Cisco: How to enable ICMP packets for a Cisco PIX 501?
Cisco PIX 501 is one of my favorite hardware firewalls to work with. I have couple of them and I am still using these (2011). Most of the time ICMP is disabled on these devices. To enable the ICMP...
View ArticleCisco: How to configure switchport for trunking Hyper-V?
In the following example I installed my Windows Server 2008 Hyper-V server and connected the network uplink connection to the default 1 vlan switchport. I have a separated vlan 2200 for my lab...
View ArticleCisco: how to publish Windows 2003 PPTP VPN Server on PIX?
I installed a Windows 2003 PPTP/L2TP VPN server. After the server installation I started testing the communication by creating a VPN connection. The first error I got while connecting was...
View ArticleCisco: how to setup Windows PPTP VPN server port forwarding on PIX?
In the following example I am configuring port forwarding to a Windows Server 2003 PPTP VPN server. My lab has been configured as shown in the diagram. I have a /28 network registered on the Internet...
View ArticleCisco: how to configure multiple ports on a switch as trunk?
If you are managing Cisco network equipment and switches in particular then you should be aware of the following feature. This feature can save you a lot of time when configuring Cisco switches. In my...
View ArticleCisco: MT-RJ fiber uplink port switch
If you are managing local area networks that extent the UTP capabilities then most likely some kind of fiber optic connection is installed. Recently I evaluated couple Cisco switches and I ordered one...
View ArticleCisco: VPN Client 414 connection terminated?
Recently I was troubleshooting a Cisco VPN client issue. Cisco VPN client version 4.0.5 is installed on a Windows XP SP2 client with most recent Windows Security updates. After I installed and...
View ArticleCisco: How to reset password of a switch?
Did you ever needed to login on a Cisco Switch and change the configuration? The responsible person is on vacation or out of the office; you forgot the password of the switch and you want to login, and...
View ArticleCisco Router 851W: Configuring wireless LAN
While preparing a Cisco Router 851w for a SOHO implementation I run into couple of issues. I tried to configure the router from the http interface but soon I figured out this is not the right way. I...
View ArticleCisco AnyConnect VPN Client: Windows Security Certificate Selection
Recently I deployed Lync 2013 client and soon after I started to receive the following pop-up message: This happened when connecting with my Cisco AnyConnect VPN client on a Windows 7 Enterprise...
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