Network Monitoring and Analysis Solutions

Network validation before connecting end devices

NETSCOUT LinkRunner AT

To test that the DCHP and DNS is working correctly, you will have to initiate the DHCP process with a broadcast message to discover the DHCP servers in the broadcast domain. Normally there should be only one DHCP server in the broadcast domain... 

 

The DHCP server responds with an IP address and lease, and provides other information such as the subnet mask, and the IP address of the default gateway and DNS server.

Here is some information that may be provided when validating DHCP connectivity:

  • Server IP address and name of the DHCP server obtained in the discovery process.
  • Offer is the offered address accepted. 
  • Total Time is the total amount of time consumed by the DHCP discover, offer, request, and acknowledge process. 
  • Subnet Mask is the mask of the local IP address sent from the DHCP server.
  • Subnet ID is the combination of the subnet mask and the offered IP address (shown in CIDR notation). 
  • Lease Time is the amount of time that the IP address is valid. 
  • Expires is the accepted time plus the lease duration. 
  • Relay Agent - If a BOOTP DHCP relay agent is present, this shows its IP address. The relay agent relays DHCP messages between DHCP clients and DHCP servers on different IP networks. 
  • Offer 2 - If a second address has been offered by a backup DHCP server, it can be shown. 
  • MAC Address - The MAC address of the DHCP server.

 

With the LinkRunner AT, you can quickly validate DHCP service. Walk through the virtual demo to learn more about the LinkRunner AT Network Tester and how it can help you quickly rule out bad cable connections as a source of network trouble.

 

 

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Supplier

  • NetAlly

    For over 25 years, the team behind NetAlly have been the #1 ally of network professionals worldwide. They began by making the world’s first handheld network analyzer – the LANMeter ® – and have continued as industry pacesetters ever since, first under Fluke Networks ® then NETSCOUT ®.

    Popular most recent handheld network testtools (HNT) LinkRunner and AirCheck have now become part of the NetAlly brand. As an independent organization owned by private investment company StoneCalibre, NetAlly will now continue to set the standard for innovative network test solutions.

Related Blog messages

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    We are happy to invite you to our netAlly* seminar on Thursday October 24th.

    *netAlly is the new brand name of former Netscout handheld network test tools  

     

  • Het is een sport, ons doel én een verplichting om storingen zo snel mogelijk op te lossen

    De schermen en luidsprekers op de treinstations, de Wi-Fi Access points, de kaartverkoopmachines en de laptops van het personeel; alles in de treinstations en seinhuizen met een IP aansluiting, hangt in het netwerk waar Infrabel ICT verantwoordelijk voor is. Hoe Roland Bellem, security technology coördinator van Infrabel ICT, ondersteuning geeft opdat de lokale ICT ervoor zorgt dat het IP netwerk te allen tijde in topconditie is, vertelt hij ons graag!

  • LinkRunner and AirCheck now with NetAlly

    NetAlly Spins Out of NETSCOUT to Further Drive the Handheld Network Testing (HNT) portfolio. Company’s first product enhancements include AirCheck G2 Wi-Fi 6 (802.11ax) support and new Link-Live cloud platform updates that centralize tester management and data visibility for network engineers and technicians

    Colorado Springs, Colorado USA – August 14, 2019 – Today marks the launch of NetAlly®, a new company comprised of a team that has been developing highly recognized and respected brands of portable network test solutions for over 25 years. Formerly a business unit of NETSCOUT®, and previously part of Fluke Networks®, the company is now an independent provider of handheld testing solutions including the LinkRunner® Network Auto-Tester, AirCheck™ G2 Wireless Tester, ......

  • De Link-Live Cloud is vernieuwd!

    Probeer nu de volledig vernieuwde Link-Live Cloud repository!
    Link-Live is een gratis dienst welke is verbonden aan alle handheld netwerktesters van NetAlly. Testresultaten worden (optioneel) automatisch door de tools naar Link-Live geüpload en zijn hiermee gecentraliseerd gearchiveerd.

    Vendor change notes:
    1. Overhaul of our look and feel to follow modern standards...