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Cisco Community is an active and collaborative place to learn more about our products and ask questions of peers and Cisco experts! Check out some of the most popular conversations happening right now!

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Flash broken - how to get IOS again

Hello,i have an ISR 4431 Router with broken flash. The device has been registered with Cisco but i have no additional contract.According to the chat support, there is no way to download again the IOS delivered with the router?Any idea how to do this?...

wh17 by • Level 1
  • 156 Views
  • 8 replies
  • 0 Helpful votes

Resolved! Port-channel VPC with different bandwidth

I was working with two L2 WAN links, one with a speed of 1G and the other with 10G. These links are connected to my L2 switch using a trunk interface. Is it possible for me to configure these links as a bundle using a port-channel LACP? Since they op...

Some Clients unable to connect after WLC upgrade to 8.10.196

Hi, I need some help debugging this issue. After WLC5520 upgrade from 8.10.162.0 to 8.10.196.0, some client can not access to wireless network. ( AP C9115AXI-T ) The situation is as follows: (1) The client can get IP from DHCP server, but can not pin...

cy_yeh by • Level 1
  • 100 Views
  • 5 replies
  • 0 Helpful votes

PnP onboarding ISR1k cEdges completely on prem.

Hello everyone,I'm setting up SD-WAN environment that will be totally on prem, where edge routers have no Internet access. Each ASR1k cEdge device will have two MPLS transport links to reach controllers and several 8300s as hubs. DHCP will be under m...

Flang3r by • Level 1
  • 129 Views
  • 4 replies
  • 0 Helpful votes

Error en examen final CCNA

Buenas, tengo un problema con el examen final del CCNA de cisco, me sale el error  "No hay datos disponibles en la tabla". He probado a usar Google Chrome, firefox, he borrado los datos del historial y cookies, usar otro ordenador y nada. ¿Que puedo ...

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juan so by • Level 1
  • 17 Views
  • 0 replies
  • 0 Helpful votes

Using an ASA as a router

Hello,the question is in the title. Is it possible to use the ASA as a router between 2 internal networks? interface GigabitEthernet1/1nameif outsidesecurity-level 100ip address 10.0.1.254 255.255.255.0interface GigabitEthernet1/2nameif insidesecurit...

abtt-39 by • Level 1
  • 1224 Views
  • 21 replies
  • 0 Helpful votes

DTMF issue

there is no CUBE between the telco and CUCM Could you provide some guidance on how to resolve this issue?* this call flow work on another telco.*Works for landline calls but not for mobile calls   

Screenshot 2024-09-19 170057.png
1620415 by • Level 1
  • 26 Views
  • 0 replies
  • 0 Helpful votes

C921-4P Lan Port Static IP addresses

I am trying to connect three servers with static IP addresses on the LAN Ports (0-3) of a C921. If I try to assign a static IP address to Port 0, it is refused with a message stating the an IP address cannot be assigned to a Layer 4 port. Is there a ...

snwhi by • Level 1
  • 88 Views
  • 1 replies
  • 0 Helpful votes

OSPF Virtual Links: Transit capability

  Introduction The purpose of this document is to demonstrate the Open Shortest Path First (OSPF) behavior when the V-bit (Virtual-link bit) is present in a non-backbone area. The V-bit is signaled in Type-1 LSA only if the router is the endpoint of...

asofrani by • Cisco Employee
  • 4281 Views
  • 1 replies
  • 5 Helpful votes

Central controller with multiple sites VS EWC AP at each site

Currently we run a 9800WLC in our data centre which controls AP's across 45 sites give or take.(This is configured through Catalyst Center btw)Guest network is central switched, central auth with ISE doing the guest portal.Another SSID is central aut...

DJW487 by • Level 1
  • 111 Views
  • 3 replies
  • 0 Helpful votes
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