Questions tagged [vxlan]
13 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
- 1,540
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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
- 541
- 1
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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
- 5
2
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
- 21
- 3
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
- 2
1
vote
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
- 121
- 5
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…
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
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
- 3
- 5
0
votes
1 answer
How to configure routing in/out of VXLAN
I have several Linux hosts that are connected using vxlan. Let's call them Host A, Host B, and Host C. The config on each host is similar to this:
# Define a bridge:
cat << EOF >…
mrog
- 101
- 2
0
votes
0 answers
why port redirection and DNAT does not work with vxlan
I need to create VXLAN connections between two computers A (on Debian with IP 192.168.30.1) and B (on archlinux with IP 192.168.30.3)
For that, I did:
On A:
sudo ip link add vxlan1 type vxlan id 1 nolearning remote 192.168.30.3 dstport 33333 dev…
0
votes
0 answers
openstack selfservice network setup
I'm trying to configure the selfservice network on Openstack Wallaby, running on Ubuntu Server 20.04. I have followed the instructions for everything under the "Minimal deployment for Wallaby" section under "Install OpenStack services" on the…
DJR
- 11
- 1
0
votes
1 answer
Network Discovery wont work over OpenVswitch VXLANs tunnels
I have working Openvswitch VXLANs, Recently i noticed Network Discovery wont work over VXLAN tunnels across different Hypervisors. Virtual machines can use all file sharing etc if accessed through IP addresses But not visible automatically under…
topmop75
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