Is <compess-21> new/uncommon?

[NoHtmlMailsPlease]

I had been using the same pppd script from the 1990's , and then
I lost land-line dial-up access and had to get a fixed-wireless-modem,
and 'upgrade' to kernel 2.6*

After I learned how to connect the zeroCD USB connection, I realised
that if I could DOWNGRADE again, I'd have better response and HCI
with the old system.

But it complains about <can't find module for compress-21>.
`man pppd` mentions <compress-21>, but I was wondering why
my dialup managed ok for years.

So does the ISP negotiate and say that it needs <compress-21>?
And my system must them fetch and use the module ?

I'd much prefer to use the old faster system if I can just upgrade the pppd
and/or modules.

TIA,

== Chris Glur.

[R.L. Horn]

Post by NoHtmlMailsPlease
After I learned how to connect the zeroCD USB connection, I realised
that if I could DOWNGRADE again, I'd have better response and HCI
with the old system.

Downgrade from what (2.6.??) to what? More information is better.

Post by NoHtmlMailsPlease
But it complains about <can't find module for compress-21>.
`man pppd` mentions <compress-21>, but I was wondering why
my dialup managed ok for years.

It sounds like you need to add the following to your module configuration:

alias ppp-compress-21 bsd_comp
alias ppp-compress-24 ppp_deflate
alias ppp-compress-26 ppp_deflate

Note that "conf.modules" and "modules.conf" have been deprecated for ages
(recent versions of module-init-tools are able to figure out most things on
their own). One or the other may have been deleted when you upgraded, and
may now have to be rebuilt from scratch or restored from a backup.

[James Carlson]

Post by NoHtmlMailsPlease
But it complains about <can't find module for compress-21>.
`man pppd` mentions <compress-21>, but I was wondering why
my dialup managed ok for years.

  alias ppp-compress-21 bsd_comp
  alias ppp-compress-24 ppp_deflate
  alias ppp-compress-26 ppp_deflate
Note that "conf.modules" and "modules.conf" have been deprecated for ages
(recent versions of module-init-tools are able to figure out most things on
their own).  One or the other may have been deleted when you upgraded, and
may now have to be rebuilt from scratch or restored from a backup.

Also note that it's extremely unlikely that your ISP actually supports
any of those options.
ISPs don't normally support data compression and, when they do, they
typically
support only the Windows-specific compression mechanisms, and not the
open source
BSD Compress and Deflate (gzip) options.

So, just saying "noccp" in your options should get rid of the unwanted
messages.

If you're having trouble connecting, please post complete debug logs
and more
information about your pppd configuration.