Fixed ip addresses. Can I add an additional router to by BT3 Hub

[enveetee]

Good day.

We have 5 fixed IP addresses and 12 pieces of equipment which need to be accessed externally. Each of these devices are on a separate port.

Is it possible to add another router (with one of the 5 ip addresses) then port off each device from the second router?

If so, could someone recommend a router

[anthonyriley99]

Not that I'm aware of...

As I understand it... there can only be one router connected to a single internet connection that can act as a gateway device (or main router), this means the gateway's range of ip addresses are the only ones used and allocated to devices on the connection regardless of another router being connected because the 2nd router would need to be set as though it's transparent or act as though both are one device if so to speak (hence network bridge or bridge mode), so this method would still require a static ip address for each device that you require remote access to.

..So the question now is, what are the ways around this without forking out for 12 static ip addresses?

This all depends on what you want and use remote access for? I.e.. CCTV Cameras, Mail Servers, Web Servers, Data Monitoring Equipment or even access to a PC?

In most cases you would need to have a server or device acting in the same way, where information from multiple devices data all stored on one network device/storage point which will can then be tailored to have controlled access to separate device data again  (i.e.. maybe a web login page where you could remotely connect to it only having the access to own/required data - as set by the server type device).

Other options are, working on the cloud or just having the data put on a managed server, which is most cost effective.

- Sorry if I have not been able explain myself properly.

[LinuxLady]

As long as the connected devices are listening on seperate ports you could do it with two routers/gateways and some port forwarding on the BT hub and NAPT on the second router. That's the approach I use on my setup - my orange zone is directly behind the BT hub and one of those orange zone IPs is my second router/firewall hiding my green & blue zones. (I'm a bit naughty in that my printers are all in my green zone so I punch through holes so I can still print from my servers, hence the need for accessible devices)

If they are listening on the same port and you need to talk to them on that port (e.g. you wanted to run something like two DNS servers on the second network), then it's not possibly without using as many IP addresses as you want to have simultanious port/IP combinations.

I use a Speedtouch TG584 on my network to do this, which is a nice little box with a fairly powerful CLI. Having said that I'm probably going to be replacing it soon with a Zentyal box.

TTFN

Faye

[enveetee]

Faye

Thanks for this reply, sorry it has taken so long for me go get back to this post

I have a few old ADSL routers kicking about in my coms room so I'll give it a crack

Cheers

[andyt22]

Yes, you can put a second router on one of the fixed IP addresses and then do whatever you want on that router. I do this all the time - I use port forwarding via a OpenBSD router on one static IP address to connect to servers on the internal LAN for backing up other people's servers, etc. I'm also using two more identical OpenBSD routers on two separate static IP addresses to develop a CARP setup, which will eventually be used to provide automatic failover between my BT Infinity and Pipex ADSL connections.

cheers, Andy