It should be as simple as setting the IPv6 Configuration Type on your WAN interface to DHCP6 and on your LAN interface to track the WAN interface.
If that doesn't work try changing your DUID type.
I'm using pfsense but you should be able to find something similar under system > advanced >...
ESXi 8 dropped driver support for CX3/CX3 Pro cards.
Future versions of ESXi will likely drop support for CX4 cards once nvidia drop support for CX4 (and it looks like they might do this soon), but don't quote me on this.
If you're doing PCIe passthrough for those cards, then it's not an...
You need PCIe x16 slots that can bifurcate into 4x4x4x4x. There's also PCIe retimer hardware on that board.
the "E604" part of the model number simply means 512e drive with 6Gb/s SATA interface (E6), power disable 3 pin...
Looking at the GB57 firmware file in hex editor, there seem to be just empty padding even if the header is trimmed to 1044480 bytes. There's still a remaining 80 bytes of empty padding before the actual meat begins.
1048576 bytes doesn't work on the SM863, it popped an I/O error. I had to trim another 512 bytes (resulting in 1048064 bytes) for the fw flash to be successful.
The stated firmware version in smartctl still didn't update though, so I'm not sure if the fw flash is even successful. o_O
$23 each, but not what I'll call sensible use of money either since converting both ports will basically bring the cost to ~$81(23+23+35).
Might as buy a new NIC that's supported in ESXi 8.
iirc ConnextX-3 Pro cards support RoCE v2, but it's worth noting the mlx4 driver stack is not present in ESXi 8, so no more driver support for cards older than ConnectX-4.
These cards are really on their last legs (~3 years left) if you're still rolling with ESXi.