I have Teltonika RUTM08 with RUTM_R_00.07.16.2 firmware.
Port forwarding timeouts in some cases. Especially when there are more similar requests (ie similar HTTP/S requests in a row, a lot of ftp operations in a row, …). The same issue goes for FTP. Entering passive mode takes a lot of time when the flow offloading is enabled.
This condition happens when SW and HW flow offloading is enabled or just SW flow offloading is enabled.
When these features are turned off everything works like a charm.
All attack prevention options are turned off. In the past I had a negative experience with DDoS preventions turned on with these kinds of requests.
The rest of the settings are basically in default state, except for the port forwarding options (ports for http/s and ftps + passive are forwarded).
Helper for passive ports is set manually.
Does any one else have a similar experience? I thought that SW/HW offloading should increase the throughput of the router and not decrease it.
Does turning the SW/HW offloading has any negative effect?
Is this a bug in the firmware?
Thank you