Answer :
A standard IP ACL (Access Control List) can be configured to do the following things:
Filter traffic based on source IP address: A standard IP ACL can be configured to allow or deny traffic from specific source IP addresses. For example, you can configure the ACL to allow traffic from Barney's IP address (10.1.1.1) and deny traffic from other IP addresses in the subnet 10.1.1.0/24.
Control access to specific network services: The ACL can be used to permit or deny access to specific network services based on source IP addresses. For instance, you can configure the ACL to allow Barney's IP address to access a specific service or deny access from certain IP addresses to a particular service.
Implement traffic filtering policies: With a standard IP ACL, you can define rules to filter traffic based on source IP addresses. This allows you to enforce policies such as allowing or blocking traffic from specific hosts or networks.
Restrict network access based on IP addresses: By configuring the ACL, you can restrict network access to certain IP addresses. This can be useful in securing network resources and preventing unauthorized access.
It's important to note that a standard IP ACL operates at the network layer (Layer 3) of the OSI model and can control traffic based on source IP addresses only. It does not provide more granular filtering options like port numbers or destination IP addresses.
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