Tag: multiple
Cisco ASA: multiple context and capture
Packet captures are very useful for troubleshooting purposes. The Cisco ASA supports packet captures even in multiple context mode. I normally configure packet captures on CLI level. This can be done by configuring an access-list to match the specific traffic you would like to capture. Add the access-list and the specific interface in a capture command. … Read More
Configuration Example, Security
MAB and MDA in an IP Phone environment
I blogged before about the MAC Authentication Bypass (MAB) feature in network environments. MAC Authentication Bypass can be used to secure the wired network by verifying MAC addresses to a central database. By using a radius server, like Microsoft IAS or FreeRadius, you can also redirect verified MAC addresses to a specific VLAN. Lately I … Read More
Cisco Aironet: multiple SSID’s
I have been playing with some Cisco Aironet’s today. Configuration is quite simple and straightforward, but maybe not for everyone: Broadcast two SSID’s, unsecure and secure Authentication via WPA version 2 pre-shared key Management IP adres in management VLAN You are maybe thinking: “stand-alone access points, why no WLAN controller?” I agree, but be honest. … Read More
Cisco Firewall Design and Deployment
The session about firewall design and deployment didn’t reveal a lot of new things about the Cisco ASA appliance or FWSM module. The only new thing for me was the possibility to configure a redundant interface for a Cisco ASA appliance. The screen shot below shows the cabling scheme for an implementation with and without … Read More