On Mon, 2003-06-09 at 15:15, ScruLoose wrote: > > > Hey all, > > > > > > I'm trying to figure out whether I should be worried or not... > > > My machine is connected to a DSL-modem via a little router-box. The > > > router has the usual little LEDs on the front to indicate activity. > > > In the last couple of days, I've noticed unexplained flickerings of the > > > little LED. > > > > This is normal. You're on the same broadcast domain as other users. > > Hm. Perhaps I should have been more specific: > It's the LED specifically for the connection from *my* PC to the router > that's flickering... not the one for traffic to the cable-modem. > Also, I've been connected with the same setup for six months, and this > behaviour is new in the last couple of days. > > Now, as it happens I think I've isolated it to a poorly-configured > dhclient... But I'm glad to know about iptraf and ntop, I'll take a look > at them. > hi,
i have a similar situation with my cable modem, from the day i installed it. as far as i know, the cablemodem is like an ethernet bridge, and forwards all ethernet traffic to your pc. dsl modems (bridges) work in the same manner. i've ran tcpdump on my deb box, and i see a bunch of arp requests (which are tcp/ip's way of knowing which ip is bound to which mac address). i also see a bunch of broadcast traffic, like netbios stuff - people with file-sharing enabled. this may not be the case with you, since you mention possbile problems with the dhcp client. strangely, back in january when i switched from analog to digital cable - strickly tv-cable-box-speaking, i saw about a 50% reduction in this traffic! good luck, jason -- Jason M. Harvey [EMAIL PROTECTED] http://www.jharv.com
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