Advice regarding network using ISP Router and owned Router

[ChitoWarlock]

Hopefully this is the right section to ask help with this for

 

Right now my home network is comprised of 2 routers (ISP provided and a personal one) and a switch. I dont have access to the UI for the ISP one (i have tried factory reset already).
The network between both router is on subnet 192.168.1.0 and after the TP-link router its 192.168.0.0, right now  if i plug anything in the ISP router it isnt available everywhere else and that stops me from doing port forwarding on my UNRAID Server.

 

Any way i could unfuck this netowrk without configuring the ISP Router?

[Oshino Shinobu]

Having two (consumer) routers on the network causes problems at the best of times. Without being able to configure one is simply not going to work well.

 

They're on different subnets, which is why you can't access anything connected to the ISP router from the TP-Link router and vice-versa. You can move the TP-Link router to the 192.168.1.0/24 subnet (assuming you're using the LAN ports on both routers to connect them, not WAN) and that would allow you to access things connected to both, but you'd then start running into potential DHCP conflicts. As you can't configure the ISP one, no matter what IP you assign to the TP-Link, there's always a chance the ISP router will assign that IP to another device. You'd also need to disable a bunch of features on the TP-Link to avoid conflicts, at which point there's no point in having it.

 

I'd contact your ISP for details on how to configure the ISP router. Ideally, ask them how to set up the TP-Link to remove theirs, assuming they're an ISP that will let you and that it's not a modem/router combo while the TP-Link is not.

 

If you need to have the ISP router for whatever reason, I'd advise getting rid of the TP-Link one as there's no point in having it, it will just add needless hops and issues to the network. If you have it for wireless, buy an access point instead as that's the only thing you'd need.

 

EDIT: As long as the ISP router is serving as the border gateway for you network, any port forwarding for your UNRAID will have to be done there. TP-Link router will only see the local IP from the ISP router without any config on the ISP one.

[mononymous]

You can have an ISP that allows third party modems but you still have to refer to your ISP whether it is possible. 

[ChitoWarlock]

37 minutes ago, Oshino Shinobu said:

Having two (consumer) routers on the network causes problems at the best of times. Without being able to configure one is simply not going to work well.

 

They're on different subnets, which is why you can't access anything connected to the ISP router from the TP-Link router and vice-versa. You can move the TP-Link router to the 192.168.1.0/24 subnet (assuming you're using the LAN ports on both routers to connect them, not WAN) and that would allow you to access things connected to both, but you'd then start running into potential DHCP conflicts. As you can't configure the ISP one, no matter what IP you assign to the TP-Link, there's always a chance the ISP router will assign that IP to another device. You'd also need to disable a bunch of features on the TP-Link to avoid conflicts, at which point there's no point in having it.

 

I'd contact your ISP for details on how to configure the ISP router. Ideally, ask them how to set up the TP-Link to remove theirs, assuming they're an ISP that will let you and that it's not a modem/router combo while the TP-Link is not.

 

If you need to have the ISP router for whatever reason, I'd advise getting rid of the TP-Link one as there's no point in having it, it will just add needless hops and issues to the network. If you have it for wireless, buy an access point instead as that's the only thing you'd need.

 

EDIT: As long as the ISP router is serving as the border gateway for you network, any port forwarding for your UNRAID will have to be done there. TP-Link router will only see the local IP from the ISP router without any config on the ISP one.

The isp one is a combo unit, and it's only being used to plug through LAN to my TP-link one.

 

I think i may get away with switching the tp-link subnet because i can configure every other AP on the network to connect to the tp-link router. So it might still work out?

[mononymous]

31 minutes ago, ChitoWarlock said:

The isp one is a combo unit, and it's only being used to plug through LAN to my TP-link one.

If it is a "combo unit" ie. modem + router. You would still need a modem before the TP-link router to connect to the internet. 

[Oshino Shinobu]

8 hours ago, ChitoWarlock said:

The isp one is a combo unit, and it's only being used to plug through LAN to my TP-link one.

 

I think i may get away with switching the tp-link subnet because i can configure every other AP on the network to connect to the tp-link router. So it might still work out?

But if you can't configure it, the ISP is still going to be performing NAT, DHCP, DNS etc. Even if you move the TP-Link one to the ISP one's subnet, you'll basically have to disable everything and put it in AP mode as it performing any other functions is going to cause problems