Separate guest users to a specific set of IP address from non guest for identification later in web access

[fred_sales]

I am trying to find a way to isolate all users that come
thru a GUEST access, to a specific set of IP address So when our Barracuda web filter see’s the originating address it can be told to allow full unrestricted access.  I am trying to do this while keeping our regular domain users authenticated thru our domain filtered as usual.  We are a school and several times a month Sales people and or Parents require full internet access.   Any assistance on this matter would be appreciated.

[john_d]

This functionality is best implemented via having separate VLANs, and assigning the guest network a different VLAN ID via the ZoneDirector and having your L3 firewall/router/DHCP server handle giving these devices IP's from a different pool.