[2921] in linux-net channel archive
Re: How do I get fixed and dynamic ppp
daemon@ATHENA.MIT.EDU (Jon Lewis)
Thu May 16 00:36:15 1996
Date: Wed, 15 May 1996 22:55:11 -0400 (EDT)
From: Jon Lewis <jlewis@inorganic5.fdt.net>
To: root <root@gallifrey.taranaki.ac.nz>
cc: linux-net@vger.rutgers.edu
In-Reply-To: <199605140602.SAA04956@gallifrey>
On Tue, 14 May 1996, root wrote:
> We run a small internet service here and have provided dialin ppp with an
> assigned ip address based on the tty line one connects to using
> /etc/ppp/options.ttyCxx files to assign the ip address. We now have a
> customer who want to have a fixed ip address but starting up pppd with a
> command line option 204.15.67.123:204.15.67.1 doesn't seem to override
> the equivalent in the options file. Has anyone got a clever solution?
This is a fragment of a perl script I wrote for reading the IP address
from /etc/slip.tty. We support SLIP and PPP. You could use this, and
then check for certain usernames, and assign a static address for those
usernames.
It should be rather obvious how it works.
sub getip {
local($userdev)=@_;
$userdev = "/dev/$userdev";
open(IN,'/etc/slip.tty');
while (<IN>) {
($dev,$ip)=split(/\s+/,$_);
if ($dev eq $userdev) {
close(IN);
return($ip);
}
}
}
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