Unable to find usrp devices for USRP X440 RJ45 ethernet connection

[BIXXXY]

I tried to connect the usrp x440 to my host pc through RJ45 cable. I found the address for the dhcp of the usrp is 192.168.100.101. I can ping to this address but if I run "find_uhd_devices", it says no device found. I also tried to ssh the usrp through the ip address but still failed. Can I use RJ45 ethernet cable to connect the x440 with my host pc and run GNU Radio?

[GDEV]

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@BIXXXY wrote:

... I found the address for the dhcp of the usrp is 192.168.100.101. I can ping to this address but if I run "find_uhd_devices", it says no device found. I also tried to ssh the usrp through the ip address but still failed.

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What is the IP address of the host? 'uhd_find_devices' can only find the device, if its ip address is in the same subset as one of the network adapters on the host.

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@BIXXXY wrote:

Can I use RJ45 ethernet cable to connect the x440 with my host pc and run GNU Radio?

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Yes, but the data transfer rates will be very low.

[BIXXXY]

The host ip address is 192.168.100.100

[GDEV]

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@BIXXXY wrote:

The host ip address is 192.168.100.100

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That should work. Can you post the network configuration of the host network adapter with the ip address 192.168.100.100? Specifically the subset mask value (on Windows one can use the command line tool ifconfig and on Linux the command line tool ifconfig to query that info). Would be helpful if you could post the output of the tool you used. 

Since you know the ip address of your USRP, you can alternatively call the uhd_find_devices tool with a command line argument to specify the target address, like 'uhd_find_devices --args addr=192.168.100.101'.

[BIXXXY]

Hi, the information about the host is posted. The und_find_devices still cannot work.

 

[GDEV]

Could you please also ssh into the usrp ('ssh root@192.168.100.101') and run the cmd 'ifconfig' and post the output of it?

P.S: the ssh command support is an optional feature in windows 10 and after installing is available in the command prompt. Alternatively to using the ssh command one can also use a tool called putty to establish a ssh connection.

Regards

[BIXXXY]

Hi, the ssh is failed. I also tried putty but still cannot work.

  

[GDEV]

I am curious, how did you determine that the X440 has the IP address 192.168.100.101?

Could it be, that the ip address 192.168.100.101 belongs to a different device on the network (and not the X440)?

[BIXXXY]

I connect the x440 and my pc with a router. I check the dhcp reservation in the router and I see the address for the usrp.

 

[BIXXXY]

Hi. I am not sure if there is any specific requirements for the ethernet cable. Is it necessary that only 1Gb CAT 5E cable can be used here?