Agent-IC - How to Verify Port Forwarding is Working
- John Ferrante
This application note will describe how to use Wireshark and a Sharktap to verify that port forwarding has been set up correctly at the firewall.
Wireshark is a powerful freeware tool that allows in-depth analysis of IP connections. It can be downloaded here:
–https://www.wireshark.org/#download
A Sharktap is a useful hardware interface designed to be used with Wireshark to monitor traffic on a single link. More info on the Sharktap here:
–http://www.midbittech.com/index.html
Alternatively, port mirroring can be set up on a manged switch to achieve the same result as the Sharktap.
In order for Agent-IC to work using public internet, a port on the firewall must be opened. The default port is 6001, and a port forwarding rule needs to be in place to forward traffic on port 6001 to the internal address of the IVC-32 card, or the IVC port on the E-IPA card. 6001 is just the default, and other unused ports may be used if necessary. If the default port is changed, it must be changed in the Agent-IC settings on the mobile device, and also in EHX. In the example below, we will use port 6002.
When you open Wireshark, it will take you to this page:
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