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Re: Strange pppd behaviour in RH4.1 Linux



Alexander Indenbaum <baum@actcom.co.il> wrote:
|Yet, I must say that I use Linux for a long time and 
|and in same time I'm working in ISP and have a *LOT*
|of expiriance with SLIP/PPP, Unix. This meens that I
|read PPP-Howto in several editions for several platforms
|and know adantanges and disadvantages of setting MTU
|to be 1500 still find it the right thing to do. 
|
|Although I'm such an expert and smart guy :{) I can 
|not see  the reason why my ppp's connection speed 
|is only 19200.
|
|- it is not a modem hardware problem
|- my modem claims that it connects 38400

This sounds more like your modem is reporting the speed to the
computer.  Can you configure it (or verify its current configuration)
to report the speed it connects to the other side?

|- it is not an init string problem
|- it is not an ISP problem 
|- I get 3.6K rate with ppp in Win95/FreeBSD
|  and Linux slip on the same PC
|
|I think that it is probably pppd problem but what is it?
|I even added 38400 line to my /etc/ppp/options to force
|fast speed to my pppd still no results.

Under Linux, 38400 is a "magic speed" which may indicate higher speeds,
setserial should be used to say, for instance, that 38400 will actually
mean 115200.  Is it that way on your machine?

Secondly, it really sounds like the lack of "asyncmap 0" may cause this.
Do you have this line in your pppd optiots file?

--Amos

--Amos Shapira                    | "Of course Australia was marked for
133 Shlomo Ben-Yosef st.          |  glory, for its people had been chosen
Jerusalem 93 805                  |  by the finest judges in England."
ISRAEL             amos@dsi.co.il |                     -- Anonymous


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