Hi all,
This is my last attempt to get NLB working before I throw in the towel :)
Set up:
- 2012 R2
- HP-1910 gb switch
- Hyper-V Gen 2 nodes
Configuration
- Each node has two NICs, same subnet (192.168.30.x VLAN 30), gateway configured on the public NIC ("LAN"), no gateway on Cluster NIC ("NLB")
- Cluster set to Multicast IGMP with VIP 192.168.30.100
- Switch has IGMP snooping enabled for VLAN 30. Switch showing successful discovery of multicast group (239.255.30.100) on the port the Hyper-V host is plugged into.
State of play
- Everything converges and all works fine when called from the 192.168.30.0 subnet.
- Nothing working at all (not even ping) across subnets.
- Pinging to the LAN and NLB nics directly from another subnet works (obviously pinging the NLB NIC only works with weakhost enabled) so the basic routing between subnets is fine.
I've tried all the combinations of weakhost enabled/disabled across both the NICs and enabling forwarding on the NICs, but nothing working.
If I understand correctly, having the IGMP snooping enabled should remove the need for a static ARP entry in the switch. That said, I did try to add one anyway and the switch complained that the multicast IGMP MAC I entered wasn't valid.
Is there anything else left to try or do I just give up?
Any help appreciated
Thanks
Gary