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Questions tagged [vxlan]

19 questions
4
votes
0 answers

Linux VXLAN Hardware offloading

When looking at several guides to setup VxLAN networks on Linux there seems to be 2 options: Open vSwitch (OVS) Native Linux VxLAN device. When using OVS there is an option to use vxlan encap/decap hardware offloading: $ sudo ovs-vsctl set ...…
eKKiM
  • 1,659
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3
votes
1 answer

VXLAN L3 over Wireguard L3, with VLAN-VNI Mapping

Hoping this is the right place - I originally posted on Network Engineering but it got closed and I was pointed to Server Fault. I am currently attempting to setup a L2 bridge between two sites using VXLAN to provide the L2 connectivity and…
ChownAlone
  • 31
3
votes
0 answers

How to bridge TAP device to overlay network?

I would like to allow OpenVPN users to reach all Docker containers that are part of Overlay network as if they were in the same LAN. The simplest example is 3 containers distributed on 2 hosts, and the hosts are connected through overlay network,…
Mohammed Noureldin
  • 571
2
votes
1 answer

VLAN over VxLAN tunnel in linux

I m trying to extend a layer 2 network (Vlans) over a layer 3 network using vxlan tunnels ... i set up a lab where i have two VMs where, I created a vxlan tunnel between the 2 main interfaces of the VMs I created 2 vlan sub-interfaces under the…
GStaim
  • 19
2
votes
1 answer

microk8s communication - vxlan.calico, bridge and veth

I've configured my microk8s instance (one node). Works well. I've started digging in some linux network internals and I was dumbfounded looking at this: $ ip -c -br link lo UNKNOWN 00:00:00:00:00:00 …
Maciek Leks
  • 121
2
votes
1 answer

How to setup tunnel/vxlan using "ip encap" for ipv6 on Linux?

Using light-weight tunnels allows the same (tunnel)device to be used for many destinations (among other things). For vxlan/ipv4 it works; ip link add vxlan4 type vxlan dstport 4789 dev eth1 ttl 4 external ip link set dev vxlan4 up ip route replace…
lgekman
  • 131
1
vote
0 answers

Complex Network Architecture Trouble

I hope that someone can help me because it's very complicated/messy. I'll explain the situation. I have the 2 locations: SiteA and SiteB. They are connected in VXLAN over IPSEC between them with 2 OPNSense firewalls. The network they share is…
Stefano
  • 21
1
vote
1 answer

Questions on Openstack networking (Neutron) configuration

newbie here who's trying to understand Openstack networking topic. My setup: I have 3 physical machines with Openstack installed and running: - controller (with Keystone, Glance, Placement, Neutron, Nova, Heat and Magnum installed) - compute (with…
Pybubb
  • 13
1
vote
1 answer

Can't add vxlan to bond interface

I'm trying to add vxlan100 to bond0 interface but it doesn't seem to be working Here are the commands. I have a wg0 (wireguard) interface on which I'm creating L2 vxlan100. sudo ip link add vxlan100 type vxlan id 100 dev wg0 sudo ip link add bond0…
Maya
  • 13
1
vote
0 answers

PMTUD/ICMP black hole problems across a VXLAN tunnel

I'm running a Proxmox PVE host and am trying to use VXLAN to connect the machines running on it to various networks in our Lab. However, I'm running into weird MTU-related problems that I don't understand. First my setup. The basic layout is that…
Christopher Engelhard
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0
votes
1 answer

VXLAN with different group but same vxlan id on ubuntu

I'm playing with vxlans on ubuntu 18.04 right now and I just found something strange. I have 2 servers with 4 containers on each. Containers are connected to bridges br1 - br4. There are vx1 - vx4 interfaces connected to corresponding bridges. Whole…
Ondra Sniper Flidr
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0
votes
0 answers

could bonding mode 6 receive traffic load balancing to the slaves

Is the mode 6 traffic will receive load balance relatively according to the slaves interfaces? OS: ubuntu 18.04.6 LTS; bonding driver: v3.7.1; kernel: 4.15.0-213-generic In mode 6, I had setted the parameter bond_arp_interval 100, arp_validate 3 and…
VictorLee
  • 13
0
votes
1 answer

Overlay networks using VXLANs

I have the following connection diagram: I’m trying to share the same broadcast domain among the end devices using VXLAN. The configuration I’m using is this: SERVER 1: ip link add vxlan10 type vxlan id 10 \ local 198.168.4.1 remote 192.168.4.2…
jmog
  • 3
0
votes
0 answers

No ARP response using Unicast on VxLAN Overlay IPs in Linux server configurations

I am trying to setup a basic Unicast VxLAN between 3 Ubuntu 22.04 virtual servers (underlay IPs : 172.16.30.26/24, 27 and 28) running on VirtualBox. No firewalls are active. UFW is removed. After the setup, when I try to ping between the 3 overlay…
nata11
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0
votes
1 answer

MTU Problems with vxnet over wireguard and linux bridge

My Setup: Several Proxmox Hosts with one eth0 connected to LAN via bridge (vmbr0) in proxmox. (Default setup) There is another "dummy" bridge device for internal traffic between Guests (vmbr100). As first guest we have a "Router" VMs on each Host…
cernoel
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