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Wrong user name & password Phone host PBX host SIPINVITE PROXY Authentication required ACK.When wireshark is launched we must ensure that correct interface is being used.It provides excellent tools to interpret the dataĮxposing VOIP problems VOIP suffers from three common problems > when a number is dialed, phone idles & no ringing is heard > only one party hears audio > missing conversation due to packet loss.VoIP involves complex setup protocols that wireshark can decode and relate.Troubleshooting VoIP network with other protocol analyzer software is costly.VOIP is affected by Latency, Jitter and Packet Loss.VoIP –Protocol Optimized for transmission of voice through Internet(IP telephoning).Also contains windows version of libPCap Unix APIĪpplications of Wireshark Exposing VOIP problems Supports Malware Detection Helps recognize DOS attack Downloading FLV files.Consists of library for easy access to low level network layers.Consists of a driver-extends OS to provide low level network access.Allows application to capture and transmit network packets by passing the protocol stack.Industries –standard tool for link layer network access in windows environment.It is cross-platform running on various OS (Linux, Mac OS X, Microsoft windows).
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Functionality is very similar to tcpdump.It is a packet sniffer Computer application.Overview Introduction to Wireshark Features Uses > detecting VOIP problems > downloading FLV files What it can’t do Conclusion Analyzing the operations of applications.Analyzing the performance of a network to discover bottlenecks.Troubleshooting problems on the network.Captures packets, decodes & analyzes contents.Computer s/w or h/w, intercepts & logs traffic passing over the network.Wireshark Presented By: Hiral Chhaya, Anvita Priyam
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