don't allow access to dhcp or dns servers

  • Thread starter Thread starter EN
  • Start date Start date
E

EN

I work at a school and sometimes teachers bring in their laptops and other
things to use our
network connection for their personal use, especially without telling us.
What I need to know is how can I disallow these outside computers from
gaining access to our DHCP server, as well as our DNS servers? If any
permission
changes are made to the DHCP/DNS servers, how will these changes affect the
pcs that I do want to have access to these servers?
Thanks for any information
 
I work at a school and sometimes teachers bring in their laptops and other
things to use our
network connection for their personal use, especially without telling us.
What I need to know is how can I disallow these outside computers from
gaining access to our DHCP server, as well as our DNS servers? If any
permission
changes are made to the DHCP/DNS servers, how will these changes affect the
pcs that I do want to have access to these servers?
Click to expand...

The best way is to have these laptops only access through a segemented
network with either it's own DHCP and DNS or passing through a
proxy/firewall. Otherwise you have to restrict access to the scopes
with reservations.

Jeff
 
DHCP does not have any built in security of this type. You could create DHCP
reservations for every one of your "authorized" clients and then exclude any
unreserved IP address left in your scope. When an "unauthorized" laptop
tried to get an IP address the DHCPserver would have none left to assign. Of
course this won't help if they look to see what IPs are used on your network
and statically assign their "unauthorized" laptops.
--

Thanks,
Marc Reynolds
Microsoft Technical Support

This posting is provided "AS IS" with no warranties, and confers no rights.
 
Back
Top