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I'm having trouble setting up static IP for certain devices in my network.

I connect to the internet the following way:

Computer -- (cable/wifi) -- [TD-W8980] -- cable -- [HG8240T] -- fibre -- internet

The actual internet connection is done via the Huawei HG8240T which is a 4 port fibre to the home router. As the HG8240T has no wireless the only connection to it is my TP-Link TD-W8980.

The Huawei router is running the DHCP server and the TP-Link has the DHCP serve disabled.

I have entered a number of MAC addresses that I want to have a static IP on under the respective options of the Huawei

LAN > DHCP Static IP Configuration

However even with 1 minute DHCP lease the devices do not assume the static IP assigned in the router config.

If I try to reduce the dynamic IP range in the DHCP settings of the Huawei to anything else than 254 I get the message:

The primary address pool does not allow configuration of a new routing policy. You are advised to enlarge the primary address pool scale.

Unfortunately I did not find any ridge mode in the settings.

  • Why don't you configure your network settings manually on the desired devices? – Alex May 8 '17 at 17:59
  • Haven't thought about it. Would you reduce the DHCP range and assign an IP outside the range? I tried that before and the Huawei behaves oddly (cant remember the message). – seb May 8 '17 at 18:18
  • What port on the TD-W8980 is connected to the HG8240T? – Twisty Impersonator May 8 '17 at 18:45
  • @seb: yes. Supposing you are in a /24 subnet, you could assign a 100 (or whatever suits your need) ip pool to your dhcp server, and use the rest for manual configuration. What does 'behaves oddly' really mean? – Alex May 8 '17 at 18:57
  • @Alex the message is "The primary address pool does not allow configuration of a new routing policy. You are advised to enlarge the primary address pool scale." and it won't accept anything else than 254. – seb May 27 '17 at 18:20
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The range must include static addresses.

Static IP addresses were ignored if I configured them with classic assumption where static IP addresses are configured outside of dynamic address range:

Range start: 192.168.1.101
Range end:   192.168.1.199


Static IP 1: 192.168.1.11
Static IP 2: 192.168.1.12
etc...

After some trying I found out that the Range needs to include statically assigned addresses. So in this case, adjustment

Range start: 192.168.1.2

caused static IP configuration to work normally and static entries were no longer ignored.

Obviously, in Huawei routers, that "Range" is understood a bit differently.

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