Joined: 23 Sep 2017 Posts: 232 Location: Swindon, UK
Posted: Sat Jun 15, 2019 12:30 Post subject: Complicates Setup with Public and private IP Addresses
After some advice on the best way to setup my R8000 with public IP addresses.
I am getting a /28 of public IP addresses with my business cable connection (in a week or so).
After the network gets a couple and the router one, I have 13 available for servers/clients.
I cannot have more than these 13 public IPs.
I did intend just to assign these to all my devices (manually or via DHCP) but have since realised it is not enough addresses for all the devices (what with guests visiting using the WIFI and devices I initially forgot about such as kindles and my own phones).
I have also been nagged/advised by all and sundry that this is unsafe and a waste of public IP addresses to assign them to say mobile phones and kindles etc.
I cannot afford another router or firewall appliance at this time (to try and secure the LAN) so want to do as best I can with the R8000.
I will be getting a router from the ISP, configured in modem mode. My R8000 will connect to it with its WAN/Internet port.
For now, I will just have one server (a NAS running web, email, media servers etc) connected to the R8000. This will connect with Ethernet to one of the R8000s ports.
All other devices will connect over WIFI.
This NAS will need to be accessible from the WAN and LAN for all services.
Five of the devices on the LAN will need to be assigned public IP addresses too (I have my reasons). But some will also need to connect to devices on private IP addresses (a printer etc).
So, I need the WIFI to be used for private and public addresses.
I do not have the funds for an additional router or firewall appliance currently. I could afford to go to a WAP at a push, if this would even be of any use.
So, I have 7 spare public IP addresses and obviously can use as many private ones as needed, but 15-20 would be a good figure.
Maybe this is too much for dd-wrt to do without additional hardware?
If it is possible what would be the best way to go about it?
If not, I guess I will go with my original idea, of just assigning as many of my devices public IPs as I can, and guests will just have do make to with their 3G/4G connections, and some devices will just have to borrow a public IP some times.
Many thanks for any thoughts on *configuring this*.