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[Openvpn-users] Speed Problems



Hi,

i encountered some kind of speed problems with openvpn. the problems 
occur on all enviroments i've tested.

2.6.16.20+
2.6.17.2+

latest debian sarge openvpn package
latest debian etch openvpn package

when i use openvpn for transfering files via ftp/samba i only get about 
40 mbit/sec (35-40 depends on cipher (AES, BF, none) and compression 
(on/off))
so it's regardless which cipher i use or with or without compression.

when i don't use openvpn i get about 80 mbit/sec and with netperf i get 
about 90 mbit/sec.

changing the mtu size doesn't matter, changing proto (tcp/udp) doesn't 
matter, changing device (tap/tun) doesn't matter.

here is my config (serverside):

local                   xxx.xxx.xxx.xxx
port                    xxxx
proto                   tcp
dev                     tun0

tls-server
ca                      /etc/openvpn/easy-rsa/keys/ca.crt
cert                    /etc/openvpn/easy-rsa/keys/server.crt
key                     /etc/openvpn/easy-rsa/keys/server.key
dh                      /etc/openvpn/easy-rsa/keys/dh1024.pem

server                  xxx.xxx.xxx.xxx 255.255.255.0
keepalive               10 120
ifconfig-pool-persist   /etc/openvpn/ipp.txt

cipher                  AES-128-CBC
comp-lzo                no

daemon                  server
user                    nobody
group                   nogroup
persist-key
persist-tun

status                  /var/log/openvpn/server-status.log
log-append              /var/log/openvpn/server.log
verb                    3
mute                    20

and the client config:

client
remote          xxx.xxx.xxx.xxx
port            xxxx
proto           tcp
dev             tun
resolv-retry	infinite
nobind

ca              wsca.crt
cert            ws.crt
key             ws.key

cipher		AES-128-CBC
comp-lzo	no

persist-key
persist-tun

verb 3
mute 20

do anyone have an idea?
thx Michael

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