dhcp

Hi all, we're trying to improve the robustness of our IT deployment by moving one node to an offsite location. The nodes will stay in the same subnet using a site-2-site VPN handled by the external firewall. A test setup of this works already, but one potential issue has surfaced: When a VM is...

I am unable to have the ISC-DHCP server to serve non-VM clients with IP adresses. VM clients do get served correctly. I see the DISCOVER but the physical clients does not get any OFFER's. Is there any firewall rules that cause this? My PVE 8 have default network settings. Any idea or...

Having an issue with VMs and LXCs not being able to get onto the network (outside cluster) or get DHCP over a bridge, either directly on the bridge or through SDN VNet. Initially, the firewall was disabled. I enabled it (proxmox-firewall) and added rules for DHCP, but this has not changed the...

I am using the default PVE IPAM plugin with DHCP. I have one zone with a couple of VNets defined, each with separate subnets and certain reserved IPs: For the sake of this post, assume these are all VMs that are configured with DHCP, so they ask for a lease and normally get those static IPs...

We've got an installation of pfSense inside a Proxmox VM, and after upgrading to Proxmox 9.0, VMs inside the same cluster suddenly fail to get IPs via DHCP. We don't have the firewall enabled either. Does anyone know what's going on there?

Hello everyone, I’m running into a serious issue with DHCP when using the Proxmox VE firewall. I want to summarize the problem here and hopefully get confirmation or solutions from the community. Setup: VM: Ubuntu 24.04 Proxmox VE: latest stable release Network setup: bridged (vmbr0) VM...

Hi all! I've installed the new PVE 9 on a small testing machine, made all the updates from the no-subscription repository and installed dnsmasq and disabled the service. I intend to use it as DHCP and DNS in the SDN zones. All following steps are without any VLAN. ERROR: The containers don't...

Hi All, I have run into curious behavior of DHCP under SDN. I have followed the setup based on this page https://pve.proxmox.com/wiki/Setup_Simple_Zone_With_SNAT_and_DHCP. My vmbr0 is 172.31.255.240/28 with DHCP range 172.31.255.241-172.31.255.249 When I start VM the network interface doesn't...

After changing /etc/network/interfaces on a fresh install to: iface vmbr0 inet dhcp and running ifreload -a I'm receiving an error message: vmbr0: cmd '/sbin/dhclient -pf /run/dhclient.vmbr0.pid -lf /var/lib/dhcpdhclient.vmbr0.leases vmbr0' failed([Errno 2] No such file or directory...

[Hope I'm not doing anything wrong here, but this post was awaiting admin approval before it could be shown publicly and I'm not quite sure why, please let me know if this breaks any rules] Hi, I've been scouring the forums for a solution that would allow me to use the DHCP plugin (only for...

Hi I installed pi-hole on a VM on Proxmox and enabled DHCP. All other VM's und CT's on Proxmox can get IP addresses. But other hosts in my home network do not get a IP address. All firewalls are disabled in Proxmox. Any ideas? Thank you

Need some assistance setting up a proxmox SDN subnet with DHCP. I've got the following configuration: tldr: subnet called `nexus` with range `10.10.0.0/24`. Gatway `10.10.0.1` and DHCP range of `10.10.0.{20-254}` root@goliath:~# tail /etc/pve/sdn/*.cfg ==> /etc/pve/sdn/subnets.cfg <== subnet...

Hi Everyone, As an exercise, I have a 3node cluster running a simple SDN setup. I disabled autoDHCP and setup a windows DHCP server. When I install a client machine on a different node it is unable to get DHCP but when I migrate it to the same node as the server it works. I have disabled all...

I have a Proxmox VE 8.3.0 running on a machine that has a single, statically configured IP address. Guest OSes do not have Internet access. How should I set up NAT and DHCP on a Proxmox host to provide guest VMs with Internet access? There are multiple tutorials over the Internet, but many are...

Hallo Ihr Lieben, ich habe mir ein Proxmox Server installiert. Dieser Server hat 2 nvme Disk mit jeweils 1TB. Auf einer Disk ist das Hostsystem installiert. Dann habe ich noch 2 Stück 12TB SATA Festplatten die in den HotSwap Schacht stecken. Diese sollen als Data Storage dienen. Weitere 10...

I am running a Proxmox Cluster in a nested Hyper-V environment. After the installation I login and create a Windows VM and assign "vmbr0" as the Network device. But inside the VM I am unable to get an IP address. The Proxmox is connected to the network and is able to access the...

I'm trying to setup a isolated VLAN network with SNAT so containers and vm's can reach out to the internet. Using SDN I: Set up a VLAN zone connected to vmbr0 Created a vnet connected to the zone with tag 100 Created a subnet connected to the vnet with subnet 10.10.10.0/24 and enabled SNAT...

Apparently my LXC is not renewing DHCP leases. From time to time the IP address gets released and `eth0@if9` loses the IP. I can't figure out why. I've seen similar posts and have been trying to fix it with no success. I used to have 3 network interfaces set in the Proxmox UI, but recently...

I replaced a node in my cluster with a new system and after getting the system up and running as well as a part of the cluster, I migrated two systems to the new node and now those VMs can no longer get vlan/IP configuration from the gateway. This was not an issue with the previous node that...

I am having an issue getting a pfsense DHCP relay to work across my proxmox cluster. My network is as follows: vmbr0 -> 192.168.12.0/24 - home internet (this is where my proxmox clusters are connected to vmbr1 -> 192.168.2.0/24 - virtual interface connected to a smart switch for VLAN 4...