Question

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Disable LAN acess but allow Internet through firewall rules?

By saurabh_2507 ·
I have some systems which are doubted to be infected with Trojan Win32/conficker. So I want to isolate those systems from locally accessing my other system in LAN to prevent trojan spreading. At the same time I want to allow the Internet access to remain open to the infected ones and all others also. I tried many combinations of rules but it is not happening. I have Dlink Di-524.

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All Answers

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Drop them from the domain/workgroup.

by seanferd In reply to Disable LAN acess but all ...

So they don't have access to each other.

But why not just take them off the network and clean them? They will only get worse the longer they are connected to the internet.

Once clean, get them updated. The patch for Conficker is like a year old.

http://www.google.com/search?ie=UTF-8&oe=utf-8&q=conficker+removal

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VERY URGENT WORK BEING DONE

by saurabh_2507 In reply to Drop them from the domain ...

We are developing a website & its very urgent. So we can't put them off the Internet. I know I can run Windows malicious software removal tool. But the sytems' resources already overloaded due to the designing work. As a temporary remedy to stop the spread of trojan I want to change firewall settings & that too from Dlink di-524.
It is ok if they can't access themselves or any other computers in the LAN. We want Internet access only. Since other computers are also using Internet so the only way out is to keep these 2 systems off the LAN access. Due to some other reasons I am not preferring to block them by making changes to the firewall of all other systems by going to each machine, one by one.

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go buy another cheap router

by CG IT In reply to VERY URGENT WORK BEING DO ...

Place all the suspected systems behind this router.

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