Re: ping - Something is blocking ICMP (ping) packets.
Could be your cellular network operator, or perhaps even the firmware.
Re: getByName - Does your application have android.permission.INTERNET
in the manifest?
-- Kostya
30.11.2010 12:48, aad пишет:
Hi,
I need to resolve an host address to ip.
My android device can ping to the hostname only to resolve the host to
IP . But when I use InetAddress.getByname, it throws an exception.
An excerpt of hyper terminal trace is below.
Please help me resolve this issue by letteing me know which api i must
use as ping is only having DNS resolution but not successful packet
transmission.
Trace:
# ping -c 2 www.google.com
PING www.l.google.com (209.85.132.104) 56(84) bytes of data.
^C
^C
--- www.l.google.com ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1006ms
# #
#
# # ping -c 2 www.yahoo.com
PING any-fp.wa1.b.yahoo.com (67.195.160.76) 56(84) bytes of data.
^C
--- any-fp.wa1.b.yahoo.com ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1006ms
# ping -c 2 www.starwave.com
PING starwave.com (199.181.132.250) 56(84) bytes of data.
--- starwave.com ping statistics ---
2 packets transmitted, 0 received, 100% packet loss, time 1007ms
#
#
The trace of exception by InetAddress.getByname:
------------------------------------------------------
W/Server( 1122): Connection error: W/Server( 1122):
java.net.UnknownHostException: starwave.com W/Server( 1122): at
java.net.InetAddress.lookupHostByName(InetAddress.java:504) W/
Server( 1122): at
java.net.InetAddress.getAllByNameImpl(InetAddress.java:280) W/
Server( 1122): at java.net.InetAddress.getByName(InetAddress.java:310)
W/Server( 1122): at android..config.Config.getSLPHost(Config.java:169)
W/Server( 1122): at com.android.server.Server.run(Server.java:211) W/
Server( 1122): at java.lang.Thread.run(Thread.java:1096)
Thanks in advance for your time
Regards,
GSA
--
Kostya Vasilyev -- WiFi Manager + pretty widget -- http://kmansoft.wordpress.com
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