Diagnostic Tools

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The Ecessa device contains utilities to help troubleshoot issues with a network. 


The Ping Utility allows a user to establish which hosts on the network are accessible. This utility attempts to communicate with a given host by sending an ICMP request to the host. In order for the host to respond, the host needs to allow ICMP.

Troubleshooting capabilities of this utility:

  • Determine if a Host is Up/Down
  • Calculate how long it take to reach the host from the Ecessa device.
  • Verify that a host is accessible over all the necessary interfaces.

ARP Cache

This utility shows the current ARP entries on the Ecessa device. When a device is establishing a destination IP Address, it will firstly use the ARP protocol to figure out who it should communicate with. The device on the network that has that address will respond showing that it has that address. This utility shows the state of each ARP entry that it knows about.

Below are the descriptions of the possible ARP states:

PERMANENT Never Expires/ Never verified
NOARP Normal Expiration/ Never verified
REACHABLE Normal Expiration
STALE Usable/ Needs verification
DELAY Schedule ARP request/ Needs verification
PROBE Sending ARP request
INCOMPLETE First ARP request sent
FAILED No response received

Interface List

This utility shows the current information for each Ethernet Port on the Ecessa device. Each Port will show the MAC Address as well as every IP Address listed on the Ecessa Device. This utility also shows whether there is a link detected on each port. If there is not a link detected, this means that either a cable is not plugged in, or the device that is plugged into that port is not functioning correctly.

Troubleshooting capabilities of this utility:

  • For certain network issues, the problem can be that the host behind or in front of the Ecessa device is trying to access the wrong MAC address on the Ecessa device. This can be used to verify that the MAC address that the host is going to is correct.
  • When there are network issues, verify that there is a link detected for the interface that you are troubleshooting.


The Ecessa device has a DHCP server which can assign addresses based on the LAN DHCP configuration. This utility also shows which addresses have already been assigned. Using this utility a user can view which addresses are assigned to which IP Address.

This utility is helpful when a user wants to assign a specific device on a network a static IP. For example, when a network printer is initially setup it is configured for DHCP, the printer will then communicate with the Ecessa device and receive an address. Using this utility a user can specify an IP address for that printer and that IP will be assigned by the DHCP server each time the printer requests and IP. In order to do this, click Generate then find the device’s MAC address and click Create Static. If you then go to the LAN configuration page and click Advanced for the specific LAN, there will be a Static DHCP IP entry for the entry you have set up.

Current Sessions

This utility is designed to provide the current sessions on the Ecessa device. All traffic that goes through the Ecessa device is kept track of as a session. Each network session contains information about the traffic destination and location and also how much network bandwidth the session has used.

Troubleshooting capabilities of this utility:

  • Determine if a specific session is going over the correct WAN line.

Traffic Dump

This utility is designed to show the current traffic that is going through a designated interface on the device.

Looking at the traffic that is going through the Ecessa device can be very helpful when a user is troubleshooting an issue with their network. This utility looks at the traffic based on the Interface Port that is specified.

It is highly recommended to write a Filter rule for the type of traffic you are troubleshooting. The filter string needs to be in the form of a tcpdump.

Filter String Examples:

  • To see traffic for host use: host
  • To see traffic for host or use: host or
  • To only see Ping traffic use: icmp
  • To only see Ping traffic for the address use: icmp and host
  • To only see ARP use: arp

Once the traffic is collected, the traffic data can be downloaded for more detailed examination.

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