Some PCs on the network does not respond to Multicast Address

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Hi,

Some PC on the network does not repond to multicast address..when i do ping ff02::01
ethereal shows EchoReply only for some PCs only..I cound not see the reply from that PC that is on...

Regards
Narayana Reddy.L

Posted 28-Jan-12 23:42pm

Lakkan

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Espen Harlinn 29-Jan-12 5:58am

Operating systems? Linux, OSX, Windows XP, Server 2003, Vista, 7?
Firewalls, routers, switches?
Are you talking about Pragmatic General Multicast (PGM)? http://tools.ietf.org/html/rfc3208

Lakkan 29-Jan-12 23:19pm

Operatins system is : windows7

Addy Tas 29-Jan-12 10:22am

most of the time the firewall is to blame for this and as there is not much to go on here i'll leave it at that; check the firewall settings.

Emilio Garavaglia 29-Jan-12 12:25pm

Without any idea of th network topology and related configuration whatever thing can be possible

Lakkan 29-Jan-12 23:24pm

Operating System is : WINDOWS7
Fire wall is turend off...

Command used is : ping ff02::01 from command prompt...

it shows some PC ipaddresses, not all..

Addy Tas 31-Jan-12 11:22am

Hi,

Just to be sure; is the firewall turned off on both sides of the line?
Is a regular Ping working?

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