topic Re: Device IP settings in Full Fibre

Device IP settings

spaarks11 — Thu, 24 Apr 2025 10:28:56 GMT

I have added a device (a transceiver radio) to my network.

It appears correctly on the Device List but without an IP Address. So I have added an IP Reservation using an IP in the range of the other devices, 192.168.5.15, but there is no connection and Ping does no connect.

Is there something about IP Reservation....?

Re: Device IP settings

KeithFrench — Thu, 24 Apr 2025 12:20:00 GMT

Hi @spaarks11

You should never apply a static IP address (unless you really mean a DHCP reserved IP address) within the IP address range (DHCP Scope). However, in this case, it sounds like this device is not connecting correctly to the router. Can you please remind me of the make/model of the router you have? Does this device connect via wireless or Ethernet?

Re: Device IP settings

spaarks11 — Thu, 24 Apr 2025 12:39:11 GMT

Yes it was a DHCP Reserved address which I entered within the DHCP Scope.

Eero6.

Connecting via wireless.

Re: Device IP settings

KeithFrench — Thu, 24 Apr 2025 13:49:02 GMT

Hi @spaarks11

Please can you PM me a screenshot of this device's entry in the eero app, thanks.

Re: Device IP settings

spaarks11 — Thu, 24 Apr 2025 13:53:44 GMT

Eero screenshot

Re: Device IP settings

KeithFrench — Thu, 24 Apr 2025 13:59:01 GMT

That shows it as online, I am not really sure what the problem is. Does this device not have internet access or something? Can you please elaborate?

Re: Device IP settings

spaarks11 — Thu, 24 Apr 2025 14:02:27 GMT

I have the device connected to my WLAN network. Doesn't that mean it has internet access?

Re: Device IP settings

KeithFrench — Thu, 24 Apr 2025 14:21:32 GMT

Yes, normally, but all seems OK in the app. What is the actual problem?

Re: Device IP settings

spaarks11 — Thu, 24 Apr 2025 15:17:29 GMT

Pinging the IP address gives unreachable. I have tried using several IP addresses around similar IPs. All my other devices Ping ok.

I'm in contact with the device software group to no avail.

Re: Device IP settings

KeithFrench — Fri, 25 Apr 2025 07:40:50 GMT

Hi @spaarks11

The device may have ICMP (PING uses this) disabled, a number of devices and a lot of routers do these days, it improves security. You could try a Windows utility called TCPing, that should work.

Does this device actually work?

Re: Device IP settings

KeithFrench — Fri, 25 Apr 2025 08:48:51 GMT

Hi @spaarks11

Have you actually checked the IP address allocation on the device itself? It is not just the IP address that needs to be allocated. It will need four things:-

IP address
Subnet mask - should be 255.255.255.0
Default Gateway - should be 192.168.1.1
DNS server - should be 192.168.1.1

Re: Device IP settings

spaarks11 — Fri, 25 Apr 2025 14:06:27 GMT

What's Windows?

I will see if I can find a Linux command line that does the same thing.

The device works OK. It's just that I want to control it from the PC.

Re: Device IP settings

KeithFrench — Fri, 25 Apr 2025 14:11:09 GMT

There are a lot of Linux cli info that I have found, but you have to go through quite a few to find everything out. Try:-

iwconfig or nmcli

Re: Device IP settings

spaarks11 — Fri, 25 Apr 2025 14:15:27 GMT

1. The IP address for the device is 192.168.5.198

2. The subnet mask is 192.168.4.1/24

3. The Gateway (Eero) address is 192.168.4.1

4. DNS is 192.168.4.1

The Device doesn't seem to have a default address. I had to enter it (in the Eero app) as a Reserved IP

Re: Device IP settings

spaarks11 — Fri, 25 Apr 2025 15:11:11 GMT

Correction:

1. The IP address for the device is 192.168.5.198

2. The subnet mask for my wlan is 255.255.252.0

3. The Gateway (Eero) address is 192.168.4.1

4. DNS is 192.168.4.1

The subnet mask for my wlan shows that all my devices have addresses outside the permitted range. That is what I was told by the control software poeople. However I read elsewhere that the permitted range for IP 192.168.4.1 with a subnet mask of 255.255.252.0 is 192.168.4.1 to 192.168.7.254

Re: Device IP settings

KeithFrench — Fri, 25 Apr 2025 20:56:28 GMT

With a mask of 255.255.252.0 the IP address will be as follows:-

Network address: 192.168.4.0
Router: 192.168.4.1
First host address: 192.168.4.2
Last host address: 192.168.7.254
Broadcast address: 192.168.7.255

Now, the DHCP address range within the eero app may well limit the address range to a smaller group of addresses.

If the device is working OK, then there is no problem really.

Re: Device IP settings

spaarks11 — Fri, 25 Apr 2025 21:31:23 GMT

When I said the device was working I meant it was working manually.

What is not working is the remote control software - I can't get it to connect to the device.

It is likely the control software is the problem, but the software people haven't been much help.

I removed the reserved address I put in, and now I notice DHCP has allocated an IP address 192.168.5.25

Near time to give up on this project!

Re: Device IP settings

KeithFrench — Fri, 25 Apr 2025 21:26:52 GMT

Where is the remote control being accessed from, your Linux PC locally on the same subnet or from the internet?

Re: Device IP settings

spaarks11 — Fri, 25 Apr 2025 22:59:50 GMT

The remote control software program installed on my Linux PC.

The server for the program is built into the device.

The device has its own wifi adaptor, into which you enter your wifi router and device IP addresses (with the option of using DHCP).

Re: Device IP settings

KeithFrench — Sat, 26 Apr 2025 07:47:29 GMT

If you are using the Linux firewall, are you blocking any ports in the outbound direction?

Do you have Wireshark installed on this PC, if so can you please get me a trace of the connection attempt? I can provide full guidance on doing this if needs be.