topic Re: SDA DHCP Requirement in Software-Defined Access (SD-Access)

SDA DHCP Requirement

fatalXerror — Sat, 03 Feb 2024 16:12:40 GMT

Hi, Can I use a catalyst switch as a DHCP server for my SDA network or it is required to have a Windows server type for a DHCP service for SDA environment?

Re: SDA DHCP Requirement

M02@rt37 — Sat, 03 Feb 2024 16:26:24 GMT

Hello @fatalXerror

It's recommended to use a centralized DHCP server, and Cisco Catalyst switches can integrate with external DHCP servers, which could include Windows servers. While some Catalyst switches do support basic DHCP functionality, using a dedicated DHCP server, especially in larger or more complex deployments, is often preferred for better management and scalability.

Re: SDA DHCP Requirement

fatalXerror — Sat, 03 Feb 2024 16:33:36 GMT

Hi M02@rt37 , thank you for your feedback. Understood on where you are coming from but what if there is no option to have a dedicated Windows Server that is for DHCP only, in this case, can we use any other network devices like Catalyst or Firewall to be the DHCP server for the SDA environment? Because if I can remember it, there is in need of DHCP Option feature for the SDA so I am not sure if it will support by a network device-based DHCP. thank you

Re: SDA DHCP Requirement

M02@rt37 — Sat, 03 Feb 2024 16:47:01 GMT

You're welcome @fatalXerror.

In scenarios where a dedicated Windows Server for DHCP is not feasible, Cisco Catalyst switches can indeed serve as DHCP servers for SDA environments.

If your Catalyst switch supports the required DHCP options and functionalities for SDA, it can be a viable solution for DHCP services within the SDA environment.

Re: SDA DHCP Requirement

Andrii Oliinyk — Sat, 03 Feb 2024 16:50:12 GMT

IOS-based DHCP-server supports all the needs of SDA Fabric. u can easily google it

Re: SDA DHCP Requirement

balaji.bandi — Sat, 03 Feb 2024 20:14:35 GMT

If this is Lab that is ok, but if this in production - DHCP play key role serving IP address to the client that can be wire and wireless.

Rather depending on single device, plan for proper High available DHCP Servers(2) using Windows DHCP (if you not able to buy any DDI solution)

this save you lot of your headache when the switch fails. (operational point of view) - if you have local expert you can setup 2 Linux box for DHCP server. (if you do not have Windows Server License)