Proxmox Guests static Ip with DHCP

[evilsephiroth]

Hi to all.

First, thanks for all nice features packed in proxmox. I know It's a huge work and it's really a nice platform also for home server.

I've got a simple problem.

My proxmost has only one ethernet interface configured as bridge.

Host:

auto vmbr0
iface vmbr0 inet static
address 192.168.1.12
netmask 255.255.255.0
gateway 192.168.1.1
bridge_ports eth0
bridge_stp off
bridge_fd 0



1 VM guest(kvm) is configured :

# The loopback network interface
auto lo
iface lo inet loopback


# The primary network interface
auto eth0
iface eth0 inet dhcp

Ip released from dhcp 192.168.1.18. The VM can connect outside lan and ping google.

I want to make this IP (192.168.1.18) fixed inside my lan.
Is there a way to make this IP static retaing dhcp configuration?

I've tried with:
auto eth0
iface eth0 inet static
address 192.168.1.18
subnet 255.255.255.0
gateway 192.168.1.1(my gateway)

Ip is correct but no connection outside...

Thanks in advance

 

[udo]

Hi,
of course you can use static addresses inside the VM - but it's dangerous to take an address from your dhcp-range (can be used by another guest)!

Seems you have an typo: subnet should be netmask.

Another good solution is to use the dhcp-server to give the mac-address of your server every time the right (and same) IP (different from your normal dhcp-range).

Udo

 

[evilsephiroth]

Hi,
of course you can use static addresses inside the VM - but it's dangerous to take an address from your dhcp-range (can be used by another guest)!

Seems you have an typo: subnet should be netmask.

Another good solution is to use the dhcp-server to give the mac-address of your server every time the right (and same) IP (different from your normal dhcp-range).

Udo

First: Yes, it was a typo I've got all address on my router mapped with MAC address so no risk but in ubuntu 14.04 VM configuring static ip, the VM can't access internet.

Second: How can I configure Mac Address -Ip mapping in dhcp-server on proxmox?

 

[evilsephiroth]

nevermind.

My router wasn't refreshing dhcp ip released so I wouldn't see my new ip.

Added mapping VirtualMac-Ip(192.168.1.18==> Mac Address) on router and now my IP is correct with outside access.

Thanks a lot