About fabioairoldi

fabioairoldi · 04-25-2024

Hello all, we are currently transitioning to a virtual 9800-CL WLC, hosted on a VMWare node on premise. The WLC and the FlexConnect APs are working correctly but I am experiencing a weird behavior with the interfaces. The APs are on VLAN 1 - 192.168...

fabioairoldi · 04-19-2024

Hello all, I have inherited an infrastructure with several catalyst 9200 switches. A few of them are unreachable when using ssh from a terminal, such as a linux server or Powershell. The error message is this: Unable to negotiate with <IP ADDRESS> po...

fabioairoldi · 04-15-2024

Hey all, I have several switches (Catalyst 9200) IOS version 17.10, all connected to a CORE switch (WS-C3850-24XS-E) All 9200 are connected through trunk ports, whose native vlan i is the management vlan where all switches have IP adresses. Now a f...

fabioairoldi · 01-29-2024

Hello all, I imported a third-party signed certificate to be used as a Guest Portal certificate in my cisco ISE 3.2. The trust chain is correctly imported under "Trusted Certificates". However in Aministration/System/Certificates/Certificate Manageme...

fabioairoldi · 06-05-2023

Hello everyone, I'm having troubles writing a proper pre.auth ACL for our guest portal. We use a custom HTML page with a script that sends 1812 authotrizations to a radius server. Now, with a "free-for-all" ACL where I open every TCP port towards any...

fabioairoldi · 04-26-2024

and the 3 effective interfaces should be 3 different ports, they can't be 3 VLANs on the same trunk port?

fabioairoldi · 04-26-2024

Thank you, the Analyzer tool is helpful, however it's not that the current config has issues, it's that I am experiencing an unexplicable (for me) behaviour when changing it. I was hoping for some tips in analyzing the overall network topology I show...

fabioairoldi · 04-23-2024

I can see there's differences... can I ask you all if there are commands to enable the missing algorithms and everything else? Are there any security issues in doing so?

fabioairoldi · 04-19-2024

I seem to already have this line in my ssh_config file, yet it doesn't work. As I have two Catalyst 9200 switches (call them SW1 and SW2), the exact same model, SW1 is refusing the connection while SW2 is accepting it... is there any command to modif...

fabioairoldi · 04-19-2024

in the end I just found the right time to reboot, thanks for all the help.

Member Since	‎06-05-2023 06:56 AM
Date Last Visited	‎04-28-2024 11:17 PM
Posts	17
Total Helpful Votes Received	1

User Statistics

User Activity

WLC 9800-CL - help with correct interface/SVI configuration

ssh into a switch - no matching key exchange method found

Switch stopped responding to ping through trunk port

unable to change "usage" of a certificate

pre-auth ACL for guest webauth portal- WLC 9800

Re: WLC 9800-CL - help with correct interface/SVI configuration

Re: WLC 9800-CL - help with correct interface/SVI configuration

Re: ssh into a switch - no matching key exchange method found

Re: ssh into a switch - no matching key exchange method found

Re: Switch stopped responding to ping through trunk port