Join Log in
Score:1
ahaswer avatar Server

Establish KVM bridge with static IP

ar flag
ahaswer

I would like to establish a virtual machine (KVM) on Ubuntu Server and configure bridge networking in order to connect to the VM via static IP. I want to connect to the VM directly via SSH (bypassing the host).

However I have only remote access to the server (in case of emergency I have to get to the other end of the city) so I would like to avoid any issues which could cause losing network connection. The server is connected to the network which uses MAC filtering. Therefore the /etc/netplan/config.yaml looks like:

# This is the network config written by 'subiquity'
network:
  ethernets:
    eth1:
      dhcp4: true
    eth2:
      dhcp4: true
    eth33:
      dhcp4: true
  version: 2

And the /etc/network/interfaces file is empty. The IP address assigned to the server is e.g. 11.22.3.1 (eth1) and I have obtained additional static IP from network admin to create VM bridge which is 11.22.3.2 Now, which file should I edit (/etc/netplan/config.yaml or /etc/network/interfaces) and how it should look like afterwards? I have seen some guides to edit eth1 by adding 'bridges' lines to /etc/netplan/config.yaml. If so, should I turn dhcp4: false and assign static 11.22.3.1 IP in the file? What would be the best solution of the issue?

73
0 + 1
A.B avatar
cl flag
A.B
You should have a plan B in case of network connectivity loss. Typically a remote console. Beside this, you should also describe how the host's provider's MAC address filtering works. Usually MAC filtering is incompatible with the use of a bridge. You still have left routing/ARP proxy, or ipvlan/ipvtap as workaround.
0
Reply
ธงชาติไทย
Elon Musk
I sit in a Tesla and translated this thread with Ai:

mangohost

Post an answer

Most people don’t grasp that asking a lot of questions unlocks learning and improves interpersonal bonding. In Alison’s studies, for example, though people could accurately recall how many questions had been asked in their conversations, they didn’t intuit the link between questions and liking. Across four studies, in which participants were engaged in conversations themselves or read transcripts of others’ conversations, people tended not to realize that question asking would influence—or had influenced—the level of amity between the conversationalists.