[USRP-users] cannot ping

Marcus Müller marcus.mueller at ettus.com
Tue Oct 3 07:58:17 EDT 2017


Sorry, I still don't understand – what circle are we talking about?


On 03.10.2017 06:50, seah chong wrote:
> sorry about that, the coverage networking is weak. IP Address PC A is
> 192.168.10.1 netmask 255.255.255.0. what i means with Omnidirectional
> is actually the communication between the USRP  is propagate within
> the circle.
>
> On Fri, Sep 29, 2017 at 11:31 AM, seah chong <seahchong12 at gmail.com
> <mailto:seahchong12 at gmail.com>> wrote:
>
>     hi
>     the computer connected to the device of USRP N210 using
>     Communication System Toolbox Support Packages. the device 
>     connected using the ethernet Cable. The first and second
>      USRP will communicate within omnidirectional.
>
>
>     />*> findsdru
>     Checking radio connections...
>
>     ans =
>
>          Platform: 'N200/N210/USRP2'
>         IPAddress: '192.168.10.2'
>         SerialNum: 'F5E4FF'*/*
>            Status: 'Success'*
>      
>     Both USRP N210 are successfully connected to the PC but unable
>     to communicate to each other.
>     I also try ip route get
>
>     */root at seah-Precision-T1700:~# ip route get 192.168.20.2
>     192.168.20.2 via 20.20.20.20 dev wlan1  src 20.20.20.103
>         cache
>     root at seah-Precision-T1700:~# ip route add 192.168.20.2 via
>     20.20.20.20/*
>     *
>     //*
>     */root at seah-Precision-T1700:~# route -n
>     Kernel IP routing table
>     Destination     Gateway         Genmask         Flags Metric
>     Ref    Use Iface
>     0.0.0.0         20.20.20.20     0.0.0.0         UG    0     
>     0        0 wlan1
>     20.20.20.0      0.0.0.0         255.255.255.0   U     9     
>     0        0 wlan1
>     192.168.10.0    0.0.0.0         255.255.255.0   U     0     
>     0        0 eth0
>     192.168.20.2    20.20.20.20     255.255.255.255 UGH   0     
>     0        0 wlan1
>     /*
>     *
>     //*
>     */root at seah-Precision-T1700:~# ping 192.168.20.2
>     PING 192.168.20.2 (192.168.20.2) 56(84) bytes of data.
>     ^C
>     --- 192.168.20.2 ping statistics ---
>     17 packets transmitted, 0 received, 100% packet loss, time 16128ms
>
>     root at seah-Precision-T1700:~# ping 20.20.20.20
>     PING 20.20.20.20 (20.20.20.20) 56(84) bytes of data.
>     64 bytes from /**/20.20.20.20/* <http://20.20.20.20/>*/:
>     icmp_seq=1 ttl=64 time=149 ms
>     64 bytes from /**/20.20.20.20/* <http://20.20.20.20/>*/:
>     icmp_seq=3 ttl=64 time=160 ms
>     64 bytes from /**/20.20.20.20/* <http://20.20.20.20/>*/:
>     icmp_seq=4 ttl=64 time=0.899 ms
>     ^C
>     --- 20.20.20.20 ping statistics ---
>     4 packets transmitted, 3 received, 25% packet loss, time 3002ms
>     rtt min/avg/max/mdev = 0.899/103.625/160.323/72.769 ms/*
>     *
>     | I attach figure  how the computer connected. I hope someone can
>     enlighten me and can give me the solutions.|
>     *
>     *||*
>
>     |Regards, |
>
>     |ChongSeah|
>
>
>     <https://mail.google.com/mail/?ui=2&ik=3bd8e0bae3&view=att&th=15ecbad4df75fc18&attid=0.1&disp=safe&realattid=f_j85c79vy0&zw>
>
>     On Wed, Sep 27, 2017 at 1:30 PM, seah chong <seahchong12 at gmail.com
>     <mailto:seahchong12 at gmail.com>> wrote:
>
>         hi
>         the computer connected to the device of USRP N210 using
>         Communication System Toolbox Support Packages. the device 
>         connected using the ethernet Cable. The first and second
>          USRP will communicate within omnidirectional.
>
>
>         />*> findsdru
>         Checking radio connections...
>
>         ans =
>
>              Platform: 'N200/N210/USRP2'
>             IPAddress: '192.168.10.2'
>             SerialNum: 'F5E4FF'*/*
>                Status: 'Success'*
>          
>         Both USRP N210 are successfully connected to the PC but unable
>         to communicate to each other.
>
>         *
>         |I hope someone can enlighten me and can give me the solutions.|
>         ||*
>
>         |Regards, |
>
>         |ChongSeah|
>
>
>         On Tue, Sep 26, 2017 at 9:14 PM, Leandro Echevarría
>         <leoechevarria at gmail.com <mailto:leoechevarria at gmail.com>> wrote:
>
>             Hello ChongSeah,
>
>             Can you explain a little more about what your network
>             configuration looks like? Maybe a drawing of all the
>             network interfaces with their respective IPs and subnet
>             masks may help us understand the problem better. 
>
>             How are the computers connected? And how are the N210s
>             connected to them?
>
>             Regards, 
>
>             Leo.
>
>             On Tue, Sep 26, 2017 at 6:00 AM seah chong via USRP-users
>             <usrp-users at lists.ettus.com
>             <mailto:usrp-users at lists.ettus.com>> wrote:
>
>                 hi all,
>
>                 i have two Pc with device USRP N210. At PC A the IP
>                 address  "192.168.10.1 netmask 255.255.255.0 and at PC
>                 B  the IP address "192.168.20.1 netmask 255.255.255.0.
>                 i also route add at the PC A using ip route add
>                 192.168.20.0/24 <http://192.168.20.0/24> via
>                 192.168.10.2 and at the PC B using ip route add
>                 192.168.10.0/24 <http://192.168.10.0/24> via
>                 192.168.20.2.But i cannot ping to PC B and same too
>                 goes to PC A.
>
>
>                 the error comes out like below
>
>                 /*root at seah-Precision-T1700:~# ping 192.168.20.2
>                 PING 192.168.20.2 (192.168.20.2) 56(84) bytes of data.
>                 ^C
>                 --- 192.168.20.2 ping statistics ---
>                 3 packets transmitted, 0 received, 100% packet loss,
>                 time 2016ms*/
>
>                 |I hope someone can enlighten me and can give me the
>                 solutions. |
>
>                 |Regards, |
>
>                 |ChongSeah |
>
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>
>
>
>

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