I have a dedicated server (hosted with OVH / SyS in their Canada data center with 4 additional static IPs - "FailOverIps") that I'm setting up to run KVM on Ubuntu 14.04 LTS as a virtualization host server with a minimum of two (2) virtual machines (1 as a basic host, 1 as a test host)
I've originally set up virtualization on the host o/s with VirtualBox, but changed my mind and decided to go with KVM. Either way, I did NOT have the virtual machines configured to work over the network bridge - I never got to that point in VirtualBox.
My problem is setting up the network bridge to work with KVM - I've looked over the Ubuntu guides (and several across the web) and I think I've over-adjusted the code required in the "/etc/network/interfaces" file. Instead of showing all the mistakes I've made, I'll post the basic bridge setup I have that works for the server:
With the bridge setup above, I can ping the server and it works. It's when I start making adjustments to add in the additional static IPs for any additional virtual machines that I get totally lost. I've read too many different guides and I think I may have "over-coded" the changes to the point that I made it not work. Here's one static format that I've seen:
And here's another static format:
I'm unsure how to adjust any of the "static" samples to fit with the network bridge (br0) that currently works. I've experimented a bit, but I cannot ping any of the "FailOverIPs". Any tips or suggestions would help a lot.
I've originally set up virtualization on the host o/s with VirtualBox, but changed my mind and decided to go with KVM. Either way, I did NOT have the virtual machines configured to work over the network bridge - I never got to that point in VirtualBox.
My problem is setting up the network bridge to work with KVM - I've looked over the Ubuntu guides (and several across the web) and I think I've over-adjusted the code required in the "/etc/network/interfaces" file. Instead of showing all the mistakes I've made, I'll post the basic bridge setup I have that works for the server:
Code:
auto lo
iface lo inet loopback
auto br0
iface br0 inet static
address xxx.xxx.xxx.xxx <--(changed to my dedicated server's IP address)
netmask 255.255.255.0
broadcast xxx.xxx.xxx.255 <--(changed to my dedicated server's IP address + "255")
network xxx.xxx.xxx.0 <--(changed to my dedicated server's IP address +"0")
gateway xxx.xxx.xxx.254 <--(changed to my dedicated server's IP address + "254")
bridge_ports eth0
bridge_fd 9
bridge_hello 2
bridge_maxage 12
bridge_stp offWith the bridge setup above, I can ping the server and it works. It's when I start making adjustments to add in the additional static IPs for any additional virtual machines that I get totally lost. I've read too many different guides and I think I may have "over-coded" the changes to the point that I made it not work. Here's one static format that I've seen:
Code:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx <--(changed to my dedicated server's IP address)
netmask 255.255.255.0
broadcast xxx.xxx.xxx.255 <--(changed to my dedicated server's IP address + "255")
network xxx.xxx.xxx.0 <--(changed to my dedicated server's IP address +"0")
gateway xxx.xxx.xxx.254 <--(changed to my dedicated server's IP address + "254")
post-up /sbin/ifconfig eth0:0 (FailOverIP-1) netmask 255.255.255.255 broadcast (FailOverIP-1)
post-down /sbin/ifconfig eth0:0 down
post-up /sbin/ifconfig eth0:1 (FailOverIP-2) netmask 255.255.255.255 broadcast (FailOverIP-2)
post-down /sbin/ifconfig eth0:1 down
post-up /sbin/ifconfig eth0:2 (FailOverIP-3) netmask 255.255.255.255 broadcast (FailOverIP-3)
post-down /sbin/ifconfig eth0:2 down
post-up /sbin/ifconfig eth0:3 (FailOverIP-4) netmask 255.255.255.255 broadcast (FailOverIP-4)
post-down /sbin/ifconfig eth0:3 downAnd here's another static format:
Code:
# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).
# The loopback network interface
auto lo
iface lo inet loopback
auto eth0
iface eth0 inet static
address xxx.xxx.xxx.xxx <--(changed to my dedicated server's IP address)
netmask 255.255.255.0
broadcast xxx.xxx.xxx.255 <--(changed to my dedicated server's IP address + "255")
network xxx.xxx.xxx.0 <--(changed to my dedicated server's IP address +"0")
gateway xxx.xxx.xxx.254 <--(changed to my dedicated server's IP address + "254")
auto eth0:0
iface eth0:0 inet static
address (FailOverIP-1)
netmask 255.255.255.255
broadcast (FailOverIP-1)
auto eth0:1
iface eth0:1 inet static
address (FailOverIP-2)
netmask 255.255.255.255
broadcast (FailOverIP-2)
auto eth0:2
iface eth0:2 inet static
address (FailOverIP-3)
netmask 255.255.255.255
broadcast (FailOverIP-3)
auto eth0:3
iface eth0:3 inet static
address (FailOverIP-4)
netmask 255.255.255.255
broadcast (FailOverIP-4)I'm unsure how to adjust any of the "static" samples to fit with the network bridge (br0) that currently works. I've experimented a bit, but I cannot ping any of the "FailOverIPs". Any tips or suggestions would help a lot.