Response time on Tinc VPNs, Bandwith on Tinc-VPN

[Johann Stieger]

Hello,

response time: how is it possible to increase the response time on Tinc VPNs. When I use tinc over a fast or giga-bit network connection the ping-response time is normally about 1800 to 2000 ms. Sometimes I get ping response times at about 2.500 to 3.000 ms over a normal Ethernet Connection or a television-cable connection within the same providers-network in the same city. The ping-time on the underlaying network connection is about 10 to 30 ms. So when I use Windows Remote Desktop it is terrible when I have to wait 2 or 3 seconds to wait for a response of the chance of the desktop. 

Bandwith: when I use tinc on a fast- or gigabit connection on the same Ethernet network (I have the same problem on a television-cable connection within the same providers-network in the same city) the speed is very slow. The new TAP-Win32 Adapter V9 tells me that there is a network speed of 10 Mbit/s but when I transfer data between two hosts the network is only used by up to 1,5 to 2,5 percent. So the speed is only 150 to 250 kbit/s which is very slow.

I use 3 Windows XP and one Windows Vista Notebooks as client and a Windows Small Business Server 2008 as server. On the client-side the config-file looks like this:
Interface=Tinc-VPN
AddressFamily=ipv4
Mode=switch
Name=TincKnoten_PM1860NB
PrivateKeyFile=C:/Programme/tinc/ESV/rsa_key.priv
ConnectTo=TincKnoten_remote
TCPOnly=yes

The "tinc-up.bat"-file looks like this:
netsh interface ip set address %INTERFACE% static 192.168.19.1 255.255.255.0

The file "TincKnoten_remote" on the client looks like this (without public key):
Address=Server's DNS-Name
Port=655
Subnet=192.168.19.8/32

Here is the content of the server's tinc.conf:
Interface=Tinc-VPN
AddressFamily=ipv4
Mode=switch
Name=TincKnoten_remote
PrivateKeyFile=C:/Program Files (x86)/tinc/ESV/rsa_key.priv TCPOnly=yes

The server's "tinc-up.bat"-file looks like this:
netsh interface ip set address Tinc-VPN static 192.168.19.8 255.255.255.0

The file "TincKnoten_PM1860NB" on the server looks like this (without public key):
Address=Some (not existent) DNS-Name
Port=655
Subnet=192.168.19.1/32
IndirectData=yes


I hope, somebody can help me to increase the response time and to increase the bandwith.

Thank's very much,

Johann Stieger