Messages in this thread | | | Date | Thu, 03 Jul 2008 12:15:48 -0700 | From | "H. Peter Anvin" <> | Subject | Re: tcp/ip connect on demand |
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Jan Engelhardt wrote: > On Thursday 2008-07-03 20:28, H. Peter Anvin wrote: >> Jens-Michael Hoffmann wrote: >>> hi, >>> >>> what is the right way to implement a "connect on demand" feature? >>> Example: user types url in firefox and presses return. Then >>> the system should set up network devices and proceed as usual. >>> >>> Is there a hook in the kernel we can use? >> In the kernel, no. Nor do you need one; the best place to hook into this is >> probably the name service system (so you catch it on trying to look up >> hostnames.) >> >> Alternatively, you can set up a bridge device which you can listen to via a tap >> device; when you see traffic, you bring up the real network and attach it to >> the bridge. > > There is on-demand for PPP devices; though that is probably specific > to PPP.
Yes, those monitor traffic at the PPP device port, I believe.
-hpa
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