AudioCodes C470HD - Running Tcpdump

CHAPTER7 Troubleshooting
C470HD | Users & Administrator's Manual
Running Tcpdump
TcpdumpisacommonpacketanalyzerthatallowsnetworkadministratorstodisplayTCP/IP
and  other  packets  transmitted  or  received  over  the  IP  telephony  network,  for  debugging 
purposes.
➢ To run Tcpdump:
1. IntheAndroidPhoneUtility(seeAndroidPhoneUtilityonpage121formoreinformation
abouttheapplication),enterthephone'sIPaddress,clickSSH Connectandbrowsetoa
folderonthePCtowhichtosendtheinformation.
2. Nexttothe Tcpdump button,setthetimeperiodorleaveitatthedefault.Default:30
seconds.
3. Clickthe Tcpdump buttonandthenaftertheprogressindicatorreachestheendyou'llview
intheresultspanea'Finished'indication.
4. OpenthefolderonthePCtowhichyoucommandedtheapplicationtosendthe
informationandlocateandopenthefile'net.pcap'.
Alternatively,runTcpdumpwithouttheutility.
➢ To run tcpdump without the utility:
1. AccessthephoneviaSSHandrunthefollowingcommands:
setprop ac.ac_tcpdump.timeout <seconds>
2. Afterdefiningthecapturingtimeasshownintheprecedingcommand,startthecapture:
setprop ac.ac_tcpdump 1
3. Tcpdumpcapturefilewillappearinthislocation:
/sdcard/recording/net.pcap
4. AfterrunningTcpdump,reproducetheissue.
5. ExecutethefollowingcommandfromyourPCcommandprompt(cmd):
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