Hi @wang_dongmei888 ,   You should not have problems installing the software. About the letters MD: https://learningnetwork.cisco.com/thread/62427 Maintenance Deployment (MD) A Cisco software release that provides bug fix support and ongoing software maintenance.   Regards ... View more

Hi @AbdullaBahram ,   The prices of the devices will depend on where you live and the partner. I leave this link that can help a cisco partner near you: https://locatr.cloudapps.cisco.com/WWChannels/LOCATR/openBasicSearch.do   Regards ... View more

Hola @Mauricio Gil ,   Antes de que saliera el PT para MAC, virtualicé un windows e instale el PT en la máquina virtualizada. Toma el tema de la virtualización como opción B.   Saludos ... View more

Hi @utkrishtkashyap ,   You are welcome.   Regards    Remember to mark the correct answers as solved, because that helps other users with similar questions. ... View more

Hi @maxmaximus ,   Check this discussion: https://community.cisco.com/t5/telepresence-and-video/does-a-cisco-dx80-work-with-bluetooth-keyboards/td-p/3336074   Regards ... View more

Hola @José Corniel A ,   El flapeo de MAC, en ocaciones, es debido a loops. Tienes alguna redundancia en tu red? Puedes verificar que STP esté bien configurado?   Saludos ... View more

Hi @utkrishtkashyap ,   Do i have to use intervlan routing to create vlan to use resources on local network? You can divide the 3 departments using VLANs, allowing traffic between vlan through intervlan routing using a switch layer 3 (configuring SVIs) or using a router (configuring Router-On-A-Stick).   Which one is best routing protocol for this project ospf or other? OSPF is a good routing protocol, compatible with different brands. If you are more familiar with this protocol, I recommend using it.   I have to provide security to the network using port security Port-security is activated with these commands: Sw(config-if)#switchport port-security Sw(config-if)#switchport port-security maximum <MAC number per port> Sw(config-if)#switchport port-security mac-address sticky  Sw(config-if)#switchport port-security violation restrict    server on one location should be accessible to all departments One department should not have access to web server how to do that? The filter between networks or devices must be done using ACLs   Regards ... View more

Hi @jacksanstra,   Indeed, you can copy the IOS to your devices so that they have IOS again.   Regards. ... View more

Hi @Hello There ,   Query: How much power is being delivered by your power injector? As far as I know, the power injector does not receive power from the switch.   Regards ... View more

Hi @unidadso,   Maybe this link can help you: https://www.santiagobuitragoreis.com/activar-licencias-en-routers-cisco-isr-e-isr-g2/   Regards ... View more