use wireshark to capture all network traffic

Type “rtp” in to the filter text box and click apply. Then click on Save at File menu (Figure 4). Figure 3 - Capturing When you wish to stop capturing process, click on Stop button. Figure 2 - Select the network interface Start the capturing process (Figure 3). Stop the capture and use the Filter to search for “rtp” and/or “sip” (lowercase only)Ģ. Figure 1 - Download Wireshark As the next step select the network interface via which you wish to capture the network packages (Figure 2). You should see data packets being captured in the Wireshark capture window Ensure that RTP and/or SIP Traffic is Being Capturedġ. Select the interface you wish to capture on (ie. Make sure that the phone system is powered on and is configured on the same network that you will be capturing traffic onģ. All Hubs are half duplex devices and most are 10mbps only devices.ġ.

A Hub cannot be used because the VoIP daughterboard requires a full duplex 100/1000 Ethernet connection.If this is a capture of a connection between a phone system and a VoIP phone, simultaneous real-time captures from both ends will be required for troubleshooting.A managed switch capable of port mirroring.Preferably a laptop with a 10/100 or 10/100/1000 Ethernet interface card.Half Duplex connections are not supported.NEC SL2100 KSU or NEC SL1100 KSU with VoIP daughterboard Card.This is a must-read for installers working with or troubleshooting VoIP issues. Wireshark allows you to capture and analyze VoIP network traffic and packet data from the NEC SL2100 and SL1100.

Use wireshark to capture all network traffic