About zachartl

zachartl · 08-06-2024

Hello,We're using a single Catalyst Center appliance, version 2.3.5.6 to provision for PnP. DHCP Provisioning Option 43.Observing the console of the test switch, the pnp session appears to make contact with the Catalyst Center Appliance via TCP Port ...

zachartl · 08-04-2024

Hello,I've Catalyst Center Appliance version 2.3.5.5The organization does not utilize it's own PKI Certificate Authority. The CA is an external entity, well known for providing PKI certficate services. And so I have generated a CSR, submitted it and ...

zachartl · 05-22-2024

Hello,Have the latest CML images discontinued the use of SHA-1 DH Key Exchanges? I'm trying to utilize Ansible with my existing IOS-L2 images. It appears OpenSSL/SSH is no longer supporting SHA-1Thank you,Terry

zachartl · 03-20-2024

Hello, We're transferring legacy network connections to our ACI environment. We've got one that comes up at layer-1 100MB Full-Duplex but the MAC Address won't attach to the interface. We're wondering if the MAC Address is, "too old"? For the ACI Lea...

zachartl · 03-08-2024

Hello,I'm having a hard time trying to bring up a simple eBGP adjacency between a Nexus 93180YC-EX and a Catalyst 9500. They can't agree on a BGP parameter, to bring up the session. Has anyone experienced this? Forgive me, I can't remember the parame...

zachartl · 08-15-2024

Hello,I believe we have found the issue. It appears we're using a tftp server for IP Phones. The tftp server IP address is configured within the DHCP Global Scope. As such, we are receiving that tftp server IP address within our DHCP addresses alongs...

zachartl · 08-07-2024

Hello,Yes, I added the pnpserver in the Cert as a SAN. Thank you for asking. I forgot to mention that. And that pnpserver FQDN was put in the DHCP Scope we're using. Thank you for the Reference too.

zachartl · 08-07-2024

Yes Sir, that indeed works. I'm also able to telnet to the CatC FQDN on TCP Port 80 and get a session established. I'm starting to consider the Certificate. We had to utilize an External CA and Server Cert. Household name for External Certs. I've man...

zachartl · 08-06-2024

Hello,No firewall either.

zachartl · 08-06-2024

Hello,Ping is good out and back. Thank you.

Member Since	‎08-08-2005 01:13 PM
Date Last Visited	‎08-07-2024 01:09 AM
Posts	115
Total Helpful Votes Received	59

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User Activity

Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respond

Catalyst Center External PKI Certificate Support

CML Images Support for Recent non-SHA1 DH Keys

L2 End-Point MAC Address Not Attaching to Leaf Switchport Interface

Trouble Bringing Up eBGP Adjacency (Neighborship) N9K and Cat9K (9500)

Re: Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respon

Re: Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respon

Re: Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respon

Re: Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respon

Re: Catalyst Center PnP Provisioning ; Catalyst Center Does Not Respon