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I'm looking for a command (or command line program) to toggle (disable/enable) internet access to the outside world in Windows XP machines. It should temporarily block internet access but leave the LAN working.
I looked for ways to change the DNS, but browsers like Chrome keep their own cache. The machines are configured via DHCP.
You have Wireless network ? – Sepahrad Salour – 2013-04-23T12:16:23.947
What sort of environment? – Austin T French – 2013-04-23T13:58:23.237
Actually it's computer class. I would like to use iTalc (http://italc.sourceforge.net/) to issue a command to all computers to disable Internet. At same time leaving local network working. Could block Internet at router/switch level but teachers should not have access to router. Wired by cable.
– user219175 – 2013-04-24T08:09:09.007possible duplicate of allowing local network access while blocking internet access
– Ƭᴇcʜιᴇ007 – 2013-07-15T11:19:05.800What is a firewall? --- The other question (linked by techie007) is already closed as a dupe of this, which is mildly confusing. – Ярослав Рахматуллин – 2013-07-18T01:23:26.163