Questions tagged [vlan]
Group of hosts with a common set of requirements connected as if on the same broadcast domain despite physical location
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COMO COMUNICAR 2 VLAN EN SONICWALL
Good day,
I would like your help since I have a NSA 5600 sonicwall and I create 2 vlans on the interface x0 X0:V2 with ip 10.0.0.2/24 and X0:V3 10.0.1.2/24, but at the moment I can place 2 computers, ...
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Redirect traffic in "sniff/tap?" mode to specific ip address(es), that is: rewrite destination headers to target other machine(s)
I have incoming traffic on eth1 (vlan id 201) which is emitted by another machine which is doing
sudo tcpreplay -x 0.01 --loop=0 --intf1=eth12 Wireshark_bidirectional_data.pcap
I would like to ...
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Redirect incoming UDP traffic to a local ip adress (iptables?)
tcpdump works as expected on my machine.
tcpdump -i enx00e04c04009e -Uw - | tcpdump -en -r - vlan 201
17:52:51.447340 04:01:30:00:00:16 > 03:00:03:00:04:00, ethertype 802.1Q (0x8100), length 66: ...
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How to connect to host in a different address range and VLAN
We have an industrial machine that has an intergrated web server we can connect to for changing parameters. The machine has an address in the 172.29.x.x range. My address is in the 192.168.x.x range. ...
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Is it possible to forward with UFW from a machine connected to ZeroTier VPN and situated on the LAN towards another machine on the LAN?
I am attempting to make possible for any machine connected to my VPN to be able to access services within containers on my server.
For this I have set a server with PROXMOX and subscribed to a Free ...
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Aruba to Juniper EX4200
So I have a bit of an unusual situation -- I'm trying to use a EX4200-48-PoE juniper switch with our Aruba (HP) network in place -- just as a transitional move as we're doing some construction to give ...
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Strange issue with bridges on Ubuntu server and libvirt; looks like MAC address conflict
We have been using bridges and libvirt VMs for a long time (starting with Ubuntu 16.04). Recently, we have encountered a problem with bridges (on VLAns). We have not yet identified what conditions ...
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linux tc + vlan interface
This is my tc simple script. It limit bandwidth based on source ip address and use hashing filter based on /24 subnet. This example filter works but only when this example subnet 10.118.0.0/24 is add ...
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Why I am getting wrong IP address when connected to the freeradius server with VLAN attribute set
I am new to the Freeradius
I am trying to connect to the Unifi AP through freeradius authentication. I can connect to it successfully and access local services. but I am not getting the correct IP ...
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linux DSA switch w/ Vlan-aware bridge setup
I'm working on a use case that SoC w/ only one ethnet port(eth1) connect to a SJA1105 switch chip. As mentioned in linux kernel documents, the DSA mechanism will take eth1 as management port and have ...
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Attach two network interfaces in a KVM guest to two VLANs in a physical switch through a single-interface host
I have installed a Debian-based VM with two network interfaces, one with one public IP and another with one private IP. I can access public gateway IP and beyond from the public interface (native/...
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Two networks, two WANs, two VLANs, one set of switches?
I have a standard corporate network with Active Directory, and I have an outbuilding for the local community college. We run off port 1 on our modem and run straight into our Palo Alto, which then ...
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Adding new wifi vlan to Mikrotik router - cannot ping
Previously I had vlan 10 (Wifi) and 20 (Management) already set and working correct for this setup: Mikrotik router RB2011iL, D-Link switch with trunk ports for both vlans, couple of Mikrotik CaPs and ...
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How to properly setup a Guest Network on the TP-Link EAP115 AP?
I have a TP-Link EAP115 Access Point. I would like to setup a guest network, so that people who come to my house and use the WiFi cannot port scan the rest of my network. And I really only care about ...
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Tagged port does not work (switch netgear)
I have configured 2 VLANs with firewall (pfsense), but when I set port as tagged in each Vlan, every device lost wan connection and even IP address... I have no idea what could possibly be wrong. ...
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How to properly configure vlans on an interface in Linux?
I want to configure some vlans on an interface of a Linux VM.
The Vlan is already configured on the hypervisor and the port is marked on the switch.
I installed the "vlan" package on Linux ...
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Segregating Docker Services on Separate VLANs
I have a question related to network segregation of Docker containers. Hopefully the picture below illustrates the issue.
I am using UniFi equipment on my network which is currently managed on default/...
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VPN instead of VLANs
My network have about 8 thousand user, who work in multiple buildings. There is frequent employee turnover, which currently forces changes in the configuration of vlans on the switch ports. In ...
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OVH vRack + managed Kubernetes service and public connectivity
I deployed a K8S test cluster in OVH via their managed services, as I aready have some Public Cloud services that I would like to migrate.
I set the cluster network as private with OVH gateway with ...
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How to extend amount of VLAN's via external Managed Switch on Linksys WRT Router on OpenWRT 21
Goal is to create more than 4 VLAN's leveraging external ports on Managed Switch all under control of the Main Router (Linksys WRT with 4 built-in switch-ports) running OpenWRT 21.
Linksys Managed ...
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Assigning single DHCP server for multiple subnets on vlans (dnsmasq.conf)
I have 3 hosts each connect to a different VLAN, the DHCP server is working fine, it gives all hosts dynamic IPs. My issue is when it comes to iptables rules I can't prevent host 2,3 from a specific ...
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debian Linux QinQ (vlan stacking)
I am trying to create stacked VLAN interface on a debian 10 server. Here is what I have placed in the /etc/network/interfaces:
iface enp34s0.300 inet manual
address 0.0.0.0
netmask 0.0....
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untagged traffic must become tagged traffic after passing through the bridge
I'm trying to achieve something simple.
I have a machine which has a single physical port enp89s0. this is connected to the native VLAN (VLAN=1).
I need to create VMs and place them on a separate VLAN=...
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How to configure a /27 subnet on vlan Centos 7
I have a dedicated server running Centos 7.
I purchased a /27 subnet from my hosting provider. They said:
"Your /27 subnet should be acceptable over vlan-interface with tag 18."
I asked them ...
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How to connect to PLC that has an unchangeable static IP and no gateway
Summary
I've got a PLC that has a static IP I can't change and a gateway that can't be set. I need to be able to talk to the PLC over TCP on my corp network. Seems like a good candidate for NAT...
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pfSense VLAN tagged and untagged packets on one interface
I'm running into an issue here, I'm sure I'm being a fool but after 4 hours thought I'd see if anyone can quickly educate me!
I have a new pfSense. Its going into an SMB client who currently only have ...
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Possible STP Issue with Cisco SG350 Switches
we are having a weird issue with a network of Cisco SG350 Switches that I cannot figure out. We are thinking it may be related to STP but have verified all the normal problem points (i.e. proper ...
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ipSec VPN configuration, VLANs advertised
We are in the process of setting up an ipSec VPN between 2 locations. There are various encryption methods, algorythms and preshared keys to set up. Network1 will have access to specific VLANs on ...
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Route OpenVPN traffic via vNIC
I'm cracking my brains on the following, and I hope you guys can help me out.
I'm trying to setup an OpenVPN server on a Raspbian distro. Since I'm also using this server as a DNS server in multiple ...
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WinRM connectivity issues with workgroup and vlan subnet
Situation:
1 server (Windows Server 2022) (192.168.15.5)
1 client (Windows 11) (192.168.5.5)
Unifi network setup where both machines are on a different VLAN (subnet)
On the server:
Run Winrm ...
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Using a VLAN in embedded linux and although a response is received no entry made in ARP table
I need to set up 2 VLANs, but I have this issue even with only one configured (.2) but when I set up the other VLANc (.1) it seems to work ok.
The issue is that ARP doesnt seem to work which sort of ...
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Linux: Why is ARP not answered via VLAN Bridge
Our Goal
We want to run a server with several QEMU VMs, some of the VMs should be connected to separate VLANs. The host is connected to a switch via bonding and should have a VLAN-aware bridge where ...
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Accept all vlan tagged traffic on interface
I have the following setup. It is an ongoing setup to migrate my network in seperate vlan.
My issue is I cannot contact the ubuntu server from my laptop while connecting of wifi_admin(vlan10) but I ...
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How to create and attach vlan with guest vm in kvm
I have one centos7.0 machine on that I have provisioned two guest vm(centos7.0). two bridge configured in the host machine I have to create one vlan and attach to one of the bridge and guest vm ...
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Is it possible to setup VLAN on host without NIC hardware support?
We have a group of clients connect to an Arista switch with DHCP enabled. And we want to setup an additional private VLAN so that those clients can communicate to each other through pre-defined static ...
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What is the fastest way to isolate when VLAN tagging in enabled when it should not be?
I have run into this issue several times over the years:
a Linux server is not configured for VLAN tagging
It is connected to a switch that has 802.1q VLAN tagging on traffic going into the server.
...
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How to access the SVI of a switch through a IPSEC tunnel?
I'm adding a new router, firewall and switch to our brand new site, and I'm scratching my head with the configuration of the SVI.
In the other sites, there is 4 VLANs on the switches:
1x VoIP (DECT) -...
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VLAN interface is not acquiring specified IP Address using systemd-networkd on Ubuntu
My configuration is:
The files in /etc/systemd/network:
File: eth0.1.netdev
[NetDev]
Name=enp2s0.1
Kind=vlan
[VLAN]
Id=1
File: 30-static.network
[Match]
MACAddress=b8:ae:ed:eb:b9:2c
[...
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dnsmasq, one host on multiple vlans
I have dnsmasq configured to serve static dhcp on two networks; one on the primary interface and one on a vlan attached to the primary interface. The interface config looks like this:
3: enp2s0: <...
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Virtual Switch of Hyper-V remove outer tag of QinQ packet using both 0x8100 EtherType
I have vyos virtual machine using one network adapter in Hyper-V server. I configure the only network adapter to trunk mode:
C:\> Get-VMNetworkAdaptervlan -VMName $VM | fl
VMName : ...
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Why this physical interface does not have a VLAN-tagged subinterface?
Using our SonicWALL NSA 3600 and doing some cleanup, I noticed that one our physical interface, the X5, does not have a subinterface for the VLAN 7 (VoIP VLAN). Instead, it has the gateway IP of the ...
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LAN / vLAN security implementation to allow limited internet access
I am a programmer with limited knowledge of network administration so please bear with me.
In our office, we have two vLANs, vLAN10 and vLAN20
WAN > [Router] > [Cisco Switch] > [vLAN10 and ...
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Selecting a network switch for basic VLAN use to segment logical networks
I want to change my small office networking setup to use VLANs. Currently all users are on the same network with different group users sitting in the same room. I thought VLAN would be just the cure I ...
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Debian 10 network configuration not applied on boot or link reset
I am missing something on a Debian 10 server: my network configuration is not applied on reboot or after the link is reset.
In my case, the server has two interface: eno3 (public) and eno4 (private). ...
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Private vlans trunk mode for isolation Proxmox VE VM
I tried to isolate the VM of PROXMOX VM 7.2 using VLANs.
Every VM has its own VLAN.
But for unite many VLAN to one ip subnet with real ip address I try to use Private VLAN with switch VDX-6720 NOS 4.1....
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tcpdump and lenght with VLAN
I run ping:
ping -c 15 -s 120 -D 192.5.15.22
The same time I watch tcpdump:
tcpdump -n -e -vv -ttt -i iavf0 vlan
tcpdump: listening on iavf0, link-type EN10MB (Ethernet), capture size 262144 bytes
00:...
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Shared network attached storage - trunked with multiple vlans?
I am introducing an NFS server which I would like to share with KVM guests across different VLANS. I am trying to find a solution which would strike a good balance between function, serviceability, ...
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DHCP C class subnet enlarging
We have vlans to separate traffic. Our wireless network is a separate vlan such as scope ID : 192.168.100.0
So we have been using 192.168.100.0 sat on 255.255.255.0 netmask vlan100.
With in the scope ...
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Linux: bridge vs. vlan vs. tcpdump
I have a Proxmox host with kernel 5.15.19-2-pve.
It has a bond0 interface made from eth2 and eth3, which receives vlan tagged traffic.
I created a vmbr666 bridge that shows looks like this:
# /etc/...
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Cannot connect macvlan to the internet
When I tried to connect macvlan to the internet and it was not successful.
I used namespace to accomplish that. I also checked the comments on this question - How to connect macvlan to the internet?
I ...
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