Hail the conquering hero! Color me dumbfounded. Disabling TCP timestamps actually allows me to connect to Google. Reenabling them re-introduces the problem.
The only question still remaining is "why"? I have up on the site two captures. One of the working session, and one of the not working session. To me, this still looks like a kernel bug. Get them: http://www.shemesh.biz/connection/working.dump http://www.shemesh.biz/connection/notworking.dump Ideas, anyone? Thanks, Shachar On 01/20/2013 10:59 PM, shimi wrote: > > > On Sun, Jan 20, 2013 at 9:49 PM, Shachar Shemesh <shac...@shemesh.biz > <mailto:shac...@shemesh.biz>> wrote: > > Hi all, > > I have a really strange problem. On one of the computers in my > house, parts of the internet keep on disappearing. Sometimes half > the internet is inaccessible, and sometimes it's just a couple of > sites (google is a favorite for this problem). > > This is, most definitely, NOT a router or ISP problem. Other > computers on the same network are working fine. A virtual machine > connecting via a bridge on the same network is working fine (via > NAT it does not). > > Bringing the interface down and back up does not help. > > Existing connections remain connected, without a problem. > > The only thing that restores connectivity is rebooting (!!) > > There is nothing out of the ordinary in the routing table. > > Ideas? > > > > Does ping work when the internet is 'down'? If so, I would go for: > > TCP Timestamps, TCP SYN Cookies, Selective ACKs, Window Scaling > > try eliminating all of them ;) > > -- Shimi > > > _______________________________________________ > Linux-il mailing list > Linux-il@cs.huji.ac.il > http://mailman.cs.huji.ac.il/mailman/listinfo/linux-il -- Shachar Shemesh
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