Can I use IP-KVM for remote management of a router’s serial console?

You might be looking for something like a device server instead of just relying on an IP-KVM. They exist specifically for remote access to serial devices, which can help you connect to network equipment's console. Here's a product that might be suitable for your needs: https://www.get-console.com/shop/en/device-servers/99-airconsole-ts-12-port.html

Generally, it's not straightforward to use an IP-KVM for serial console access. You’ll want a terminal server instead, which is designed to handle that kind of connection. Check out something like the Digi Connect series for better compatibility.

Remember, accessing a firewall's console is usually a last resort when things are going wrong. SSH is definitely the better route for managing routers and switches efficiently. If you're after alternatives, OpenGear and WTI offer some solid options for serial console servers.

Another way to go about it would be using a small NUC with Linux and a couple of USB-A to RJ45 console cables. You can use something like Minicom to set up access for each device you want to manage, and then just SSH into the NUC to connect to them directly. makes things pretty simple!

Nope, using IP-KVM won't work for your case. The console port on routers typically uses RS-232 serial, so unless the IP-KVM specifically supports that protocol, you're out of luck. It’s more efficient to go for a dedicated terminal server for your management needs.