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Home » Forums » Forum Archives » Networking and Internet Sharing » Topic # 1783

Fire Wall Effect on Networking and ICS
donv Mar-21-02 07:04 PM
This was going to be a question 10 minutes ago, but now i post this for general information and to stop others suffering unneccessary grief.

I've four pcs (3x win98 1x win2k) sharing an internet connection, using windows ICS and a cable modem.

The host pc recently had a major crash out of the blue, everything went off, i now suspect a power spike or something - but that is not (at least not yet) the problem. This crash shot quite a few system files which were restored using the "file check" utility.

The host would (after some tinkering)connect to the internet, but try as i might the rest of the home network would not speak to the host or vice versa.

I thought the network card had blown and caused the crash so (hang the expense!) dashed out, spent my beer money and bought a new one, which was promptly installed, reconfigured and ICS reset up.

Guess what - no change. Could get previously mapped drives to read via win explorer, could see host in network neighbour hood on the clients, but nothing else - could not even ping host from any client or vice versa.

During all of this ZoneAlarm Pro (paid for by the way) was turned off but still installed on the host. Uninstalled it and ..... instant success.

I'm delighted the problems solved but very annoyed that I wasted so much time (and a little money), plus very angry kids with only access to one dial up account between three!!!, for three days (suspect it'll be a good excuse for late homework for a while).

ZAP should have a large warning on it about this.

Anyone know if Norton's firewall is any friendlier, cos i'm thinking of shelling out for that instead?!


1. RE: Fire Wall Effect on Networking and ICS
DJ Net2Infinity Mar-21-02 08:37 PM
In response to message 0
Zonealarm by far is the best firewall program, but as you now know just like I have had to learn the hard way it can hose up your connections.

I ALWAYS disable all virus programs, and would uninstall my firewall ( that is if I had one, which I don't). Why don't you save yourself the headache of Zonealarm and ICS and get a router for $100?


2. RE: Fire Wall Effect on Networking and ICS
donv Mar-22-02 05:49 PM
In response to message 1
I agree, router is the most effective technical solution, but the following limits my choice.

Cable modem is near one pc (down stairs) rest of network, including 100m/bit switch are upstairs. I don't feel too enthusiastic about taking up carpets, floorboards etc, etc, to re run the cables (+ cost of new cat 5 wiring).

Secondly an appropriate cheap router (e.g. Draytek Vigor 2200E) is 160 here, you can work out the conversion to $s !! My extra nic cost 15.

Currently ICS is working fine (again), wife and kids calmed down a bit!.

Thanks for your thoughts tho.

Don


3. RE: Fire Wall Effect on Networking and ICS
lbyard Mar-23-02 01:21 AM
In response to message 2
>Cable modem is near one pc (down stairs) rest of network, including 100m/bit switch are upstairs. I don't feel too enthusiastic about taking up carpets, floorboards etc, etc, to re run the cables (+ cost of new cat 5 wiring).

Plug the switch into the router and use the existing wires. Larry


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