Put it another way, do you run a PPP client on your Linux/Windows box?
2. When you ran tcpdump/wireshark on your modem, were you watching an
Likely you were looking at a switch port, so you saw only broadcastQuote:> ?this question relates more to networking than to the Linux OS, but I may be able to troubleshoot (or somehow probe) these issues using Linux.
> ?One day I noticed that I only saw ARP traffic from my modem. My ISP (leasing lines from Verizon) keeps telling me that they don't know what I am talking about that if I run tcpdump/wireshark right on the modem, I should see all traffic in the network, not just ARP traffic and the traffic from/to my address.
> ?Why would that be?
We have three Linux systems on our network, but no Linux
administrator at the moment. We're seeing unusual behavior by these
three systems: whenever an ARP request shows up on the wire (say
system A looking for the owner of IP address B) the three Linux
systems then immediately generate arp requests for system A. This
effectively quadruples ARP broadcasts on the net, and for no gain that
I can see. Is there any way to turn off this behavior?
In addition, one of the three Linux systems appears to have a
very short arp timeout -- at least it generates at precise 1 minute
intervals a flurry of ARP requests. Is the arp timeout configurable?
Thanks in advance for any assistance you can provide!
Eric Ross Colorado College
(719) 389-6452 Colorado Springs, Colorado 80903
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