# Hostapd: enable SHA256-based algorithms **URL:** \ **Category:** Installing and Using OpenWrt\ **Created:** [January 4, 2017, 2:17pm UTC](https://forum.openwrt.org/t/hostapd-enable-sha256-based-algorithms/803 "2017-01-04T14:17:03Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![northbound](https://forum.openwrt.org/user_avatar/forum.openwrt.org/northbound/32/3178_2.png) [@northbound](https://forum.openwrt.org/u/northbound)\ **Post date:** [January 18, 2017, 3:09am UTC](https://forum.openwrt.org/t/hostapd-enable-sha256-based-algorithms/803/4 "2017-01-18T03:09:08Z")
This is not ready for prime time at least for a 1900ac v1 Mamba. It does prevent de-authentication but slows transfer massively. iperf3 -c 192.168.1.183 -P6 -t 120 With ieee80211w [SUM] 0.00-120.00 sec 1.47 GBytes 105 Mbits/sec 52 sender [SUM] 0.00-120.00 sec 1.47 GBytes 105 Mbits/sec receiver without ieee80211w [SUM] 0.00-120.01 sec 5.45 GBytes 390 Mbits/sec 31 sender [SUM] 0.00-120.01 sec 5.44 GBytes 390 Mbits/sec receiver iperf3 -c 192.168.1.183 -P6 -t 120 -R With ieee80211w [SUM] 0.00-120.00 sec 1.64 GBytes 117 Mbits/sec sender [SUM] 0.00-120.00 sec 1.63 GBytes 117 Mbits/sec receiver without ieee80211w [SUM] 0.00-120.00 sec 5.67 GBytes 406 Mbits/sec sender [SUM] 0.00-120.00 sec 5.67 GBytes 406 Mbits/sec receiver ############################################################################################# With 80211w and router as iperf3 server C:\iperf3\>iperf3 -c 192.168.1.1 -P6 -t 120 [SUM] 0.00-120.01 sec 610 MBytes 42.7 Mbits/sec sender [SUM] 0.00-120.01 sec 610 MBytes 42.6 Mbits/sec receiver without ieee80211w [SUM] 0.00-120.00 sec 6.10 GBytes 436 Mbits/sec sender [SUM] 0.00-120.00 sec 6.10 GBytes 436 Mbits/sec receiver C:\iperf3\>iperf3 -c 192.168.1.1 -P6 -t 120 -R With ieee80211w [SUM] 0.00-120.00 sec 305 MBytes 21.3 Mbits/sec 43 sender [SUM] 0.00-120.00 sec 304 MBytes 21.3 Mbits/sec receiver Without ieee80211w [SUM] 0.00-120.00 sec 5.39 GBytes 386 Mbits/sec 40 sender [SUM] 0.00-120.00 sec 5.39 GBytes 386 Mbits/sec receiver --- _[View the full topic](https://forum.openwrt.org/t/hostapd-enable-sha256-based-algorithms/803)._