Native VLAN mismatch Error on Access Port
Cisco switches always have VLAN 1 as the default VLAN, which is needed for many protocol communication between switches like spanning-tree protocol for instance. Unfortunately you can’t change or even…
Cisco Configuration Professional (CCP) Configure IOS SSL VPN (AnyConnect SSL VPN)
Basic Cisco Configuration Professional (CCP) configuration has been posted before at following link: Cisco CCP Installation and Basic Configuration This Post will demonstrate how to use CCP to configure SSL…
Cisco CCP Installation and Basic Configuration
Cisco Configuration Professional (Cisco CP) is a GUI based device management tool for Cisco access routers. This tool simplifies routing, firewall, IPS, VPN, unified communications, WAN and LAN configuration through…
Recover Cisco Device using TFTP Server or External Card from a Corrupt or Missing Image or in Rommon Mode
Cisco Switch usually is quite robust and not give me hard time. When it happens, it happens. What I met is a situation Cisco 4500 switch got into Rommon mode…
Check Point 1100 Appliance Configuration Step by Step
Check Point 1100 Appliance A couple of months ago, I received Check Point 600 Appliance and did a post regarding basic configuration for 600. It is used to replace replaces…
Cisco Wireless Controller 5508 Configuration Step by Step – Part 3 (Certs Auth and Other Settings)
This post will use a typical WiFi in office environment as an example to present related configuration on WLC, Radius (NPS), DHCP Servers. 1. Topology: 1.1 Network Topology Relate Posts:…
Cisco Wireless Controller 5508 Configuration Step by Step – Part 2 (User/Machine Auth)
RADIUS server has been used on a Cisco® Catalyst switch, router or IOS based wireless controllers in the context of enterprise network access security. 1. 802.1x and EAPWhile IEEE 802.1X…
Fortigate 60D High Availability Configuration Steps
Fortigate 60D has been used to do HA examples in this post. The back of Fortigate 60D: The configuration steps for Fortigate High Availability is the easiest one comparing other…
Windows Network Policy Server Basic Radius Configuration for Cisco devices
RADIUS Traffic RADIUS server configuration on Cisco IOS is performed in two steps, one set of commnads are defined within the AAA paradigm and other set is run with the…
Password Recovery for Cisco Router 2900
I have to reset one Cisco 2901 router to factory default. Unfortunately no one knows user name and password. Cisco documentation Password Recovery Procedure for the Cisco 2900 Integrated Services…
Troubleshooting Cisco IPSec Site to Site VPN – “reason: Unknown delete reason!” after Phase 1 Completed
It is always not easy when troubleshooting a vpn issue. You will meet many situations. Here is one of examples I used to meet during configuring ipsec vpn.Other examples to…
Troubleshooting Cisco IPSec Site to Site VPN – “IPSec policy invalidated proposal with error 32”
There was vpn set up recently using Cisco Router to connect Check Point firewall. It seems quite simple task but “IPSec policy invalidated proposal with error 32” made me go…