ESXi multiple failover IPs on 1 VM (as firewall/router)

#1

i having a vm with 6 interfaces 5 are connected to failover IPs and 1 to the other VMs
so i have a central place to set firewall rules and also to direct ports as i have 10+ VMs
but just 5 IPs

anything works fine except 1 thing
if i look to my iptables or collectd logs ALL in coming traffic is on 1 interface
with a few rare exceptions of UDP traffic noise

any idea what could be the cause ???

#2

I imagine you’re at Online and not scaleway
How many external IP do you have ?
Which is the default one ?
Which IP is attached to the 1 interface receiving ?