Two static IP and two routers

securityguy

ElkyElky wrote: »

I was told (whether rightly or wrongly?) that the first IP, .229 would be assigned to the router and so anything connected to that router would have an outbound address as .229.

As for the .230 address, I could allocate that to one machine, say the web server, and configure the ethernet interface on that machine and assign it as a static IP. Though I did this and nothing happened.

That sounds like the sensible set up. It presumably requires that the router be happy about having only one IP number for two physical interfaces: Cisco kit has been able to do this since the dawn of time ("ip unnumbered") but as I've not needed to do it, I've not looked on other kit.

I've played around with various things and the only time I've been able to assign the second IP is by configuring the router with it, so that it assigns both addresses and thus both access the web server. But whatever I do, the router automatically assigns .229, I can't seem to prevent it. I can't assign the router .230 exclusively.

Talk to the ISP. What you want to do is presumably the exact use-case for having static IP numbers, so they should have a standard configuration available.

ElkyElky

securityguy wrote: »

That sounds like the sensible set up. It presumably requires that the router be happy about having only one IP number for two physical interfaces: Cisco kit has been able to do this since the dawn of time ("ip unnumbered") but as I've not needed to do it, I've not looked on other kit.



Talk to the ISP. What you want to do is presumably the exact use-case for having static IP numbers, so they should have a standard configuration available.

I'll pop them a message and see how they suggest I set it up. I would still ideally like both routers to have its own address, rather than just one machine using the second address. More so for running multiple services which use the same ports.

Many thanks security guy for your help. Networking has never been my strong point, hence why I'm doing a course on it now! Although playing with the routers in this way is helping me understand it all better. Ask me anything about programming however... :beer:

debitcardmayhem

ElkyElky wrote: »

I was told (whether rightly or wrongly?) that the first IP, .229 would be assigned to the router and so anything connected to that router would have an outbound address as .229.

As for the .230 address, I could allocate that to one machine, say the web server, and configure the ethernet interface on that machine and assign it as a static IP. Though I did this and nothing happened.

I've played around with various things and the only time I've been able to assign the second IP is by configuring the router with it, so that it assigns both addresses and thus both access the web server. But whatever I do, the router automatically assigns .229, I can't seem to prevent it. I can't assign the router .230 exclusively.

ElkyElky wrote: »

I'll pop them a message and see how they suggest I set it up. I would still ideally like both routers to have its own address, rather than just one machine using the second address. More so for running multiple services which use the same ports.

Many thanks security guy for your help. Networking has never been my strong point, hence why I'm doing a course on it now! Although playing with the routers in this way is helping me understand it all better. Ask me anything about programming however... :beer:

Depending on your asus router then you may be able to enable PPPoE Relay on your ISP connected router
and set the second router to use the external address x.x.x.230 but I am far too tired and old to work out how to make it work its been 10+ years and a few health scares since I ate TCP for breakfast. Your router(s) is a(are) switch and with the correct routes and netmasks
you should be able to make it work. I will go look out my TCP bibles and will think some more (well read some more and sleep too) If you get a solution from eclipse or elsewhere let us all know

securityguy

ElkyElky wrote: »

I'll pop them a message and see how they suggest I set it up. I would still ideally like both routers to have its own address:

It's unlikely you'll be able to do that the way you think.

What you could do is have one router connected to the outside world, then have a short network with an RFC1918 IP number linking it to the second router, and then have another public IP number on the other side of that. However, I can't see why you would do that. Routing inside a house (or even inside a large campus) is pretty much yesterday's solution: unless you have very compelling reasons, such as internal firewalling, it makes much more sense to just switch VLANS. And even if you do want internal firewalling, it makes more sense to run it all in a central location and distribute using switching.

ElkyElky

Hi. Me again.

Eclipe has got back to me in regards to what I've wrote here. I've asked them pretty much the same thing, having 1 router have one of my static IPs and a second router having the second address.

They've said what I need to achieve this is a No-NAT address which would allow the second IP address to be visible to the internet from the second router. That's all they could help me with since it's not an area they provide support with.