Block a suspicious IP address

Hell,

I discovered that there is an IP address of suspecious that I need to block the access to our network. It is a potential attack on our network. Would be the best way to achieve this on the SAA?

Very much appreciated.

Best, ~ sK

Assuming you allow external traffic to a web server via a NATted address...

Precede your existing access-list entry of "permit" with a deny for that specific IP address. The syntax varies depending on how you have authorized to access your existing configurations; but it would usually look something like this:

outside access-list deny tcp host eq www

list access outdoors in permit tcp any host eq www

The key element is the entrance to refuse to be encountered first, given that the ACEs are processed in the order with the first game expel the packet to the next element in the treatment system. Corresponding to a will ACE 'decline' cancel the package.

Tags: Cisco Security

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