Perplexing PPP Problem

Another Not So Anonymous Coward is pulling hair out over this issue: "I think this may not be the most appropriate forum for this, but I am at my wits end. I have been asking around and presenting this to the top minds I know, and it baffles all of them. So far, not a single person has been able to explain this, even on the Linux newsgroups. I am setting up PPP. And I have a problem. I am not a complete fool, so I know how to set up PPP correctly (Linux RH6.0, if you were wondering). Everything works perfectly, it connects, it pings it traces routes as far as the eye can see. But, if you ask for a http request, pppd gets a brain fart and starts acting like a mad man. I added the argument "record /tmp/ppp.log" to pppd to see what was happening, and I found the answer. Whenever I make a connection, pppd recieves the first 3-4000 characters of the page, I can see it in the log. I ususally get about 1/2 a page, BUT then it coughs. It waits a couple of seconds, and then STARTS OVER. It recieves again the first 3000 characters and hiccups again. So, I can use the web if I want to look at pages with less than 4000 characters, but anything more than that and it just hangs forever calling up the heads of web-pages. Does anybody have a clue as to why this is happening? (I know there is no porblems on the remote side becuase when I use windows 98, everything works peachy. It has to be my shiny new Linux box... grrrr!) " This sounds really odd. I admit that I'm stumped. Do any of you kind folks have any clues?

Re:Some questions - and one suggestion

[Royster]

What is the slashdot policy on trademark attributions?

It can be found at the bottom of every page. Ergo:

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HTTP Stall

[Julz]

Does the command line http transfer work okay?
I was wondering if it might be something to do with your browser.

Re:HTTP Stall

[rips]

Does FTP data seem to work?? When you say it stops and resends, have you had a look to see if its resending at the PPP level or at the TCP/IP level? If your socket is being disconnected at the TCP/IP level then I'd be trying a different browser or something at the application level. If not and FTP works, then I'm stumped too. :) Its hard to do much with the amount of information you've provided.

PPP or TCP

[snookums]

Is this perhaps some strange behaviour of the TCP layer? (or a bad interaction between PPP and TCP layers?) Do you have a packet trace of the connection? If you get one then you might be able to narrow down just who it is that is asking for the re-sends.

Hi, this is me, the original poster.

[clambake]

I found the solution, well, kind of. My MTU and MRU settings were fine, and I tried many different browsers. I was using pppd 2.3.7 (or whatever is standard issue with RH 6.0). I updated it to pppd 2.3.>9particular problem, so it is possible that whatever bug caused it may crop up again.

Thanks for all your help!

Whats your asyncmap setting? compression?

[TeddyR]

Try adding

asyncmap 200a0000

to the "extra options"


if the other side requires compression, you may want to try modprobing bsd_comp and/or ppp_deflate


https://www.mav.net/teddyr/syousif/ [mav.net]

I'll bet it doesn't happen on handcoded pages...

[Any_doom?_a_cow_runs]

...all these automatic pages are the only ones that have ever given me any trouble. Full of so much GARBAGE :) might confuse something.

I hand code the very few pages I do, and nary a problem with anyone.

Anonymous Coward, get it? :)