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1. Re: Question about multicast.address
wdfink Nov 20, 2013 10:58 AM (in response to jeryma)I'm not sure whether such vm blocks mcast addresses, if you use different sub-network the mcasts might be supressed.
You can use a JGroups test TestingJBoss to check the multicast between vm and host system and the two vm's
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2. Re: Question about multicast.address
rhusar Nov 20, 2013 11:14 AM (in response to wdfink)1 of 1 people found this helpful+1
I think you need to refer to the VM manual to see how to enable multicast forwarding (and set routing and add filewall rule, etc). I also use tool called iptraf to quickly see if any multicast traffic is coming in.
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3. Re: Question about multicast.address
jeryma Nov 21, 2013 10:50 PM (in response to jeryma)Hi,I still confuse about my multicast which it doesn't work .
netstat -gn:
IPv6/IPv4 Group Memberships
Interface RefCnt Group
--------------- ------ ---------------------
lo 1 224.0.0.1
eth0 1 224.0.0.251
eth0 1 224.0.0.1
lo 1 ff02::1
eth0 1 ff02::fb
eth0 1 ff02::1:ff92:f58
eth0 1 ff02::1
ifconfig:
eth0 Link encap:Ethernet HWaddr 00:50:56:92:0F:58
inet addr:10.19.222.51 Bcast:10.19.222.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe92:f58/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:60940441 errors:0 dropped:0 overruns:0 frame:0
TX packets:50339425 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4473947703 (4.1 GiB) TX bytes:3143536495 (2.9 GiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:42419 errors:0 dropped:0 overruns:0 frame:0
TX packets:42419 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2121000 (2.0 MiB) TX bytes:2121000 (2.0 MiB)
----------------------------------------------------------------------------------------
----------------------------------------------------------------------------------------
another machine netstat -gn:
lo 1 224.0.75.75
lo 1 224.0.0.1
eth0 1 224.0.75.75
eth0 1 228.8.8.8
eth0 1 224.0.0.251
eth0 1 224.0.0.1
lo 1 ff02::1
eth0 1 ff02::fb
eth0 1 ff02::1:ff92:f57
eth0 1 ff02::1
ifconfig:
eth0 Link encap:Ethernet HWaddr 00:50:56:92:0F:57
inet addr:10.19.222.50 Bcast:10.19.222.255 Mask:255.255.255.0
inet6 addr: fe80::250:56ff:fe92:f57/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:266661390 errors:0 dropped:0 overruns:0 frame:0
TX packets:216892654 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:204846907912 (190.7 GiB) TX bytes:156641566435 (145.8 GiB)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
inet6 addr: ::1/128 Scope:Host
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:54211 errors:0 dropped:0 overruns:0 frame:0
TX packets:54211 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:6290806 (5.9 MiB) TX bytes:6290806 (5.9 MiB)
firewall are all disabled.
what should I do?
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4. Re: Re: Question about multicast.address
rhusar Nov 25, 2013 9:38 AM (in response to jeryma)Are you binding to IPv6? The loopback doesn't forward multicast.
Try this:
sudo route -A inet6 add FF01::1 dev lo
Also double check you run:
sudo service ip6tables stop
(maybe Non-definitive guide to Clustering AS7 over IPv6 might help a bit)