On Thu, Dec 17, 2009 at 12:21:25AM +0100, Johann Stieger wrote: > 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. [...] > 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: [...] > Mode=switch > TCPOnly=yes
Try running tinc without TCPOnly = yes. If you force TCP, then all traffic will go through a single TCP connection, which can indeed significantly decrease performance. The reason is explained here: http://sites.inka.de/~W1011/devel/tcp-tcp.html If you are not already using tinc 1.0.11, please upgrade. Also, add the following to the host config files: PMTUDiscovery = yes This will let tinc automatically determine the maximum size for UDP packets without fragmentation between nodes, and if UDP traffic is impossible, it will automatically fall back to TCP. -- Met vriendelijke groet / with kind regards, Guus Sliepen <[email protected]>
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