Date: Mon, 13 Apr 1998 17:16:38 +0000 From: dmaddox@scsn.net (Donald J. Maddox) To: rotel@indigo.ie, dmaddox@scsn.net, Frank Pawlak <fpawlak@execpc.com> Cc: questions@FreeBSD.ORG Subject: Re: Kernel PPP Message-ID: <19980413171638.50241@scsn.net> In-Reply-To: <199804132055.VAA07266@indigo.ie>; from Niall Smart on Mon, Apr 13, 1998 at 09:55:55PM %2B0000 References: <199804132055.VAA07266@indigo.ie>
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On Mon, Apr 13, 1998 at 09:55:55PM +0000, Niall Smart wrote:
> On Apr 13, 3:59pm, Donald J. Maddox wrote:
> } Subject: Re: Kernel PPP
> > On Mon, Apr 13, 1998 at 06:11:56PM +0000, Niall Smart wrote:
> > > On Apr 13, 12:01pm, Frank Pawlak wrote:
> > > } Subject: Re: Kernel PPP
> > > > On 13 Apr, Niall Smart wrote:
> > > > > On Apr 12, 6:09pm, Frank Pawlak wrote:
> > > > > } Subject: Kernel PPP
> > >
> >
> > Actually, pppd _does_ have a 'deflate' option...
>
> No, it doesn't. Thats "/usr/sbin/ppp", not "/usr/sbin/pppd"
Yes it does. From `man pppd`:
PPPD(8) PPPD(8)
NAME
pppd - Point to Point Protocol daemon
SYNOPSIS
pppd [ tty_name ] [ speed ] [ options ]
DESCRIPTION
The Point-to-Point Protocol (PPP) provides a method for
transmitting datagrams over serial point-to-point links.
PPP is composed of three parts: a method for encapsulating
datagrams over serial links, an extensible Link Control
Protocol (LCP), and a family of Network Control Protocols
(NCP) for establishing and configuring different network-
layer protocols.
.
.
<big snip>
.
.
deflate nr,nt
Request that the peer compress packets that it
sends, using the Deflate scheme, with a maximum
window size of 2**nr bytes, and agree to compress
packets sent to the peer with a maximum window size
of 2**nt bytes. If nt is not specified, it
defaults to the value given for nr. Values in the
range 8 to 15 may be used for nr and nt; larger
values give better compression but consume more
kernel memory for compression dictionaries. Alter-
natively, a value of 0 for nr or nt disables com-
pression in the corresponding direction. Use node-
flate or deflate 0 to disable Deflate compression
entirely. (Note: pppd requests Deflate compression
in preference to BSD-Compress if the peer can do
either.)
<big snip>
deflate nr,nt
Request that the peer compress packets that it
sends, using the Deflate scheme, with a maximum
window size of 2**nr bytes, and agree to compress
packets sent to the peer with a maximum window size
of 2**nt bytes. If nt is not specified, it
defaults to the value given for nr. Values in the
range 8 to 15 may be used for nr and nt; larger
values give better compression but consume more
kernel memory for compression dictionaries. Alter-
natively, a value of 0 for nr or nt disables com-
pression in the corresponding direction. Use node-
flate or deflate 0 to disable Deflate compression
entirely. (Note: pppd requests Deflate compression
in preference to BSD-Compress if the peer can do
either.)
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