Switching

I am seeking a way to monitor a port to know when more than 3 MAC addresses have been attached to the port.  Port security does not seem to offer a solution because the port is shut down.  I also looked into using an  ACL but that does not seem to ov...

I am in the process of learing how to configure my first GRE tunnel and have a few questions. I know that I need to have a unique IP address for the tunnel on each end but am wondering if there are any standards or best practices for selecting this a...

Problem 1) My 2800 Router stopped booting, all I see is a blank screen and no configuration boot. I tried turning off the router, taking out the flash butting it back in securing it, but it just doesn't want to boot, what is my problem ??????2) Tryin...

Hello,I have one server (web application) with IP 10.1.1.2 . It's located in the internal network. But on the router "newROUTER" is deployed NAT 10.1.1.2 to one of our global address 83.15.52.165 (dns entry: app.example.com) , thus is accessible from...

Hi,I've just started out playing with a Cisco 1800 router to gain some knowledge of Cisco devices before taking a CCNA. I also have a 2950 switch but will start with the router.I'm using an Android phone as a wireless Internet access point.  This iss...

Hi all.I am looking for a way to bind between a switch interface (cat 3750X) and a DHCP server reply.The switch can operate as the DHCP server .For example, a PC connected to interface Gi 1/0/1 will lways get IP address 10.0.0.1 because it is connect...

Have not worked with this router before, so I am not familiar with it at all.  I have a client though who has requested some help on a routing issue.  They have two networks connected via this router and they cannot talk to one another.  From the des...

can I do a vpc with 3 nics on 3 different fexs?

Hi. How i can remove the vtp domain after i define it ?Sent from Cisco Technical Support iPhone App

The school I work at upgraded to Cisco Catalyst 2960-S switches, all connected to each other via fiber.  I am seeing a problem with one such connection.  Cisco Network Assistant showed a "4-Warning" regarding the fiber link port: port was disabled be...

                  I have a question about using both Qos and traffic shaping. Is it smart to use both?  I  though using the rate limit bypasses the Qos settings which makes it worst on the traffic. Should you just use one?  Does the rate limit take a...

We are in the process of cleaning up our vlans on our access switches.  Currently we use VTP to propigate all of our vlans to the devices.  We would like to change these over to transparent and then just add them as we need to.  In all honesty we do ...