dalva
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How to force public wireless users to surf safe
We have a wireless network for public users.
We also use the ScanSafe service for safe web access for our internal users.
On our internal users we have access to their desktops where we set the ScanSafe server IP address in the IE proxy settings.
My question:
How does one go about making the public wireless users surf through the ScanSafe service when we don’t have access to their laptops?
We are using a Cisco ASA5510 and AIR-CT5508 wireless controller but are willing to change things around to make public users surf through ScanSafe.
We also use the ScanSafe service for safe web access for our internal users.
On our internal users we have access to their desktops where we set the ScanSafe server IP address in the IE proxy settings.
My question:
How does one go about making the public wireless users surf through the ScanSafe service when we don’t have access to their laptops?
We are using a Cisco ASA5510 and AIR-CT5508 wireless controller but are willing to change things around to make public users surf through ScanSafe.
At a minimum, you will need a firewall to block outbound TCP 80 and TCP 443 except for the IP addresses needed to connect to the ScanSafe service.
ASKER
We don't want to block anything at the firewall. We want to redirect all Internet requests to pass through the ScanSafe servers.
As rdmustang correctly points out, you need to block at the firewall level, or guest users can just bypass ScanSafe manually.
To deliver the proxy settings to them, you need Web proxy Autodiscovery Protocol (WPAD). See http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol for more info on how it works.
It involves a webserver, a DHCP server and DNS server to get working. You also need to configure a specific file, called a .pac file with the options that suit your needs.
To deliver the proxy settings to them, you need Web proxy Autodiscovery Protocol (WPAD). See http://en.wikipedia.org/wiki/Web_Proxy_Autodiscovery_Protocol for more info on how it works.
It involves a webserver, a DHCP server and DNS server to get working. You also need to configure a specific file, called a .pac file with the options that suit your needs.
One option is to use WCCP to redirect traffic on the ASA. I don't know if ScanSafe supports that.
Another option is to use PBR but that is supported only on the routers.
Another option is to use PBR but that is supported only on the routers.
ASKER
ScanSafe does not support WCCP.
If we had to, we could place a router between the ASA and the Internet. PBR may be an option we can look into more.
If we had to, we could place a router between the ASA and the Internet. PBR may be an option we can look into more.
ASKER
I heard the SonicWall FW TZ 200 has the option Web Proxy Forwarding. I have ordered one and will post back in a few weeks when it has been installed and tested.
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ASKER
Author has posted a solution.
ASKER
The SonicWall product worked therefore question should be closed and no points awarded.