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Software Defined Network Guide – SDN – How To Create

Software Defined Network Guide – SDN – How To Create

#Software #Defined #Network #Guide #SDN #Create

“Jim’s Garage”

Proxmox 8.1 dropped some great features including SDN (Software Defined Network) and Notifications. Find out how to create a SDN quickly in this video.

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17 Comments

  1. Hi Jim. Your quick. Asked yesterday and now already :), Great one. I am going to use it for my RKE2 Servers.The Apply button is a pain. Was looking for that one as well when it first came out.
    Btw if you are wondering where the config files are? These are in /etc/pve/sdn

  2. Just followed this my self, works great except one thing, DNS is not working for me, it tries to set proxmox as the dns server but is not responding to requests from the lxc containers, havent found out why.

  3. Hi Jim, great video again and clearly explained!
    I was wondering if it would be possible to host a website with a cloudflare tunnel behind a SDN by limiting the access to only internet, pretty much like a vlan.

  4. I'm no network engineer…just a security engineer. What is the benefit of doing this vs just vlan on your physical firewall and segmenting it out that way? I'm assuming most companies aren't using "Proxmox" in true production environment, atleast I've never ran into it at any company I've worked for.

    Additionally, if you're using docker networking, then this becomes all quite convoluted and adds additionally complexity for management. I'd venture to guess this would be for more of an enterprise setup where you would want to isolate clients on separate vm networks? (i.e: proxmox in an enterprise setup).

    Just trying to understand the benefit of something like this.

  5. Just discovered your channel, and you have videos for a lot of the stuff I am in the process of setting up in my homelab: Opensense, separating all VMs to a single VLAN, SSO, private CA…and experiment with Zero Trust ideas… without having use for any of it (but fun to play around with). So a +1 for the sub from me. 😉

  6. so wait, if you created SDN, what is the speed of it? does it go through the physical NIC if it has to go out of Proxmox machine? what if not outside – then what is the speed?

  7. Jim. Quality video again. You have quickly become my favorite tech/homelab content creator. I definitely watch out for all your latest videos. Keep up the good work.

  8. After applying the settings, I get the error "Could not run before_regenerate for DHCP plugin dnsmasq cannot reload with missing 'dnsmasq' package" with a fresh 8.1 installation…

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