Hi, ----- Original Message ----- > From: "Frank Wall" <[email protected]> > To: [email protected] > Sent: Friday, September 6, 2013 8:05:21 PM > Subject: [Users] Guest to guest multicast > > Hi, > > I'm trying to use the VRRP protocol between two VMs, but the multicast > traffic never gets through. On the oVirt host I can see the VRRP > advertisements coming in for both VMs: > > aio:~# tcpdump -n -X -i vnet3 net 224.0.0.0/4 > listening on vnet3, link-type EN10MB (Ethernet), capture size 65535 > bytes > 18:58:31.841220 IP 10.1.2.3 > 224.0.0.18: VRRPv2, Advertisement, vrid 1, > prio 0, authtype none, intvl 1s, length 36 > > aio:~# tcpdump -n -X -i vnet8 net 224.0.0.0/4 > listening on vnet8, link-type EN10MB (Ethernet), capture size 65535 > bytes > 19:02:26.907054 IP 10.1.2.4 > 224.0.0.18: VRRPv2, Advertisement, vrid 1, > prio 100, authtype none, intvl 1s, length 36 > > > What is required to enable guest-to-guest multicast communication on an > oVirt node?
Are they on the same virtual network/bridge? Did you check iptables? You can add a rule to log such things and see if it was iptables that blocked it (or something else). Check both host and VMs. -- Didi _______________________________________________ Users mailing list [email protected] http://lists.ovirt.org/mailman/listinfo/users
