Monitor any node and view VoIP summary. VNQM can monitor any node that is relevant to your VoIP network. By expanding the given node trees, you can choose to monitor VoIP traffic down to the interface level. The VoIP network assessment tool can provide a number of default alerts, reports, and resources that allow you to monitor all of your VoIP. HOMER is part of the SIPCAPTURE stack: A robust, carrier-grade and modular VoIP and RTC Capture Framework for Analysis and Monitoring with native support for all major OSS Voice platforms and vendor-agnostic Capture agents.HOMER counts thousands of deployments worldwide including notorious industry vendors, voice network operators and fortune 500 enterprises, providing advanced search. Five free, dead-easy IP traffic monitoring tools. Wireshark also does VoIP analysis and can read/write many capture formats (tcpdump, Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog.

• Voip Traffic Monitoring Tool
• Voip Network Monitoring

Monitoring your network can be a real pain. First and foremost, what tool should you use? Everyone you ask will give you a different answer. Each answer will reflect a different set of requirements and, in some cases, fill completely different needs. Here are the five network monitors I prefer, based on two criteria: They're free (as in cost) and easy to use. You might not agree with the choices, but at the price point, you'd be hard pressed to find better solutions.

1: Wireshark

Wireshark (Figure A

Voip Traffic Monitoring Tool

) has always been my go-to monitor. When most other monitors fail to find what I want, Wireshark doesn't let me down. Wireshark is a cross-platform analyzer that does deep inspection of hundreds of protocols. It does live capture and capture save (for offline browsing), which can be viewed in GUI or tty mode. Wireshark also does VoIP analysis and can read/write many capture formats (tcpdump, Pcap NG, Catapult DCT2000, Cisco Secure IDS iplog, Microsoft Network Monitor, and many more).

Figure A

2: Angry IP Scanner

Angry IP Scanner (Figure B) is one of the easiest to use of all the IP scanners. It has a user-friendly GUI that can scan IP addresses (and their ports) in any range. Angry IP Scanner is cross platform and doesn't require installation, so you can use it as a portable scanner. It can get NetBIOS information, favorite IP address range, Web server detection, customizable openers, and much more. This little scanner makes use of mutlithreads, so it's going to be fairly fast. Source code is available on the download page.

Figure B

3: Zenmap

Zenmap (Figure C) is a graphical front end to the cross-platform Nmap tool. Nmap can scan huge networks, is portable, free, and well documented. It's one of the most powerful IP traffic monitors, but that power comes with a price: complexity. Zenmap takes Nmap and makes it more accessible to users who prefer to avoid the command line. That does not mean Zenmap is the easiest of the lot. You still need to use some commands. But Zenmap offers a powerful wizard-like tool to help you through the process.

Figure C

4: Colasoft Capsa Free

If you're an admin used to more Windows-like tools, Capsa Free (Figure D) might be the perfect tool for you. There are actually two versions of Capsa: paid and free. The free version should be enough in most cases. It provides an easy-to-use dashboard you can use to create various types of captures. Capsa Free also offers plenty of alarm configurations so you can be alerted when something occurs. And it can capture more than 300 network protocols, so you won't be missing out on anything with this free tool.

Figure D

5: EtherApe

EtherApe is a Linux-only tool and is molded after the classic etherman monitor. It's unique in that it offers an easy-to-use mapping of IP traffic on your network. It does this in real time and gives you a clear picture of the overall look of your network traffic. You can create filters (using pcap syntax) to make reading the map easier. As you can see in Figure E, a busy network can get rather challenging to read. EtherApe will display both the node and link color with the most-used protocol so it's easier to take a quick glance, even on a busy network.

Figure E

More tools?

Voip Network Monitoring

A lot of networking monitoring tools are out there, and some of them do more auditing than the tools listed here. But when you really need to know what's going on with your network, one of the above tools will do a great job.

Have you used any of these tools? What other free scanners have you tried?

100% Open-Source RTC Capture, Analysis and Monitoring

About

HOMER is part of the SIPCAPTURE stack: A robust, carrier-grade and modular VoIP and RTC Capture Framework for Analysis and Monitoring with native support for all major OSS Voice platforms and vendor-agnostic Capture agents. HOMER counts thousands of deployments worldwide including notorious industry vendors, voice network operators and fortune 500 enterprises, providing advanced search, end-to-end analysis and packet drill-down capabilities for ITSPs, VoIP Providers and Trunk Suppliers using and relying on VoIP services and RTC technologies - All 100% Open-Source

Main Features

• Capture Server

  Thousands of packets/sec
  Multiple database options
  Powerful UI Search/Filter
  Native Call-Flow & PCAP
  Statistic Charts & Analytics
  REST API & Widgets
  Multi-User LDAP, Radius
  Angular/JS User-Interface
  

• Capture Agent

  HEP3 Encapsulation
  Payload Encryption
  Payload Compression
  Modular Design
  SIP,RTP/RTCP,Logs,CDRs
  TLS Support
  Heavy-Duty, Prod. Ready
  Linux,Solaris,BSD/OSX,Win32
  

• Core

  HEP/EEP Protocol
  SIP Signaling
  RTCP Protocol
  RTCP-XR Protocol
  WebRTC Signaling
  LOG Collector
  Geo Mapping
  Docker Support
  

HEP/EEP Supported Platforms

HEP/EEP Encapsulation allows packet mirroring without altering the original IP datagram and header contents and provides flexible allocation of additional chunks containing additional arbitrary data and payloads.
HEP/EEP is natively supported in a growing number of VoIP and RTC platforms, including:

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