- #ASA 5505 BLACKLIST MAC ADDRESS REGISTRATION#
- #ASA 5505 BLACKLIST MAC ADDRESS PC#
- #ASA 5505 BLACKLIST MAC ADDRESS DOWNLOAD#
Weird, I call the ISP, they tell me the MAC they're seeing connected is a1a1:a1a1 : 219d. I register this MAC with the ISP, set the 'outside' interface to DHCP, hook up the modem, but no Internet. Let's pretend the MAC of Ethernet0/0 shows up as a1a1:a1a1: 2195 in the above output.
Should be easy to find the MAC of the port connected to the ISP's modem, right? Telnet into the ASA, enable, run a quick 'show interface Ethernet0/0' (<-this is the interface cabled to the modem), et voila, there's the MAC on line 3, right?.
#ASA 5505 BLACKLIST MAC ADDRESS REGISTRATION#
I was setting up a Cisco ASA 5505 for a branch office with an ADSL service that uses MAC registration to recognize authorized devices for DHCP address assignment. At the CLI of the Cisco ASA, display the translation table.Here's a weird one. You should see the configured policy and statistics for translated packets. At the CLI of the Cisco ASA, display your NAT configuration. From the Guest PC, generate traffic to SP-SRV by opening a browser and navigating to. From the Employee PC, generate traffic to SP-SRV by opening a browser and navigating to. In the Cisco ASDM, display and view the auto-generated NAT rule. NOTE: Login credentials are not needed for this simulation. NOTE: Not all ASDM screens are active for this exercise. Destination interface: outside NOTE: The object (TRANSLATED-INSIDE-HOSTS) for this translated IP address has already been created for your use in this activity.
#ASA 5505 BLACKLIST MAC ADDRESS PC#
To successfully complete this activity, you must perform the following tasks: Use the Cisco ASDM GUI on the Admin PC to configure dynamic network object NAT with PAT using the following parameters: Network object name: Internal-Networks IP subnet: 10.10.0.0/16 Translated IP address: 192.0.2.100 Source interface: inside You must configure the Cisco ASA such that the source IP addresses of all internal hosts are translated to a single IP address (using different ports) when the internal hosts access the Internet. You have completed this exercise when you have configured and successfully tested Botnet traffic filter on the Cisco AS This destination is classified as malware destination by the Cisco SIO database.įrom Admin PC, launch ASDM to display and observe the Real-Time Log Viewer. Verify that the ASA indeed drops traffic to blacklisted destinations by doing the following:įrom the Employee PC, navigate to to make sure that access to the Internet is working.įrom the Employee PC, navigate to. NOTE:Not all ASDM screens are active for this exercise. NOTE:DNS is enabled on the inside interface and set to the HQ-SRV (10.10.3.20). NOTE:The database files are stored in running memory they are not stored in flash memory. Configure the Botnet Traffic Filter to drop blacklisted traffic on the outside interface.
#ASA 5505 BLACKLIST MAC ADDRESS DOWNLOAD#
* Download the dynamic database and enable use of it.Įnable the ASA to download of the dynamic databaseĮnable the ASA to download of the dynamic database.Įnable DNS snooping for existing DNS inspection service policy rules.Įnable Botnet Traffic Filter classification on the outside interface for All Traffic. To successfully complete this activity, you must perform the following tasks: You are also required to test your configurations by initiating connections through the Cisco ASA and then display and observe the Real-Time Log Viewer in ASDM. The CSO has tasked you with enable Botnet traffic filter on the Cisco ASA to detect and deny further connection attempts from infected PCs to malware destinations. The Chief Security Officer deduced that some PCs in the internal networks are infected with malware and communicate with malware infected destinations. The company has recently detected Increase of traffic to malware Infected destinations. You are the network security engineer for the Secure-X network.
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