F5F Stay Refreshed Power Users Networks Several fixed IP addresses shared among numerous routers on the same network

Several fixed IP addresses shared among numerous routers on the same network

Several fixed IP addresses shared among numerous routers on the same network

Z
ZuzuPebbles
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52
12-15-2016, 01:24 AM
#1
You can connect extra routers to the primary router by linking them via its interface. Assign each new router a static public IP from your existing list, then configure port forwarding on those devices independently—no changes needed on the main router. This setup lets you expand your network without affecting the core configuration.
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Z
ZuzuPebbles
12-15-2016, 01:24 AM #1

You can connect extra routers to the primary router by linking them via its interface. Assign each new router a static public IP from your existing list, then configure port forwarding on those devices independently—no changes needed on the main router. This setup lets you expand your network without affecting the core configuration.

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I
iiSweeTzz
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12-15-2016, 03:03 AM
#2
Network layout? In a modest setup with a single ISP, you'll have one central firewall/router. Connect all public IPs to it, then forward traffic to devices using NAT. Avoid adding extra internal routers unless necessary, especially if NAT is in use.
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I
iiSweeTzz
12-15-2016, 03:03 AM #2

Network layout? In a modest setup with a single ISP, you'll have one central firewall/router. Connect all public IPs to it, then forward traffic to devices using NAT. Avoid adding extra internal routers unless necessary, especially if NAT is in use.

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Jasmar09
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12-16-2016, 03:42 PM
#3
Exploring the core concepts behind this idea. It highlights the essential components involved.
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Jasmar09
12-16-2016, 03:42 PM #3

Exploring the core concepts behind this idea. It highlights the essential components involved.

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D
dkemelor
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12-16-2016, 08:55 PM
#4
You're likely using CGNAT, which means there are two layers of NAT. Usually people can't forward ports, but there are ways to get UPnP to function. Routers often handle CGNAT by providing a group of IP addresses for all devices.
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D
dkemelor
12-16-2016, 08:55 PM #4

You're likely using CGNAT, which means there are two layers of NAT. Usually people can't forward ports, but there are ways to get UPnP to function. Routers often handle CGNAT by providing a group of IP addresses for all devices.

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ninjakitty2
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132
12-18-2016, 02:28 PM
#5
It seems you're referring to a setup where a /28 address is managed by your ISP. The initial IP belongs to the ISP, and subsequent addresses are assigned based on the connected device. You have two choices: link a switch to the ISP for direct device IPs or use a router/firewall with 1:1 NAT to route traffic from specific public IPs to internal servers. 1:1 NAT functions like port forwarding across all ports in both directions.
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ninjakitty2
12-18-2016, 02:28 PM #5

It seems you're referring to a setup where a /28 address is managed by your ISP. The initial IP belongs to the ISP, and subsequent addresses are assigned based on the connected device. You have two choices: link a switch to the ISP for direct device IPs or use a router/firewall with 1:1 NAT to route traffic from specific public IPs to internal servers. 1:1 NAT functions like port forwarding across all ports in both directions.

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Flower_Mermaid
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12-18-2016, 05:09 PM
#6
I’d set up my primary router—probably an EdgeRouter—linked to the backhaul fiber, placing all my IPs on it. Then connect the extra routers to a switch within that network. Configure one-to-one NAT on either a router or a managed switch such as the EdgeSwitch from Ubiquiti. If you’re managing 200–400 clients, consider scaling options for better performance.
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Flower_Mermaid
12-18-2016, 05:09 PM #6

I’d set up my primary router—probably an EdgeRouter—linked to the backhaul fiber, placing all my IPs on it. Then connect the extra routers to a switch within that network. Configure one-to-one NAT on either a router or a managed switch such as the EdgeSwitch from Ubiquiti. If you’re managing 200–400 clients, consider scaling options for better performance.

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Kamikaze_007
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12-26-2016, 04:52 PM
#7
Option a describes a setup where the ISP links straight to a switch, while each router connects to the switch and can utilize multiple public IP addresses. There isn’t a single primary router. Option b outlines a different arrangement: the ISP connects directly to the main router, which handles one-to-one translation between public and private IPs. Other routers with private IPs either connect to the main router if ports are available or to a LAN switch. The method for managing multiple clients depends on configuration choices. For instance, using PPPoE would demand more processing power compared to DHCP. This setup isn’t something you’d need to consider when launching an ISP business.
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K
Kamikaze_007
12-26-2016, 04:52 PM #7

Option a describes a setup where the ISP links straight to a switch, while each router connects to the switch and can utilize multiple public IP addresses. There isn’t a single primary router. Option b outlines a different arrangement: the ISP connects directly to the main router, which handles one-to-one translation between public and private IPs. Other routers with private IPs either connect to the main router if ports are available or to a LAN switch. The method for managing multiple clients depends on configuration choices. For instance, using PPPoE would demand more processing power compared to DHCP. This setup isn’t something you’d need to consider when launching an ISP business.

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