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18.1 Legacy Series / Re: [SOLVED] CARP won't become MASTER, both systems always BACKUP
« on: February 08, 2018, 02:56:55 pm »
I just switched from a single pfSense machine to HA OPNsense on a pair of R610s and saw the exact same behavior with ESXi 6.5.
Another thing I found out, I like to present 1 vNic to the server, while using 2 physical uplinks on the esxi side. This way if fail over occurs, ESXi handles it via the built in NIC teaming and it's transparent to the VM. However the NIC teaming introduces another issue. As soon as I plugged in the 2nd sets of cables the interfaces went hard down and stayed in the Backup state.
Long story short if you are going to run this on ESXi do exactly what was said, set the vSwitches to allow promiscuous mode, MAC address changes, and forged transmits and then change Net.ReversePathFwdCheckPromisc to 1, reboot ESXi, and you should be money.
I have been incredibly happy with this setup since then
Helpful links:
http://www.blissfulidiot.com/2013/11/using-carp-with-vmware-esxi.html
https://kb.vmware.com/s/article/2144849 (<--- Confirms this is an expected behavior of ESXi)
Another thing I found out, I like to present 1 vNic to the server, while using 2 physical uplinks on the esxi side. This way if fail over occurs, ESXi handles it via the built in NIC teaming and it's transparent to the VM. However the NIC teaming introduces another issue. As soon as I plugged in the 2nd sets of cables the interfaces went hard down and stayed in the Backup state.
Long story short if you are going to run this on ESXi do exactly what was said, set the vSwitches to allow promiscuous mode, MAC address changes, and forged transmits and then change Net.ReversePathFwdCheckPromisc to 1, reboot ESXi, and you should be money.
I have been incredibly happy with this setup since then
Helpful links:
http://www.blissfulidiot.com/2013/11/using-carp-with-vmware-esxi.html
https://kb.vmware.com/s/article/2144849 (<--- Confirms this is an expected behavior of ESXi)