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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What's the correct way to set up a network with multiple upstream routers? [closed]

I have a physical network topology that goes from Modem, to OPNSense Router (subnet 192.168.0.0/24), to L2 Managed Network Switch, to Various LAN clients, including TP-Link Router (subnet 192.168....
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How do I configure wireless VLANs on DD-WRT such that different wireless devices are in separate VLANs, e.g. salesVLAN, supportVLAN, etc.?

I have a wireless AP running dd-wrt. I have mobile phones, tablets, laptops, a printer and a scanner that all connect to the Wifi. Is it possible to apply VLANs to the wireless AP such that different ...
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Can I safely add an external network to an existing NIC on XenCenter Pool?

We have 2 servers with 2 NICs each: NIC 0 has our "Office Network" which is used by the Management interface and our VMs NIC 1 has our "iSCSI Network" for storage Both networks ...
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Multiple VLANs Same Port: Bandwidth Usage [closed]

I came across a network that looks like the following: In order to have the server access to both the public internet and internal network (but without depending on the internal router) one port of ...
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Direct specific vlans to specific WAN connections (2 ISP ,using USG Pro 4)

ISP-A : 1Gbps fiber line static IP address and ISP-B : 1Gbps fiber connection with dynamic IP address. We wanted to know if it was possible using static routing to create a method to direct specific ...
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NAT between 2 LAN interfaces in Opnsense?

I'm not a network pro so some of my terminology may be off. I've tried to explain what I'm trying to achieve in different ways to hopefully make my request more understandable. I have Opnsense running ...
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Change Cisco Management VLAN

I currently have the following configuration. A Checkpoint firewall (which is the router) and 12 Cisco 9200 switches. SW1 is connected to the firewall. I need to change the MGMT VLAN from VLAN20 to ...
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Mikrotik cloud router with vlans routing

I have a MikroTik router configured with 30 VLANs, all passing through a trunk via a bridge. The router provides internet access via three PPP links with load balancing, and also local services to ...
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SAN VLAN configuration

I'm repurposing an old SAN device for some additional non-critical storage on a VM on a 3-host S2D cluster. I can't dedicate the switches at the moment like what seems to be recommended so I need some ...
Crimsonfox's user avatar
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vlan on top of vlan-aware bridge: possible and how?

I'm currently working on configuring an opensuse host as a KVM hypervisor. I have a physical interface as slave for a bridge. I'm going to make this bridge interface vlan-aware and handle the VLAN-...
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Routing webserver access between LAN and VLAN

I have a LAN set up with IPs 10.0.0.X and a VLAN with 10.147.18.X (Zerotier) and I have a webserver (Plex) that is accessible within the VLAN. I have a ubuntu 22.04 pc connected directly to the LAN ...
Bill's user avatar
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NFS across vlans

I am trying to mount an NFS share from a known good NFS server across separate vlans. The nfs server resides in the vlan 105 and the client is in vlan 202. I can ping, ssh, telnet to port 2049. ...
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How do I achieve a guest wifi set up with a Draytek AP810 and a Netgear GS728TPv2?

We have recently moved offices and so our facilities are bit more limited than they were before. We have a basic internet router (a BT Smart Hub for UK people) that doesn't have VLAN options and 4 LAN ...
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Multiple VLANs with Intel I211 and 82576 chips

I'm using NICs based on Intel I211 and 82576 chips and I need to create multiple VLANs. I read online that I can use Intel tools instead of creating virtual switches with HyperV in Windows 10/11, but ...
Dark Corner's user avatar
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OpenVPN via OPNsense in Hetzner Network

I am trying to set my openVPN server via OPNsense installed in the hetzner cloud in order to get access to the hetzner's internal network. The hertzner's internal network structure is separated by ...
cd4user's user avatar
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How is it possible to connect multiple devices using the same IP to a machine with multiple interfaces and have them all work?

Long story short, I am a bit over my head with this task as I'm not incredibly well versed in networking and complicated network config. I have a few ideas, but want to avoid wasting time. Background: ...
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NIPS appliance 100 MB limit pcap find vlan id tag

Background I have a Network IPS Appliance at work. The configuration is not well documented and I want to work out what traffic has been configured to flow through which interfaces. The network is ...
user3223819's user avatar
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tcpdump expression to collect vlan tag id only

Is there a tcpdump expression that collects the vlan tag id only? I have an interface that has multiple vlan tagged traffic flowing through it. I can write expressions looking for IP pairs, or ...
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Plug in multiple devices with the exact same IP to one Linux host

I have a need to have multiple devices with same IP address connected to the same host. I am attaching a photo to demonstrate the topology So on the host side the IP is 192.168.19.1 and on the 3 ...
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Should VLANs and AD match organizational chart for implementing 802.1x with Dynamic VLAN?

I am experiencing an issue while trying to understand the best way to implement 802.1x (EAP Chaining with AD as the identity service) in a corporate environment. The following questions have arisen ...
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Host A in VLAN is not responding to ping from host B, but host A can ping host B

Overview: I have a issue where one host A in VLAN is not responding to ping from host B, but host A can ping host B . A= Windows and B=Linux, VLAN=10. A IP address = 192.168.10.100, B IP address = 192....
SDut's user avatar
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AlmaLinux 8.8 vlan doesn't work after system restart

I have created a vlan on AlmaLinux 8.8 using nmtui and it is working. I could ping other ip in vlan. After restart ping doesn't work on vlan ip, and linux doesn't answer on any port on vlan ip. On ...
Janusz Januszkiewicz's user avatar
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whitelisted VLANs with L3 Managed Switch routing

I have a basic setup for self-learning purposes. I'm a developer but trying to also understand the other side of IT managing networks. I mean learning case I have a single managed L3 switch. To it are ...
tacoshy's user avatar
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Aruba 1930 to build Lab Network separated from office network

Here is the network i need to build for our company lab: Note: All is centered on the Aruba 1930. Network A - 192.168.178.xxx/24 Port 25 on Aruba, SFP+ 10 Gbps -> Cisco SFP+ Gbps -> Router -> ...
Sacha Weichel's user avatar
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Migrate from /etc/network/interfaces to netplan

I am trying to migrate from /etc/network/interfaces to netplan and network-manager setup. I am "almost" there. My current setup with /etc/network/interfaces is as follows: auto lo iface lo ...
Taavi Ansper's user avatar
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1 answer
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Docker macvlan container has no internet access while running tailscale on host

I have the need for a Docker container that is visible in the host network with its own ip, mac and hostname advertised via avahi. (I want to use wire-pod without changing hostnames and stuff on my ...
thirstyturtle's user avatar
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336 views

Inter-VLAN connection issues when devices use Wi-Fi and OPNsense router

I am trying to segregate devices in my home network with 2 different VLANs: HOME and IOT. I have the following network devices: 1 cable modem 1 OPNsense router with WAN, LAN and OPT1 ports 1 Netgear ...
vascaino's user avatar
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557 views

Devices keep getting IP from previous VLAN

Some devices (printers and laptops) that are moved to another building with a different VLAN will not release the IP address assigned. I noticed this first when a laptop reported no network ...
Rick's user avatar
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VLANs and Bridges on Debian to share the same address

Right now I have a simple topology with the debian gateway, few managed switches and access points. I'd like to add 3 VLANs to my topology and maybe use 802.1Q on debian gateway, so that all the ...
EasyMoney322's user avatar
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MACVLAN Docker containers on Synology NAS with 2 VLANs cannot reach the host

I have 2 VLANs on ETH1 port on Synology DSM 7.2. I use the MACVLAN driver, so my containers look like "seperate computers" on the network. I can reach the container from the network and I ...
Ellessar's user avatar
1 vote
1 answer
529 views

Unable to create a Linux bridge with a VLAN interface on Fedora

I'm trying to set up a Linux bridge that includes a VLAN interface on my Fedora system. My goal is to use this bridge with virt-manager to create multiple VMs, each with an interface in the bridge ...
a-kodez's user avatar
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NPS Dynamic VLAN Catch-All

I have radius MAC authentication with dynamic VLAN setup on a WPA-PSK wireless network to easily put different IOT/VOIP devices on various networks that may not support our WPA-Enterprise network. ...
RealJoshLee's user avatar
1 vote
1 answer
902 views

VLANs with ESXi over physical switch

I'm trying to setup a VLAN across my ESXi network and my physical switch network, but fail to get the VMs on the ESXi port group communicate with physical network. Specifically, my VM doesn't see ...
kyle's user avatar
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VLAN - cable between two different vlans

I've got two "Aruba instant on" switches, and am practicing working with VLANS. I'm only configuring switch A, and pinging switch B to make sure I have a connection. My PC is hooked up to ...
Daniël van den Berg's user avatar
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Intermittent workstations with no network connectivity

I have a campus wide network with ~10 workstations around campus(not from the same switch) that can't connect to the internet/network, they are successfully acquiring an IP address from the DHCP ...
Skipbo's user avatar
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Nothing but DHCP works after testing SR-IOV on Mellanox ConnectX-4 Lx

I was following the Proxmox guide for enabling PCIe passthrough and SR-IOV for my NIC, since I am running Vyos in a VM as a router. However, after undoing all the changes the NIC is not working ...
VMelnalksnis's user avatar
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Unable to connect IBM Flex compute node to network

I am having a problem wiht configuring IBM/LENOVO FLEX SYSTEM's networking. The problem is that the node sees 9+ different interfaces where 2 are active but without a connection. We bought the system ...
Crazycrafter 227's user avatar
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Tagged VLAN not working on TP Link TL-SG1016PE

Draytek AP 960CTP Link SwitchesHPE SwitchDrayTek 2866enter image description hereenter image description hereI have created an additional VLAN upon my company network, configured exactly the same as ...
Chimera_t's user avatar
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DHCP response not getting to VM when using a VLAN on Proxmox

I recently installed proxmox on my server, and now I'm trying to get networking in order. The problem that I have, is that for a certain VLAN, the DHCP response from my DHCP server doesn't seem to end ...
NSV's user avatar
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Assign a VLAN directly to a physical interface

does anyone have an idea how to assign a VLAN ID to a physical interface under Linux? More specifically I have a proxmox server on which Opnsense is virtualized. There are VLANs set up and on a ...
Jonathan's user avatar
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Is it possible to bypass linux bridge device and assign linux vlan directly to bridge member on proxmox (Debian)?

I came up with the following situation. We have a Proxmox node with a 40gb Mellanox QSFP+ card connected to switch. The 40gb interface is added as a slave to vlan aware linux bridge. To that bridge ...
The amateur programmer's user avatar
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netplan parents inteface of vlan has dhcp. i want to disable

i use netplan to assign ip address with vlan on my ubuntu 22.02. i disabled dhcp for enp2s0 which is parent of my vlan.20. But It has dhcp random ip addresse. I want to disable. how to do this? $ cat /...
daniel's user avatar
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1 answer
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Connecting to OpenVPN blocks access to local VLANs on different subnets

When I'm connecting to an OpenVPN provider, such as NordVPN, I lose connectivity to my local devices which are configured on another subnets. Eg. the computer connecting to NordVpn is on vlan A which ...
M.Parent's user avatar
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1 answer
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How to properly include vlan configuration for preexisting OSPF routing in PT

I am using packet tracer to simulate an enterprise setting. There would be a "main" office (marked as Bgta) and other minor offices in other cities, such as Mdlln. In the main office there ...
sar's user avatar
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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, ...
Michael Smith's user avatar
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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 ...
Aleksandarf's user avatar
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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: ...
Aleksandarf's user avatar
1 vote
1 answer
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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. ...
SenseiRalph's user avatar
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632 views

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 ...
violetflare's user avatar
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122 views

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 ...
Brian Lamb's user avatar

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