I've been trying to understand some network speed tests today, which started when I got a new ADSL connection that didn't appear to be performing properly with speedtest.net -- I was getting ~1Mbps from inside my network, instead of ~10Mbps that I get when connected directly to the ADSL modem.
I've managed to reduce the situation to a linux machine on either side of the pfSense 1.2.3 (on Alix 2D3), and using nuttcp I'm seeing radically different speeds depending on direction -- 55Mbps vs 1Mbps. At one side I have a laptop, connected to a 10/100 switch, connected to vr1 "ADSL" on pfSense (the "WAN" interface into a different upstream is currently sitting on aue0, a Belkin USB/UTP converter). On the other side I have a server directly cabled to vr0 "LAN". [laptop] ---switch--- [vr1:pfSense:vr0] ------ [server] I'm using nuttcp for speed tests. It's running on the server (nuttcp -S). On the laptop I invoke seem to be able to transmit/upload at <1Mbps, but receive/download at 55Mbps. > r...@dell1:~# nuttcp 10.43.0.2 > 1.7717 MB / 15.24 sec = 0.9751 Mbps 0 %TX 0 %RX 0 retrans 0.83 msRTT > r...@dell1:~# nuttcp -r 10.43.0.2 > 68.8281 MB / 10.12 sec = 57.0549 Mbps 0 %TX 6 %RX 0 retrans 0.98 msRTT I've been checking the interface configurations of everything :- laptop eth0 100Mb/s Full duplex pfSense vr1 "ADSL" 100baseTX <full-duplex> pfSense vr0 "LAN" 100baseTX <full-duplex> server wan 100Mb/s Full duplex I've just switched off NAT on the vr1 interface (probably shouldn't have been on anyway, I don't need it) but that made no difference. I'm not sure what is causing this asymmetry in speeds, and I suspect it is at the root of my user-level issue, which is where a PC "inside" the network can only get speedtest.net to report 1Mbps, whereas the laptop "outside" the firewall (connected to the ADSL modem) can get ~10Mbps from the same site. Can someone help me understand what's happening here, and suggest some tests/configurations that will help to make the network symmetric? -jim --------------------------------------------------------------------- To unsubscribe, e-mail: support-unsubscr...@pfsense.com For additional commands, e-mail: support-h...@pfsense.com Commercial support available - https://portal.pfsense.org
