Tuesday, January 12, 2021

How to test UDP packet loss from Windows to VPN gateway

User with Cisco AnyConnect connecting to the ASA via ssl vpn have connectivity issues. Only few users in a particular country has the issue(not china). We have users connecting from all over Asia without any issue.

Now because we use DTLS, I suspect due to congestion/throttling, UDP is being dropped by the ISP. A simple ping test won't cut. Can't have iperf. Is there anything we can ask ask the user to check so that we can see whether UDP is being dropped?

Installing 3rd party applications on the users laptop might not be approved.



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