Different subnets for the VM

[Green173]

I have an external IP address, IP 4, which is registered on my Proxmox (say 10.11.1.1/30), and I also have an alias address from my ISP (let's call it 10.12.2.2/32, there are several others, but they all use the mask /32). Previously, I used OpenVZ and, following the instructions, added the address 10.12.2.2/32 to OpenVZ_CT, and it worked. Is there any way to add this to proxmox?

If register on the host
net.ipv4.ip_forward = 1
net.ipv4.conf.default.proxy_arp = 0
net.ipv4.conf.all.rp_filter = 1
kernel.sysrq = 1
net.ipv4.conf.default.send_redirects = 1
net.ipv4.conf.all.send_redirects = 0
will it help me?

 

[VictorSTS]

Your provider should give you instructions on what do they allow to use the IP's, either for the host (/30) or the VMs/CTs (/32). Then take a look at this [1], it may help you with your configuration.

[1] https://pve.proxmox.com/wiki/Network_Configuration#sysadmin_network_routed