Configuration Example, Security
MAC Authentication Bypass – Continued
Finally I had a day “off” and could test MAC Authentication Bypass (MAB) in our test environment at the office. I created the following test environment: There are 4 different VLAN’s and a Cisco Catalyst 3750 connects the VLAN’s to each other. I wanted to create an environment with the following properties: All switch ports … Read More
ID Control
Ictivity received via via an e-mail about strong authentication products from ID Control. Strong authentication is authentication were you need multiple factors (what you have, what you know, what you are) to actual authenticate to a system, network or something else. We, as Connectivity Consultant, were asked to look at the different products and start … Read More
Configuration Example, Firewalling
PIX / ASA – Threat Detection
From software release 8.0 and later the Cisco PIX and Cisco ASA firewalls support the feature called Threat Detection. In the default configuration Basic Threat Detection is enabled on the security appliance. Using Threat Detection the appliance monitors the rate of dropped packets and security events due to these reasons (Source): Denial by access lists; … Read More
Configuration Example, Firewalling
PIX Failover not working
Today I received the question why a PIX failover configuration wasn’t working. The customer accidentally disconnected the power cable from the primary PIX firewall. The secondary PIX firewall became the active one, but multiple DMZ segments weren’t working anymore. After rebooting the PIX firewall and making that the primary one again, the DMZ segments were … Read More
New look and feel!!
I updated the theme I use for my blog and I noticed that the RSS feeds weren’t working for me anymore. I had to subscribe again before the RSS entries were updated again. So for those of you who have subscribed to my RSS feed, maybe you have to unsubscribe and subscribe again to get … Read More
Configuration Example, Security
MAC Authentication Bypass
NAC (for Cisco – Network Admission Control) or NAP (for Microsoft – Network Access Protection) in conjunction with 802.1x will be standard for authenticating network components and allowing them access to the network. At least in the future. Currently their aren’t a lot of companies how are using NAC in the network. Techworld released an … Read More