Any recommendations for how to sniff my own box? Its not like I can put a linux box up with tcpdump since the W2K box has the modem on com1? CommView is $250 and says NIC or DIALUP, not RAS.
Even if I could identify the packets from the client, so what? I can't necessarly control the clients (there are many and outside of my administration) They probably have spyware from Kazaa trying to phone home every 2 minutes for all I know. I need a way for the HOST to dump the caller for mostly inactive or better yet not enough throughput to continue. I can't accept "only if the client is really quiet for 5 minutes".
You did get me thinking....why not set up a linux box for the modem with a NIC to the w2k box....I'm sure I could do this with a cron and polling the /dev/com1.....and with a old pc less than $250 even if I hire a linux geek to do it for me. I'll give points to someone that can provide working scripts for redhat 7.3 or 8.0 for a box with 2 nics and 2 modems for dialin ip that is routed/forwarded to a w2kbox. Assume my w2k is 192.168.1.222/255.255.255.
but seriously I was looking for a WinNt Net. Expert to tell me how to do this without resorting to a seperate open source box. Maybe someone can suggest a better place to ask this question. How could anybody be a ISP running microsoft if you can't handle this common problem? (answer, isp's are not running microsoft). Seems like asking the local Linux LUG for a contract job and pieceing together a old pc might be the better choice......
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by: kiranghagPosted on 2002-12-03 at 19:41:35ID: 7529192
get a sniffer and check what packets are being generated by the client.
some software have keep_alive option which keep sending some packets at intervals to avoid disconnection.
you can check for that using a sniffer.
commview is available which allows you to sniff nt dial up connections.
have a look
HTH