I came across some really nice videos talking about the Cisco UCS Networking when surfing on the Internet. Here is the link: http://bradhedlund.com/2011/03/08/cisco-ucs-networking-videos-in-hd-updated-improved/
This topic poped up in my mind when I was writing the article ‘A Good Document Helps You Build Site2Site VPN’. Looking back in my personal VPN toubleshooting history, the case I am going to talk is listed on top of the reasons that cause site to site VPN not to work. The most common … Continue reading Please 100% Match the Internal IP Address
Building up a site to site IPsec VPN is not a hard thing to do. But of course you have to understand the principles at first. If you already knew what the two phases of negotiations are, now you can jump directly to the next graph. Otherwise, you should start from learning some fundamental VPN … Continue reading A Good Document Helps You Build Site2Site VPN
My home wireless router was Linksys WRT54G, which I have to gave to someone before I moved to another city. As there are too many stuffs need to be packed, and my wife’s stuffs always take higher priority . Now it turns out to be a good thing, as I may take it as an … Continue reading Cisco Next Generation Home Wireless Router
Step 1 The PC on which your TFTP server software runs must be configured with a static IP address in the range of 10.0.0.2 to 10.0.0.30. Step 2 Make sure that the PC contains the access point image file (such as c1200-k9w7-tar.122-15.JA.tar for a 1200 series access point) in the TFTP server folder and that … Continue reading 9 Steps to Recover Cisco Access Point IOS
This is one LAN-based ASA failover configuration sample that I wrote. Firstly, I prefer to list the IP addresses that I gonna use in my configuration, as it looks very neat. Note: Ensure the IP addresses in the same column are in one subnet. Role\Interface Outside Inside Failover DMZ Primary A.A.A.A C.C.C.C E.E.E.E G.G.G.G Standby … Continue reading Cisco ASA Failover Configuration
Cisco Virtual Security Gateway (VSG) brings security capabilities to Cisco Nexus 1000V series switches.