Hello That would explain the error what I had one morning with the windows laptop (seems to be a separate issue). The reason why I think it's not a BGP related issue and it's happening on the 2.nd gateway is that most users were complaining about their mail access is not working, and the mail server is located in the DMZ between the 2. So the users from the LAN only have to go through this second gateway to get there. We rebooted the mail server many times, didn't really helped anything. All the users say they had no problem whatsoever using it from the internet. Fortunately when this was going on in november I made some packet dumps, by setting up port mirroring to the windows users port on the switch but I couldn't see anything strange. Here is a communication for example from a windows machine from the LAN with our mail server in the DMZ through SSL (webmail): http://tinypic.com/view.php?pic=2e204y0&s=8#.VL4ktd2Vvok Well I saw it myself when I sat there at their computer that roundcube just shows connection errors and interrupted messages beyond that their whole internet connection was cut off for minutes than suddenly come back. We looked everything like disabling power management on the nics, replacing the nics, plugging them to different switches, even replacing the whole pc didn't help. Also I tried to proxy them through a linux SQUID box which were in the same DMZ area as the mail server, that didn't help either. Sent: Monday, January 19, 2015 at 7:28 PM From: "Alan Goodman" <notifications@xxxxxxxxxxxxxxxxxxxxxxxx> To: "Stephan Alz" <stephan008@xxxxxxx>, lartc@xxxxxxxxxxxxxxx Subject: Re: High uptime linux router works for linux clients, windows clients act strange Hi Steven It would be useful for you to explain why you feel that the first router was causing issues. To me this sounds like a MTU related issue at the moment. Theoretically BGP route 1 allowed larger packets than BGP route 2. Linux boxes manages to do PMTU discovery but something prevented the Windows boxes from doing this and therefore their packets were dropped. Or something like this... Alan On 19/01/15 16:51, Stephan Alz wrote: <snip> > So about 2 months ago windows machines (WinXP-Win8) started acting strange, connections got interrupted, webpages didn't load for users. After weeks of investigation into this and going through all the components on our network I finally determined that this machine is the problem so as a workaround I installed another linux box and all the windowses using that as a default gateway right now. It is a workaround what I wouldn't like to leave in place forever. <snip> -- To unsubscribe from this list: send the line "unsubscribe lartc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
