I am running RedHat 7, Kernel 2.2.16-22. I have a FritzCard ISDN card
that is able to dial to the internet fine. How do I set it up so that
it will autmatically dial whenever I reference a web site?
Thanks,
David Suna
by Davi » Wed, 14 Feb 2001 18:23:49
Thanks,
David Suna
1. ISDN Dial-On-Demand: Can't Stop dial with arp packets...
Hello again everybody,
I have installed linux 2.0.30 (Slackware 3.3) on a machine located
remotely from my office connected with ISDN dial-on-demand modem. I
have diagnosed the dial-out of this machine with TCPDUMP to see why the
machine is dialing out for no reason every 6 minutes or so.
This is the packet that is received from tcp dump from remote host
(durham).
15:28:08.980232 arp who-has ryno.cit-llc.com tell durham.cit-llc.com
ryno is another linux machine on my LAN and durham is the machine on the
remote end that I would like to prevent from dialing out when this
happens.
Now, I ran into a similar problem in a previous version of linux and
modified the /usr/src/linux/net/ipv4/arp.c file and recompiling and
restarting the new kernel. This has not worked yet as I have tried
different values for the ARP_TIMEOUT and other variables in that file.
Not sure how I can prevent this dial-out from the remote machine.
In case it matters the ISDN boxes that I use are from COMBINET now owned
by Cisco. Maybe I can filter ARP packets from the ISDN modem?
All help is greatly appreciated. (I need to save money on this phone
bill).
TIA
Jim Valavanis
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