First off, I apologize if this is not the best place to ask this question. I’m not really sure where to post it, but this community has been great so far. I hope someone here wouldn’t mind helping me out a bit.
I’m having a bit of trouble with my KVM network. I expect it is due to my lack of knowledge (networking really isn’t my strong suit), and not so much an error.
The problem I’m having is that my guests cannot access my host through the bridge, but they can access the host externally. So I guess I need to re-configure the bridge, but I really have no idea how to do that.
I read up on a few things, and I’m seeing recommendations that the physical interface needs to have no IP address set. However, if I do this, I won’t be able to access the internet from the host, as it has no external IP. I could do this by adding another NIC, but I don’t have one handy, and I’m running low on expansion slots on my motherboard.
Is there a way to have a proper, or at least working, software bridge for my VMs on one physical interface? It “works” using external traffic, but that’s a lot of extra and unnecessary steps, which has all kinds of concerns including security.
I’m not sure why external traffic works but internal traffic doesn’t when it is all going across the same interfaces. It sounds to me like it is a routing problem, but I really don’t know how to set up routing on a virtual bridge like this.
Any info or assistance would be appreciated, even if it is just a link to somewhere else for me to read up and understand what is going on more clearly.
Thanks in advance!