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| docs:guide-user:network:integrating-lede-introduction [2018/03/03 20:14] – ↷ Page moved from docs:user-guide:network:integrating-lede-introduction to docs:guide-user:network:integrating-lede-introduction bobafetthotmail | docs:guide-user:network:integrating-openwrt-introduction [2022/07/25 10:31] (current) – [What is Double NAT] socrates | ||
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| - | ===== Integrating | + | ====== Integrating |
| - | If you want to have a LEDE-powered network infrastructure, | + | If you want to have an OpenWrt-powered network infrastructure, |
| - | The main reason is that daisy-chaining routers is not a good idea. Depending on the type of Internet access equipment you have or have been given by your ISP, you may encounter a situation known as double NAT, which isn't good.\\ While double NAT doesn' | + | The main reason is that daisy-chaining routers is not a good idea. Depending on the type of Internet access equipment you have or have been given by your ISP, you may encounter a situation known as double NAT, which isn't good.\\ |
| - | Double NAT also screws up communication between devices connected to the upstream device (the device provided by the ISP) and the downstream device (the LEDE router). | + | While double NAT doesn' |
| + | Double NAT also screws up communication between devices connected to the upstream device (the device provided by the ISP) and the downstream device (the OpenWrt | ||
| - | ====What is NAT==== | + | ===== What is NAT ===== |
| In a typical home network, you are allotted a single public IP address by your ISP, and this address gets issued to your router when you plug it into the ISP-provided gateway device (e.g. a cable or DSL modem). The router' | In a typical home network, you are allotted a single public IP address by your ISP, and this address gets issued to your router when you plug it into the ISP-provided gateway device (e.g. a cable or DSL modem). The router' | ||
| - | ====What is Double NAT==== | + | ===== What is Double NAT ===== |
| When NAT is being performed not just on your router but also on another device that's connected upstream (on its WAN port/ | When NAT is being performed not just on your router but also on another device that's connected upstream (on its WAN port/ | ||
| - | Any UPnP and/or port forwarding you enable on your LEDE router is pointless, because incoming remote access requests never make it that far -- they arrive at the public IP address on the upstream device, where they' | + | Any UPnP and/or port forwarding you enable on your OpenWrt |
| - | + | Double NATing will also have a performance impact on bandwidth and latency because more processing is required by the network device to relay traffic. | |
| - | ====Upstream NAT==== | + | ===== Upstream NAT ===== |
| - | If the double NAT is happening in your own network, you can usually fix it or at least sidestep it. But many ISPs use NAT within their network infrastructure so they don't waste public IP addresses, in this case the only way to fix it is to call them and ask (and pay) for a public IP. It's usually | + | If the double NAT is happening in your own network, you can usually fix it or at least sidestep it. But many ISPs use NAT within their network infrastructure so they don't waste public IP addresses, in this case the only way to fix it is to call them and ask (and pay) for a public IP. It's usually |
| To check for double NAT on your upstream network, log into your ISP device and look up the IP address of its WAN port. If you see an address in the 10.x.x.x, 172.16.x.x or 192.168.x.x range (these are private IP ranges according to IPv4 standards) it means that the device your router' | To check for double NAT on your upstream network, log into your ISP device and look up the IP address of its WAN port. If you see an address in the 10.x.x.x, 172.16.x.x or 192.168.x.x range (these are private IP ranges according to IPv4 standards) it means that the device your router' | ||
| - | Also, another way is to look at the IP address of its WAN port, and connect to a site that tells you your pubblic | + | Also, another way is to look at the IP address of its WAN port, and connect to a site that tells you your public |
| For Linux users, there are also CLI commands to run that can provide what is the WAN IP address of the router you can then compare to the IP shown by the websites. [[https:// | For Linux users, there are also CLI commands to run that can provide what is the WAN IP address of the router you can then compare to the IP shown by the websites. [[https:// | ||