Denis, Would you mind running the same test with OpenVPN 1.6.0 and see if you get the same behaviour?
Thanks, James Denis Vlasenko <v...@port.imtp.ilyichevsk.odessa.ua> said: > Hi folks, > > I know Linux well, but started to play with openvpn just yesterday. > > I am making tunnel between WinXP notebook and Linux desktop > over 10Mbit link. One switch is between them, no routers. > > Linux: 2.6.6 > WinXP: ver reports "5.1.2600" > > Linux side is compiled from source, Win side installed from > binary openvpn-2.0_beta1-install.exe > > I run openvpn --config cfg on both sides. > > Linux side config: > remote 1.1.1.3 > port 8000 > proto udp > dev tun > ifconfig 2.1.1.2 2.1.1.1 > secret key > ping 10 > verb 5 > mute 10 > > Key file is the same on both sides. > > WinXP side config is identical except: > remote 1.1.1.2 > ifconfig 2.1.1.1 2.1.1.2 > > Tunnel is established without problems. Then I stress test it > with three instances of large packet flood ping: > # ping -A -s1444 2.1.1.1 > > typically it looks like this: > CPU load eth in out tun in out > ================ ============== ============== > 20:21:42 cpu [SSSUUU....] eth0 379k 362k tun0 329k 333k > 20:21:43 cpu [SSSUUU....] eth0 357k 343k tun0 314k 316k > 20:21:44 cpu [SSSUU.....] eth0 276k 290k tun0 240k 267k > 20:21:45 cpu [U.........] eth0 97k 67k tun0 84k 61k > 20:21:46 cpu [SSD.......] eth0 60k 38k tun0 34k 34k > 20:21:47 cpu [SU........] eth0 158k 138k tun0 125k 126k > 20:21:48 cpu [SSSUUU....] eth0 299k 300k tun0 267k 277k > 20:21:49 cpu [SU........] eth0 126k 117k tun0 93k 107k > 20:21:50 cpu [U.........] eth0 24k 14k tun0 12k 12k > 20:21:51 cpu [SSU.......] eth0 29k 18k tun0 15k 15k > ... > and sometimes even: > 20:28:11 cpu [SSSUU.....] eth0 284k 289k tun0 263k 267k > 20:28:12 cpu [SSUU......] eth0 248k 307k tun0 230k 284k > 20:28:13 cpu [S.........] eth0 0 239k tun0 0 221k > 20:28:14 cpu [U.........] eth0 0 242k tun0 0 224k > 20:28:15 cpu [..........] eth0 0 240k tun0 0 222k > 20:28:16 cpu [SSU.......] eth0 0 239k tun0 0 221k > 20:28:17 cpu [..........] eth0 0 242k tun0 0 224k > 20:28:18 cpu [..........] eth0 0 244k tun0 0 225k > 20:28:19 cpu [..........] eth0 0 242k tun0 0 224k > 20:28:20 cpu [..........] eth0 0 240k tun0 0 222k > 20:28:21 cpu [SSU.......] eth0 12k 236k tun0 11k 218k > 20:28:22 cpu [SU........] eth0 113k 321k tun0 104k 299k > ... > i.e. XP side did not respond to pings! > I looked at 'networking' tab in TaskMan. I see that > incoming traffic for XP is larger that outgoing one, > this verifies that XP did receive those packets over > 'normal' interface. However, tunnel interface have > incoming==outgoing, always. Does XP tun drops > incoming packets?? > > CPU load on XP is ~75%, i.e. it does not hit 100% > > I tried pinging non-tunneled link with same ping. > It gives steady 0.5 Mbyte/s each way. No dropouts. > > To sum up: > * opnvpn bandwitdh vary too much. > * it doesn't reach ~0.5Mbyte/s. > * sometimes XP side drops packets. > > Are these problems known? Do you need more info? > How can I help? > -- > vda > > > > ------------------------------------------------------- > This SF.Net email is sponsored by: SourceForge.net Broadband > Sign-up now for SourceForge Broadband and get the fastest > 6.0/768 connection for only $19.95/mo for the first 3 months! > http://ads.osdn.com/?ad_id=2562&alloc_id=6184&op=click > _______________________________________________ > Openvpn-devel mailing list > Openvpn-devel@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/openvpn-devel > --
