Linux/AM5728: Ping : Bad Address

Karthikeyan R

Expert 1410 points

Part Number: AM5728

Tool/software: Linux

Hi,

I m using AM5728 - processor-sdk-04.02.00.09. Cannot ping google.com

eth0 is up now in my device. below is the detail

eth0      Link encap:Ethernet HWaddr 34:03:DE:EC:06:AA
          inet addr:192.168.1.63 Bcast:192.168.1.255 Mask:255.255.255.0
          inet6 addr: fe80::3603:deff:feec:6aa%763860/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:2378 errors:0 dropped:0 overruns:0 frame:0
          TX packets:117 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:206019 (201.1 KiB) TX bytes:12396 (12.1 KiB)
          Interrupt:94

I can ping the locally connected devices in LAN.

root@am57xx-evm:~# ping 192.168.1.124
PING 192.168.1.124 (192.168.1.124): 56 data bytes
64 bytes from 192.168.1.124: seq=0 ttl=64 time=0.737 ms
64 bytes from 192.168.1.124: seq=1 ttl=64 time=0.477 ms
64 bytes from 192.168.1.124: seq=2 ttl=64 time=0.479 ms
64 bytes from 192.168.1.124: seq=3 ttl=64 time=0.451 ms
64 bytes from 192.168.1.124: seq=4 ttl=64 time=0.473 ms
^C
--- 192.168.1.124 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 0.451/0.523/0.737 ms
root@am57xx-evm:~#
root@am57xx-evm:~#

But, I cannot ping external networks.

root@am57xx-evm:~# ping google.com
ping: bad address 'google.com'
root@am57xx-evm:~#

Please provide the guidance to resolve this issue.

over 7 years ago

0 Dwarakesh Radhakrishnan over 7 years ago

Guru 13660 points

Hi,

Can you check if you are able to ping
# ping 8.8.8.8
# ping 8.8.4.4

0 Karthikeyan R over 7 years ago in reply to Dwarakesh Radhakrishnan

Expert 1410 points

Hi Dwarakesh,

Thanks for the reply.

root@am57xx-evm:~# ping 8.8.8.8
PING 8.8.8.8 (8.8.8.8): 56 data bytes
64 bytes from 8.8.8.8: seq=0 ttl=42 time=41.110 ms
64 bytes from 8.8.8.8: seq=1 ttl=42 time=40.443 ms
64 bytes from 8.8.8.8: seq=2 ttl=42 time=40.487 ms
64 bytes from 8.8.8.8: seq=3 ttl=42 time=40.530 ms
64 bytes from 8.8.8.8: seq=4 ttl=42 time=40.381 ms
^C
--- 8.8.8.8 ping statistics ---
5 packets transmitted, 5 packets received, 0% packet loss
round-trip min/avg/max = 40.381/40.590/41.110 ms
root@am57xx-evm:~#
root@am57xx-evm:~#
root@am57xx-evm:~#
root@am57xx-evm:~#
root@am57xx-evm:~# ping 8.8.4.4
PING 8.8.4.4 (8.8.4.4): 56 data bytes
64 bytes from 8.8.4.4: seq=0 ttl=113 time=43.003 ms
64 bytes from 8.8.4.4: seq=1 ttl=113 time=42.479 ms
64 bytes from 8.8.4.4: seq=2 ttl=113 time=42.472 ms
64 bytes from 8.8.4.4: seq=3 ttl=113 time=42.505 ms
^C
--- 8.8.4.4 ping statistics ---
4 packets transmitted, 4 packets received, 0% packet loss
round-trip min/avg/max = 42.472/42.614/43.003 ms
root@am57xx-evm:~#

I can able to ping those IPs.
Actually i tried adding those IPs in /etc/systemd/resolved.conf as follows
nameserver gateway_ip_address
nameserver 8.8.8.8
nameserver 8.8.4.4

but no effect. Any clues ?

0 Dwarakesh Radhakrishnan over 7 years ago in reply to Karthikeyan R

Guru 13660 points

Hi,

Can you try adding it in DNS field as mentioned here : www.freedesktop.org/.../resolved.conf.html

0 Schuyler Patton over 7 years ago in reply to Dwarakesh Radhakrishnan

TI__Mastermind 40730 points

Hi,

In addition to the link provided by Dwarakesh here is a link from another post in the TI forum similar to the issue that you are facing.

e2e post on adding an DNS

In the link also you will see a mention of that TI does not support beyond basic network connectivity. But others on the e2e forum have contributed answers to this question.

Thanks Dwarakesh for providing an answer!

Best Regards,

Schuyler

0 Karthikeyan R over 7 years ago in reply to Schuyler Patton

Expert 1410 points

Thanks Dwarakesh and Schuyler Patton. Its Working.

0 Dwarakesh Radhakrishnan over 7 years ago in reply to Karthikeyan R

Guru 13660 points

Good to know it is working

Thanks Schuyler Patton for the encouragement and the support.

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Linux/AM5728: Ping : Bad Address