<div>
make a complaint at the owner of the ip, or the ISP.how do you know is a c4000?
</div>


make a complaint at the owner of the ip, or the ISP.how do you know is a c4000?

<div>
His ISP changes.<br />
It's my client that gas tge Cisco 4000
</div>


His ISP changes.
It's my client that gas tge Cisco 4000

<div>
This helped<br />
<br />
Thanks
</div>


<div>
<div class="content wysiwyg-content">
For two weeks one of my clients has been getting <br />
Audit Failures. I traced the ip and I think this attacker is spoofing his ip address. What can I do to stop this.<br />
The attacker is searching various ports.After I reboot the server the attacker switches ip address's They are using a cisco 4000 router and I don't see a place where to block the ip's but it won't matter. Please help
</div>
</div>


For two weeks one of my clients has been getting 
Audit Failures. I traced the ip and I think this attacker is spoofing his ip address. What can I do to stop this.
The attacker is searching various ports.After I reboot the server the attacker switches ip address's They are using a cisco 4000 router and I don't see a place where to block the ip's but it won't matter. Please help

Hacking Attempts

Network security consists of the policies adopted to prevent and monitor authorized access, misuse, modification, or denial of a computer network and network-accessible resources. Network security involves the authorization of access to data in a network, and covers a variety of computer networks; conducting transactions and communications among businesses, government agencies and individuals. Networks can be private, such as within a company, and others which might be open to public access.