topic documents in Network Security https://community.cisco.com/t5/network-security/documents/m-p/1839903#M459748 <HTML><HEAD></HEAD><BODY><P> This is considered as L2 attack nothing to do with Firewall.</P></BODY></HTML> Fri, 10 Feb 2012 11:03:19 GMT ajay chauhan 2012-02-10T11:03:19Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839900#M459734 <P>Hi</P><P></P><P></P><P>I need to know regarding some concept such as.</P><P></P><P></P><P>How to find if there is any dhcp spoofing, To find which are the ports opened on firewall. etc.</P><P></P><P></P><P>Please provide some documents regarding security.</P> Mon, 11 Mar 2019 22:26:32 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839900#M459734 prashantrecon 2019-03-11T22:26:32Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839901#M459739 <HTML><HEAD></HEAD><BODY><P>Checkout this-<A href="http://www.nanog.org/meetings/nanog42/presentations/Bhaiji_Layer_2_Attacks.pdf">http://www.nanog.org/meetings/nanog42/presentations/Bhaiji_Layer_2_Attacks.pdf</A></P></BODY></HTML> Thu, 09 Feb 2012 15:27:27 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839901#M459739 ajay chauhan 2012-02-09T15:27:27Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839902#M459743 <HTML><HEAD></HEAD><BODY><P>Thanks Ajay,</P><P></P><P>It will better if you can send me&nbsp; doc regarding firewall</P></BODY></HTML> Fri, 10 Feb 2012 04:03:00 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839902#M459743 prashantrecon 2012-02-10T04:03:00Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839903#M459748 <HTML><HEAD></HEAD><BODY><P> This is considered as L2 attack nothing to do with Firewall.</P></BODY></HTML> Fri, 10 Feb 2012 11:03:19 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839903#M459748 ajay chauhan 2012-02-10T11:03:19Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839904#M459752 <HTML><HEAD></HEAD><BODY><P>That is any tool available to check check ports opened on firewall</P></BODY></HTML> Fri, 10 Feb 2012 11:22:28 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839904#M459752 prashantrecon 2012-02-10T11:22:28Z documents https://community.cisco.com/t5/network-security/documents/m-p/1839905#M459756 <HTML><HEAD></HEAD><BODY><P> You can check free port scanner put your ip range and that will give you results.</P></BODY></HTML> Fri, 10 Feb 2012 11:39:29 GMT https://community.cisco.com/t5/network-security/documents/m-p/1839905#M459756 ajay chauhan 2012-02-10T11:39:29Z