that into their software solution for stock trading. Essentially it
> tunnels via TCP whatever is on that group 224.0.0.251. This runs in form
>
> of Windows service or Unix daemon (currently on OSX, Solaris and Linux)
> and quite a complex application in itself, capable of intercepting
> Bonjour requests, tunneling, conditionally multicasting them into a
> destination segment etc etc.
>
> Not sure if it helps. ;-) It is amazing however which ways people take
> to make things working. They once hit the problem and just developed a
> solution in a matter of week. :-)
>
> Cheers,
> A.
>
> Keegan.Holley_at_sungard.com wrote:
>
>> 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.
>>
>
>
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Received on Tue Nov 24 2009 - 08:44:05 ART