Very slow speed through TAP tunnel between Linux and Windows
Posted: Tue Aug 02, 2011 9:10 pm
Hello all,
Sorry for my english - it's not my native language.
I have the problem with TAP tunnel between Linux and Windows XP(&7). The tunnel provide Very low speed then i try transfer data over it. Speed about 50 kbyte/s, but i have connection from my ISP at 1500 kbit/s on Server side and 1000 kbit/s on Client side of tunnel. Connection going right - without any error messages. Configs are here:
Client:
Server:
I already test these positions:
1. Then i try transfer data between server and client without OpenVPN (FTP or SFTP) speed is OK.
2. Then i try transfer data between server and client through Open VPN TUN tunnel speed is OK too.
3. Then i try change MTU parameters at tunnel - speed is LOW, and i have a error message in process of connection.
In process of search solution for my problem, i find the opinion that said - problem in TAP driver for windows OS. Can it opinion be right? I can't find solution at this forum.
P.S.
Yes, I'am really need TAP tunnel. I can't use TUN because I need connections to all host of LAN behind OpenVPN server, but i can't change routing table at Gateway router (it is not OpenVPN server's host).
P.P.S.
Thanks to all, whosever answer. If this problem are solved - please, put the link to the topic.
Sorry for my english - it's not my native language.
I have the problem with TAP tunnel between Linux and Windows XP(&7). The tunnel provide Very low speed then i try transfer data over it. Speed about 50 kbyte/s, but i have connection from my ISP at 1500 kbit/s on Server side and 1000 kbit/s on Client side of tunnel. Connection going right - without any error messages. Configs are here:
Client:
Code: Select all
client
dev tap
remote XXX.XXX.XXX.XXX XXXX
proto udp
mtu-test
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
resolv-retry infinite
nobind
pull
comp-lzo
persist-key
persist-tun
verb 3
ca "....\\ca.crt"
cert "...\\f_client.crt"
key "...\\f_client.key"
tls-auth "...\\ta.key" 1
ns-cert-type server
auth SHA1
cipher AES-256-CBC
Code: Select all
daemon openvpn
writepid /var/openvpn/pid
status /var/openvpn/status 10
local 192.168.168.99
port 1194
proto udp
comp-lzo
ca /etc/openvpn/keys/ca.crt
cert /etc/openvpn/keys/server.crt
key /etc/openvpn/keys/server.key
dh /etc/openvpn/keys/dh1024.pem
tls-auth /etc/openvpn/keys/ta.key 0
dev tap0
server-bridge 192.168.168.200 255.255.255.0 192.168.168.201 192.168.168.250
mtu-test
tun-mtu 1500
tun-mtu-extra 32
mssfix 1450
keepalive 10 120
auth SHA1
cipher AES-256-CBC
max-clients 10
log-append /var/log/openvpn.log
verb 4
mute 20
user _openvpn
group _openvpn
chroot /var/empty
1. Then i try transfer data between server and client without OpenVPN (FTP or SFTP) speed is OK.
2. Then i try transfer data between server and client through Open VPN TUN tunnel speed is OK too.
3. Then i try change MTU parameters at tunnel - speed is LOW, and i have a error message in process of connection.
In process of search solution for my problem, i find the opinion that said - problem in TAP driver for windows OS. Can it opinion be right? I can't find solution at this forum.
P.S.
Yes, I'am really need TAP tunnel. I can't use TUN because I need connections to all host of LAN behind OpenVPN server, but i can't change routing table at Gateway router (it is not OpenVPN server's host).
P.P.S.
Thanks to all, whosever answer. If this problem are solved - please, put the link to the topic.