On Mon, 18 Oct 1999, Clifford Kite wrote:
> On Mon, 18 Oct 1999, Rajiv Ghai wrote:
>
> |Can anyone help me with working ppp compression settings to be used in the
> |/etc/ppp/options file. I am dialing in to a RH6.0 linux box from a Win98
> |client. The Win98 client has compression and error control enabled. Is this
> |sufficient for data compression or does one also need to specify additional
> |lines in the /etc/ppp/options file ?. I have read the pppd man page which
> |gives all kinds of compression settings to be used but I wanted to know
> |which of these, if any, of these are actually needed.
>
> Linux pppd and the MS PPP products have no common CCP -data compression-
> algorithms in common. It's better to disable it in both rather than to
> uselessly negotiate.
>
> I'm not sure what enabling "error control" means regarding PPP since a type
> of CRC is a part of the PPP specification and don't use MS anymore.
I believe MS provides options for VJ header compression and modem (not
PPP) compression and error control protocols. As Clifford says, MS does
not support the deflate or BSD data compression options.
I believe leaving the compression/error control options enabled in Win9x
is a good idea unless you have problems making a connection. You can use
'noccp' in Linux pppd (v2.3.x) to disable deflate/BSD compression
negotiation, but it is usually not necessary (see the pppd man page).
Geof Goodrum
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