Re: [Discuss-gnuradio] Cannot ping the usrp

Hi Vinit,

Use `ip addr show` or `ifconfig` to check what your current ip address is. If you're on an Ubuntu system the Network Manager often overrides your custom settings. You'll need to setup a connection with a static IP using Network Manager rather than ifconfig if this is the case.

If you are fairly comfortable with Linux then here's another option. I use the following script to automatically add the USRP subnet when I connect to the local network. This allows me access to both the wider LAN and to the USRPs simultaneously on a single network interface. If you don't understand what the script is doing though I'd recommend using the Network Manager as you're less likely to encounter issues.

/etc/network/if-up.d/add-usrp-subnet.sh

#!/bin/bash                        if [[ `nmcli connection show --active | grep 'Lab LAN'` ]]  then      ip addr add 192.168.10.5/24 dev enp0s25  fi

The network name can be determined with nmcli connection show --active when connected to the local network. The device name is shown at the end. For example:

[dkozel@T430s ~] nmcli connection show --active  NAME        UUID                                  TYPE            DEVICE    Lab LAN     5b0c59d0-3c9b-420f-9645-a425862e1088  802-3-ethernet  enp0s25 

For earlier versions of Network Manger the command is nmcli connection status.

Hopefully this is helpful. Also, this again is a USRP question (Linux networking actually), so would be better on the USRP-users mailing list.

Regards,

Derek

On Mon, Apr 11, 2016 at 2:55 PM, Vinit Shah <tug14467@temple.edu> wrote:

I first configured everything and installed uhd and gnuradio using pybombs, I faced this of problem of not able to ping my usrp device.. Then I set Host address and mask to 192.168.10.1 and 255.255.255.0 in edit connection....ethernet...manual ipv4....

And everything was working fine..

But from suddenly My computer is again not able to detect the usrp device.

I have tried sudo ifconfig eth0 192.168.10.1; and then ping to my usrp address..

not working ..

My ethernet cable works fine..

Please can anybody tell me what the reasons could be ?

-Vinit

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