Squid keeps opening my ISDN link

I'm using Squid 2.2Stable4 on a Red Hat 6.0 system. My Internet link is via
an ISDN router.

My network is actually extremely small, consisting of 2 machines only. I
often notice after a session surfing the Internet, that the router keeps
calling the ISP every 2 minutes (the router is set to disconnect after 1 1/2
minutes of no activity. The router monitoring program shows the source IP
address to be that of the machine running Squid, the destination port is 80
and the destination IP address is always the last web site that I've
visited. But this will go on and on after I've closed down any web browsers
running on the client PC's. Eventually it does stop (last time after about 8
minutes or so), but I haven't been monitoring this closely enough to tell
how long this will go on for. If I turn the router off, wait 5-10 minutes
and turn the router on again it won't happen until some other time after
I've been surfing. One guess could of course be that there is some element
of the visited web page that wasn't completely downloaded, but in all cases
my browser has been satisfied that the complete page was downloaded. Living
in Denmark, every call to the ISP costs money, and Squid was actually
supposed to make the Internet faster and cheaper. What might be causing
this?

Bjorn Graabek
Received on Tue Jan 11 2000 - 12:23:28 MST