chmv Posted September 2, 2009 Report Share Posted September 2, 2009 Is it possible to read somewhere about local peer discovery?I have found that this feature uses multicast 239.192.152.143. However, I have a local network with many IGMP enabled routers. Multicast chats work normally on all network, but µTorrent local peer discovery is not. Any help or suggestions?Thank you! Link to comment Share on other sites More sharing options...
DreadWingKnight Posted September 2, 2009 Report Share Posted September 2, 2009 How far along do packet sniffing captures detect the multicast communication? Link to comment Share on other sites More sharing options...
chmv Posted September 2, 2009 Author Report Share Posted September 2, 2009 I am sorry, what exactly do you mean?(one router per apartments block (1-20 users), and 2-3 hops to network core) Link to comment Share on other sites More sharing options...
DreadWingKnight Posted September 2, 2009 Report Share Posted September 2, 2009 do you still see the multicast in stuff like wireshark or no? Link to comment Share on other sites More sharing options...
chmv Posted September 2, 2009 Author Report Share Posted September 2, 2009 I see multicast group 239.192.152.143 on the nearest router, but not further.Added:Hmm... It's working fine in one network segment... But what about all local network? TTL = 1? Link to comment Share on other sites More sharing options...
DreadWingKnight Posted September 2, 2009 Report Share Posted September 2, 2009 And do the other multicast chats have the same effect? Link to comment Share on other sites More sharing options...
chmv Posted September 2, 2009 Author Report Share Posted September 2, 2009 All users in network segments with IGMP enabled routers can use Vypress chat (multicast group 227.0.0.2). And I see this group on all routers...But this program has an interesting settings: screenshotOk... May be now I know... why multicast group 227.0.0.2, 239.255.255.250 is working fine on all network segments and 239.192.152.143 is not...RFC23656.2. The IPv4 Organization Local Scope -- 239.192.0.0/14 239.192.0.0/14 is defined to be the IPv4 Organization Local Scope, and is the space from which an organization should allocate sub- ranges when defining scopes for private use.Any suggestion? Link to comment Share on other sites More sharing options...
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