I've got remote server at data center, It has 1 physical NIC with 2 external IPs
1st IP is for host management ESXi 3.5
2nd IP is for virtual machines network
The trouble is ESXi has no iptables, just nothing to define required set of IPs. It even has no option to disable it's "welcome page" at port 80.
There is no option of hardware firewall at this data center, so I've stuck. The only option I see to rent another 1U slot, and put some hardware firewall by myself. But it's expensive.
Is there any other option to solve the issue?
If no, then what kind of hardware will be less expensive?
Keep in mind I've got only 1 physical cable from provider.