ACL's on a Policy Map
I'm in the process of using policy and class maps to prevent aol, msn and yahoo IM traffic. But there are some people in IT who rely on using the IM for certain things. Whether its help for something or a quick message or whatever. But our IT department is on a different vlan than all the other users. Is there a way that I can still use the policy and class maps to drop IM traffic for all vlans except the IT vlan using ACLs?
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You can create your ACL to deny the subnets that you want to block the IM services on. Once you add a permit ip any any at the end, it will not filter out your IT department.
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But how would the ACL be applied to the policy map so it knows which traffic to allow and not allow?
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Hardware Firewalls
Hardware-based firewalls provide more sophisticated protection for inbound and outbound traffic than the simple Windows software firewall or the basic NAT firewalls found in routers. These devices implement techniques such as stateful packet inspection, deep packet inspection, and content filtering; and may include built-in antivirus and anti-malware protection.
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