I have a FirePower 1100 for my home lab and for some reason, it lost DNS connectivity and lost registration. I did not notice and now I can't deploy changes. I connected to the CLI and tried to ping from system. When I try to ping from system I get t...

I am studying for the CCNP Service Provider and I am trying to understand the Route Reflector design and configuration regarding MPLS LDP.  I have read that the Route Reflector does not need MPLS with LDP since is not part of the forwarding plane. Bu...

I'm traying to configure OSPF in a FlexVPN between the hub and the spoke. I see OSPF spokes routes on the hub, but none of the hub routes on the Spokes. I made some changes to the configuration as suggested in this post Solved: OSPF Routing with Flex...

I am doing a lab with FLEX VPN before configuring any production and this is my first Flex VPN but is not coming up. I ran show monitor event-trace errors all, returning Flex VPN SA ID:0 SESSION ID:0 Failed to initiate sa. On the hub the errors is 50...

A strange thing has happened on an IPsec configuration. I have done some research with no luck. The tunnel is up, and I did a packet capture on the FortiGate of some icmp packets from the FortiGate to the Cisco and with no response found. I see packe...