Having similar issue where we have a array of UAG server with several VIPs assigned and using IGMP Multicast. When we set up the VIPs, we added static arp entries to the routers for each of the VIPs mac addresses. We had 1 trunk on port 80 and 1 trunk
on port 443 and all was working well. We added a third trunk on 443 and I was unable to access. We verified firewall was not the issue. I was able to get to the VIP via telnet if I was using a client on the same network but directly from
the router I had no access. After further investigation, it was found that all VIPs were reporting the same mac address, this included the VIP that was hosted on the port 80 trunk. As a test, we modified the router static arp entry for the VIP
that was not working so the mac was the same as what we were seeing reported from the client on the same network. Once this was applied, we were then able to access the trunk.
The network team states that only the first trunk that is hosted on 443 is joining the multicast group and the VIP on the port 80 trunk is responding to the MAC assigned. I do not understand why the second trunk does not respond or join the Multicast
group?
With all that being said, I was under the impression the original setup was correct. Each VIP mac gets a static entry in the router. So wanting to see if anyone has had similar behavior using IGMP Multicast and how did you configure your routers?