I was reading around the documentation yesterday trying to determine why I was unable to get my external IP's from my 4 nic's on GCP to be mapped within WHM. It sees the internal IP's, but fails to map external other than nic0. Upon reading, "If the New IP and IP range to add value uses Class C CIDR format, you must use a mask range between 24 through 30.", here my questions are:
1. Is 1:1 NAT required, or was this how WHM identified the internal structure of the available IP's in the instance, that setting up the subnet mask ranges to 24-30 will resolve this? Currently they are all set to /20, but of course, you can't remove a nic from a running instance, so I need to start over. Or, should instead of using a mask, should I use a range? Rather than 10.xxx.0.0/20 use 10.xxx.0.0-10.xxx.0.255?
2. If in fact NAT is required, are there supplemental firewall rules I need to consider?
3. If NAT isn't required, are there supplemental firewall rules?
I would really like to avoid going thru the entire setup process again only to find out I have wasted several hours of my time, again.
1. Is 1:1 NAT required, or was this how WHM identified the internal structure of the available IP's in the instance, that setting up the subnet mask ranges to 24-30 will resolve this? Currently they are all set to /20, but of course, you can't remove a nic from a running instance, so I need to start over. Or, should instead of using a mask, should I use a range? Rather than 10.xxx.0.0/20 use 10.xxx.0.0-10.xxx.0.255?
2. If in fact NAT is required, are there supplemental firewall rules I need to consider?
3. If NAT isn't required, are there supplemental firewall rules?
I would really like to avoid going thru the entire setup process again only to find out I have wasted several hours of my time, again.
