multicast

Hello :) I am running into a weird issue where on a vlan a vm would not be able to find the gateway set (also a VM) using neighbor discovery. After some debugging I found that on the cluster node where the gateway was running, the neighbor solicitation packets from the client were visible on...

Hi, we have a 3-node Proxmox VE 5.2-9 cluster (with CEPH) that is having issues with one of its nodes synchronizing. Connecting to its GUI, the node is online but all VMs are Offline, and starting them results in the message: "Cluster not ready - no quorum". pvecm status (node 1) Quorum...

Hi, PVE 7.4-16 here. It looks like I can't drop this type of traffic at datacenter/node level. Only VM level works. As per Anydesk documentation (and further traffic sniffing) this is the traffic I need to drop: - protocol: UDP - destination IP: 239.255.102.18 (multicast) - destination ports...

Hello, I'm trying to get multicast working with Proxmox KVMs on a bridged network (vmbr0). Setup: - Proxmox 7.3-3 on bare metal with 1 Gbit/s NIC connected to AVM Fritz!box. - VM with yunohost + Homeassistant - tried VirtIO-NIC and eth1000-NIC - Firewall off for VM I tried the following...

Hello! I have fresh cluster install, 5 nodes. I have all last updates. pve-manager/7.0-13/7aa7e488 (running kernel: 5.11.22-5-pve) Setup is 5 IBM blades and CISCO 3110G stack for LACP. If i have "classic" network with linux, a new node can join. If i use ovs config - node cant join and get...

Hey, I'm getting a lot of multicast requests from proxmox, I'm currently running 15 nodes from which 13 are online ( 2 at other location with no network ) screenshot from Wireshark: is there any way I can lower these requests?

Hi Everyone, I have a pair of pfSense firewalls running on the same Proxmox 6.0-6 VE node that seem to lose IPv6 multicast packets after a while. pfSense sends packets to ff02::12: that look like this: 06:48:29.896428 IP6 fe80::9c9f:5fff:fee0:8211 > ff02::12: ip-proto-112 36 06:48:30.164147...

Hello, We are running a simple cluster of two nodes ( pve 5.4.13). After last update ans reboot of the two nodes, cluster lost quorum after few minutes. We made several tests and tried many solutions showed in this forum with no luck. omping command ran on two nodes returned this ...

I've been discussing this with corosync developers and they've told me this: https://github.com/corosync/corosync/issues/465 TLDR: Multicast was only reccomended for corosync 1.x, because unicast was not tested yet For corosync 2.x, they reccomend to use unicast (Proxmox currently uses...

Hi, one of my projects uses a Proxmox unicast cluster at Hetzner. A few month ago Hetzner introduced vSwitches and from my first impression they work very well. Meanwhile all cluster nodes have a bridged interface on a shared vSwitch which is also already used for all VMs. On this interfaces...

Hi We have 2 nodes Dell M630 each node have Qlogic 57810-k dual port connected to Dell MXL stack. These two ports are configured as bond0 (LACP bond). On top of the bond with vlan 20 is configured vmbr interface for corosync/cluster But it looks like multicast traffic is not passing. - IGMP...

Hi, Let's admit we have a 3 nodes cluster. Each node have 2 interfaces, first one (vmbr0) for VMs + corosync and the second one for corosync (via RRP in passive mode) Node 1 Interface 1 : 192.168.0.10/24 GW 192.168.0.1 Interface 2 : 10.0.0.1/24 no GW Node 2 Interface 1 : 192.168.0.11/24 GW...

Hey, I have two servers with a vswitch setup, and a working vlan for ping (unicast). I want to create a cluster so I can move some VMs around. But no luck after two days of trials. 1. Multicast Testing with omping results in failure: # omping -c 10000 -i 0.001 -F -q 192.168.100.1...

Hi, i have three servers on collacation. Trying to get a cluster. Administrators of the collacation say that multicast is enabled in network and check it. But command omping -c 10000 -i 0.001 -F -q 10.22.16.5 10.22.16.6 says "waiting for response msg" all time command is runing. What can i check...

Hello, I have an cluster running in multicast mode and the provider stopped supporting multicast - turned off during switch firmware upgrade and they don't want to enable it again. Is there an procedure to switch from multicast to unicast without braking things and possibly no or minimum...

Hello, i'm facing this problem on my server running proxmox, the server goes down often and if i go to /var/log/dmesg of my lxc container i see this: [96778.325439] IPv6: ADDRCONF(NETDEV_UP): veth102i0: link is not ready [96778.595101] fwbr102i0: port 1(fwln102i0) entered disabled state...

Hello everybody, I'm writing this short article because I spend myself a lot of time by finding the right configuration to get this working. First of all: A 2 Node Cluster is not a very good way to create High-Availability or even Fail-over scenarios because corosync is not able to create a...

Hi, I have a 15 nodes cluster that apparently does not work with multicast, and I would like to enable it. I've read the Multicast notes from https://pve.proxmox.com/wiki/Multicast_notes Multicast IS enable on my network, I tested ssmping on all nodes without issue. I have 3 proxmox...

Hoping someone would be able to assist, I'm trying to configure a 3 node cluster, 2 nodes on the same physical network, and another node remotely. this other node sits behind a Pfsense firewall that has a site-to-site vpn connection to my pfsense router. i'm able to cluster the first two...

Hi, I'm having a strange issue on my proxmox4.3 cluster: from time to time all nodes appears red in web GUI. Gui also sometimes is not reachable at all and I have to restart nodes.. I figured out that the logs always shows these lines, even if all is marked green: Reading the forum have lead...