Re: [coLinux-users] firewall nat setup problem

[Holger K. <hol...@gm...>]

Jerome schrieb:


> 
> And it's working fine so far except I noticed something really weird. 
> The coLinux system is running maintenance jobs also and one of them does 
> backups using FTP. And when coLinux starts to upload files to Internet, 
> all network traffic seems to be stuck (ie it's impossible to browse 
> Internet from Windows). There is no problem at all during parallel 
> downloads. Uploading trought FTP using the Windows system gives the same 
> issue. Of course the problem disappears when I connect the Windows 
> system to the DSL Modem. I don't know if the issue is related to coLinux 
> or iptables and I don't know what to do more to investigate.
> 
>  
> 
> I have another question related to my setup. I would like to know which 
> solution is better : WINPCAP or TAP + Windows native bridging ? I tried 
> both solutions but this didn't solve my problem.
> 
>  
> 
> I'm running coLinux dev (latest snapshot) ,debian sid, arno firewall rules.

Maybe it is not a problem, and the ftp transfers are just taking all the upload bandwith and not even tcp ack pakets go through for a parallel download. For testing, try limiting the used upload bandwith with scp -l "2/3 of your upload speed in kbit/s". 
If that helps you need bandwith shapeing, like in http://tldp.org/HOWTO/ADSL-Bandwidth-Management-HOWTO/