Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.

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SSL VPN Performance is horrible using TCP or UDP

Shawn Adams

We have 2 XG330 in HA, a 300Mbit connection and are using the SFOS 20.0.0 GA-Build222 firmware with Sophos Connect.

Using the SSL VPN with UDP we are seeing speeds of 3.6Mbit down and 6.9Mbit up.  The Client has 100Mbit.

I've read a lot of different threads here regarding this issue, most of them are older than 2 years and most of them do not have an acceptable answer to this problem other than to switch the people who need a faster connection to IPSEC.

If anyone has any ideas I'll be glad to hear them.



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    Hi   - Without setting up the SSLVPN tunnel between the client and the XG, can you configure a DNAt rule on the XGS and do the perf test(you can use iperf) to the server behind the XGS and check what's the speed we are getting ?

    With this test - we will confirm, with the path being the same, what's the difference in throughput, with and without tunnel.

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  • 0

    Hi   - Without setting up the SSLVPN tunnel between the client and the XG, can you configure a DNAt rule on the XGS and do the perf test(you can use iperf) to the server behind the XGS and check what's the speed we are getting ?

    With this test - we will confirm, with the path being the same, what's the difference in throughput, with and without tunnel.

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