#602 closed Bug / Defect (notabug)
Buffer size bug
Reported by: | kxmp | Owned by: | |
---|---|---|---|
Priority: | major | Milestone: | |
Component: | Networking | Version: | OpenVPN 2.3.8 (Community Ed) |
Severity: | Not set (select this one, unless your'e a OpenVPN developer) | Keywords: | buffer siez limit |
Cc: |
Description
On linux I can't set buffer by set sndbuf/rcvbuf in config file, and it just use my system's setting.
I set sndbuf 10485760 on server and got
Tue Sep 1 15:26:09 2015 Socket Buffers: R=[6250000->6250000] S=[6250000->6250000]
Is it can't bigger than system's buffer?
And on win7 I can't set buffer > 999999.
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these are limits imposed by the operating system. OpenVPN asks for a larger buffer, but the OS will only accept 6250000 or 999999 - most likely there are sysctl values to increase this limit, but this is outside OpenVPNs control - and you shouldn't need more than 6 MB of socket buffer anyway, typical sizes are in the 32kbyte to 128kbyte ballpark.