Proxmox and DHCP server

[riky67]

Hi
I have two questions:
1) I have encountered a serious problem. I installed the server with dynamic ip Proxmox
My DHCP server has issued an ip to my Proxmox server but then issued it to another device. Why?
2) I can not change the address to connect to the server Proxmox. Remains fixed as detected during installation. dhcpclient command me to assign a new ip but not reachable
grazie

 

[tom]

you need to use a fixed IP for your Proxmox VE host, dynamic IP´s are not supported.

 

[jmace]

Does ProxMox use an internal DHCP server to assign dynamic IP's and DNS settings to its virtual machines. It seems as though every time I assign a bridged or NAT interface to my machines (Windows or Linux), the interfaces are always assigned 192.168.1.12 and 10.0.2.15, respectively. How can I get ProxMox to assign these interfaces dynamic addresses out of the box without having to set up a DHCP/DNS virtual machine and have all of my other virtual machines use that.


Thank you in advance,
Jim

 

[dietmar]

Does ProxMox use an internal DHCP server to assign dynamic IP's and DNS settings to its virtual machines.

No.

 

[jmace]

What's the better way to set up DNS/DHCP through a virtual machine where all of the machines connect to this machine, or set up DNS/DHCP on Proxmox binding to eth0?

 

[yozh]

No.

I dont understand this answer, where is the Guest machines get its IP from ? the DHCP server listed in the ipconfig is 10.0.2.2 which is Proxmox IP if you SSH from with in the virtual machine, how is this IP assigned to the VM ? I need to modify the range and some options where do I do that ?

 

[r4pt0x]

What's the better way to set up DNS/DHCP through a virtual machine where all of the machines connect to this machine, or set up DNS/DHCP on Proxmox binding to eth0?

I'm using an openVZ container (debian) as dedicated DNS/DHCP server. The Proxmox host uses only fixed IPs for all essential configurations and also for VMs. Only network clients rely on the DHCP/DNS server.
This way your proxmox host and it's VMs will start up and run even when the DNS/DHCP service/server is not available and you could access them from a client with fixed IP configuration for maintenance. If your VMs and/or the Proxmox host would rely on DHCP and it fails, you will have to get local access to the server.

If Services on a VM need a working DNS/DHCP, set up this VM to start up with a delay (Options -> "startup/shutdown order" "order=any,up=30" for 30sec delay on boot)

 

[Vishnu V Nair]

Hi I would like to forward Port 53 of my virtual machine for dns . i am using shorewall firewall along with Proxmox Virtual Environment 4.3-1/e7cdc165 . I am able to forward all other port other than 53 to internet from my VM . and it is also possible to map the local port of VM 53 to WAN Port 54 or to any other port . Plz suggest me a way to open 53 on VM , Thanks .