> Hi Michael,
> 
> I'm working with a Linux From Scratch based kernel (version 3.4.7)
> running in a virtual machine and with virtual switches.
(...)
> `tcpdump -ni eth1 port 5404` returns:
> 
> listening on eth1, link-type EN10MB (Ethernet), capture size 65535 bytes
> 16:22:27.849551 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 16:22:28.210578 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 16:22:28.770181 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 16:22:28.989802 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 16:22:29.370684 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 16:22:29.751062 IP 192.168.200.166.5404 > 224.0.0.18.5405: UDP, length 87
> 
> Every now and then there is a packet from r4 (192.168.200.170), it does
> appear as though r4 is quite quiet though.

Ah. No pakcets from 192.168.200.166 unicast? Please try to configure unicast in 
your corosync configuration. See the udpu README file of corosync.

I had the same problem and the cause was the the virtual bridge or KVM dropped 
all multicast packets.

Greetings,

-- 
Dr. Michael Schwartzkopff
Guardinistr. 63
81375 München

Tel: (0163) 172 50 98
Fax: (089) 620 304 13

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