routing traffic from multiple IPs to the same VM

From @Hachquevia Twitter

So far it's seeming like routing traffic from multiple public IPs to the same VM in Azure is impossible :/

We provided:aka.ms/d535354

@AzureSupport I tried this but I'm using Resource Manager not Classic load balancers, and this doesn't seem to work on RM load balancers?                               

@AzureSupport I'm not sure which part of Azure constitutes a "cloud service". The Portal seems entirely centred around resource groups?

@AzureSupport Yeah, Azure only allows me to assign one load balancer per VM; I have 1 VM, I want 20 public IP addresses to route to it                               @AzureSupport What I'd ideally like to do is have like 20 load balancers with NAT rules to map ports on public IPs to different ports on VM                               

@AzureSupport but it won't let me do that, multi-NIC doesn't work without $$$, and multi VIP doesn't work in RM                               

@AzureSupport and so I'm wondering how anyone is supposed to be serving up multiple Docker containers on the one VM?                               

Thanks,

@AzureSupport