Hi!
I've just configured my linux router for dial on demand!
Started out with RedHat 5.1 and found that allthough pppd 2.3.5 supports "demand", the
kernel didn't. Upgraded to RH5.2 and was disappointed once more. Then I learned that
the source kernel (the tar'ed and gzip'ed - the real thing) 2.0.36 and above supports
"demand". I got the kernel source 2.2.1 - compiled it and installed it into my RH5.2
and now I'm a "dial on demand guy". Diald is not needed.
Allthough I for now just have configured only ppp0, but with a different IP-address
from the eth0, I think it will work fine configuring several ppp's. You should beware
that "demand" requires configuration of remote IP-address. I guess otherwise it
wouldn't be possible to resolve which link to establish. (If someone thinks I'm wrong
on this - please speak up!) By the way: The pppd supports locks and when the line is
down there is no lock!
Have a nice day!
Hans
> I'm attempting to construct a communications server on a Linux 2.0.36
> box, running pppd 2.3.5. The ppp driver in the kernel is FILEVERSION
> 980512.
>
> This system must initiate outgoing ppp links to multiple target
> systems, both Unix and NT. Ultimately, it must handle 128 or more
> simultaneous connections.
>
> Currently, I can manually initiate connections to both Unix and NT ppp
> "servers". I am now trying to determine how I can do this on demand,
> in response to network packets destined for the target systems.
>
> I've read everything I can find on Linux pppd's 'demand' option and on
> the diald package. It seems that these are geared towards managing a
> single, predefined ppp link, such as an Internet connection. While
> these are certainly valuable services, I don't see them scaling well
> for my application.
>
> Are there other solutions for establishing connections on demand? I'd
> appreciate it if people would share their thoughts and experiences
> with this type of setup. Thanks.
>
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