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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51 views

Isolate virtual machines from each other and from the internet (VLAN, Mikrotik SwOS)

There is a virtualization server where some of them VMs are assigned a different VLAN ID. There is a switch running Mikrotik SwOS and the virtualization server is connected via one single Ethernet ...
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Layer 2 Broadcast filtering on VLAN? (Access ports on Cisco SG-500-52MP)

This is my first time setting up VLANs on a Cisco so I've probably made some mistakes - would appreciate some suggestions. Thank you in advance. ... From my understanding of switches, when a layer ...
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76 views

GuestVMs in a different VLAN than host in a HyperV Failover cluster

I'm smashing my head against a wall. I can't seem to get my guest VMs to use a different VLAN than my host machine. I have a 2 node Hyper V cluster(2016). Each node has 2 10Gig NICs in a Team. This ...
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Access local vLAN from Azure over IPSec VPN (USG20)

i've an Azure subscrition, i've created a Site2Site VPN and i can ping averithing in both sites. Now i created a new VLAN on my USG20 (Home LAN) and i've added on Azure VPN Gateway as remote network ...
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27 views

OVS Bridge — How to Toggle a Port Between VLANs?

I am an Old School network guy trying to do some development work on an OVS Bridge. I need help figuring out the syntax to toggle the OVS bridge interfaces between VLANs. First, some system ...
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33 views

Ubuntu Routing: Dual Nics with 2 Vlans

I am new to linux routing. I have an architecture similar to this . I realize this network architecture is fundamentally flawed however I am not permitted to change the architecture. I did some ...
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17 views

Routing traffic from bridge to vlan

I have a bridge interface connecting 3 other interfaces. Now I want to route all traffic from this bridge to a vlan interface. How should I go about doing this? Ideally, I would want the traffic from ...
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19 views

Share internet access trough vlan from Hyper-V to ESXi VMs

I spent a few days, trying to solve my problem, and cant find a solution. So, i have a Hyper-V Server, and VMWare ESXi server, connected trough L2 switch (d-link). Only Hyper-V server have access to ...
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29 views

Domain Controller on separate VLAN, no trust relationship

I just configured Domain Controller on separated VLAN, I have two way communication between my native vlan and domain Vlan. My problem is that I cannot RDP to domain controller until I go to DC ...
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13 views

How can I put a WiFi client and an Ethernet client to the same group?

I have wireless interface wl0 and ethernet interfaces eth0, eth1, eth2, eth3 all in the same bridge br0. Now I have to put one of the wifi clients and one ethernet client to the same group so that ...
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107 views

CentOS 7, KVM, bridge, VLAN, bond and no guest traffic

I'm running into an issue where my KVM guests have no network traffic in- or outgoing. After a lot of hours debugging I'm pretty sure I'm missing something essential. What I have a server with 2 10 ...
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In case of ipvlan, how is the interface inside a POD connected to the ipvlan subinterface?

I have a host where some PODs are up and running. The host has a physical interface eno1. I know ipvlan(L3 or L3S) has been used in this setup. If I do ifconfig on the host, I can see the physical ...
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123 views

Bridge over VLAN interfaces causes broadcast storm

I am doing experiments on my Proxmox server. The purpose of the expriment is to establish reliable and fault-torrant communications between two PCs that control industrial equipment. but I am puzzled ...
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60 views

LACP and VLAN routing correct network setup

I am trying to understand the correct way to do LCAP with a VLAN and have all the routing be correct. Hardware OS:FreeNAS-11.2-U7 Server:(2) Intel(R) Xeon(R) CPU E5-2660 v3 @ 2.60GHz 128GB ...
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Vlan and/or routing misconfiguration?

I'm a beginner in system and network admin job and I need help. My company bought two new routers because the ISP router is too basic for our future needs (can’t set routes and vlan on this thing) ...
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37 views

LCAP and VLan on FreeNAS box

I can not seem to get the FreeNAS GUI to come up when I try to use link aggregation. I have been googling for days and I am totally lost as to where I am going wrong. I will list the equipment I have ...
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Ubuntu 18.04: Can't SSH into server's VLAN interface from my Cisco router

I recently configured VLAN interfaces on my relatively new Ubuntu 18.04 server which has two physical interfaces: eno1 and eno2. I have configured them using the netplan utility. My goal is simple: ...
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96 views

How to move multiple, random ports to a vlan on a cisco switch

I'm very new to Cisco networking. We had a Cisco engineer set up vlans on our network switches and then gave us instructions for moving our existing ports to the voice vlan he created. I've moved ...
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106 views

Attach KVM VM to vlan-filter capable bridge

I am trying to use new vlan-filter capable bridge on Virtualization Host running OEL 8.1. It does not support OpenVSwitch out of the box and I think vlan-aware bridge might work. Now I have (...
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26 views

Network setup for VPSs via Virtualizor

I want to generate VPS via Virtualizor. I have block of public IPs, dedicated server and switch. Switch has internet plugged-in directly from ISP - no router on my side. Server with Virtualizor is ...
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185 views

VLAN Config on Mikrotik RB4011

I'm trying to configure the router to have two subnets 192.168.1.0/24 and 192.168.2.0/24. The first subnet is the default and all ports should use this as the default IP range, the second subnet ...
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66 views

DNS A Records Disappear On Multi-NIC Server

I have a 2 Servers running as a top Level DCs on a Parent Domain. They are running DNS for the following addresses. 192.168.1.X (DHCP) 192.168.10.X (Static) I have 2 servers running as child level ...
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84 views

VLAN not working on PFSense (SG 1100) with HP switch (HP E3500-48G-PoE yl)

Recently I bought a PFSense server (SG 1100) and a HP switch (HP E3500-48G-PoE yl). My idea is to create VLANs on the PFSense server, and use them on the connected HP switch. I have found a ...
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FortiGate 60D lan to vlan traffic

I'm trying to configure vlans on my fortigate 60D. I have 4 ports assigned with no vlan, with addresses from subnet 192.168.1.0/24. On one port I assigned vlan 20 with adresses 10.10.20.0/24. I have a ...
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Dell PowerConnect 2724 VLAN frame type filtering issue?

The endless VLAN headaches (and questions), eh? I really have no idea how to title this one, do not judge. I'm currently configuring VLANs on a Dell PowerConnect 2724 switch. Currently, all ports ...
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74 views

Subnet and VLAN addressing in a Datacenter

I am trying to learn Datacenter networking and I am finding it hard to understand best practices for IP Address and VLAN assignment to servers and racks. For my question, I'll assume a typical 3 ...
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117 views

nftables NAT combined with VLANs and routing

My network has a rather complex setup I can't unfortunately simplify, currently it's being half-solved by two different devices (that cause a few other problems) and I wish to replace them with one ...
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17 views

Opensense - Uses route but is directly connected

I have the following configuration: Network Architecture Router 1 (192.168.5.1/28) with Network 192.168.1.0/24 (Opensense) Router 2 (192.168.5.2/28) with Network 192.168.2.0/24 (PfSense) Server 192....
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How can VLAN clients access the internet via a VLAN gateway and an ISP router?

I've got a small network which I've split up into 3 VLANs : 192.168.0.1/24 : the "default" VLAN 192.168.2.1/24 : VLAN 2 192.168.3.1/24 : VLAN 3 I've got a VLAN capable switch, and I'm using a ...
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how to create a high availability cluster using vmware on ovh hosts with vrack

i am planning to create a smal HA cluster on vmware infostructucture on two dedicated OHV hosts running in the same vrack . I have two question vmware related questions if any body have done something ...
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How does VLAN tagging work when the AP is connected to a single subnet?

I've got a wireless access point (TP Link TL-WA801ND). The AP has a Multi-SSID mode where the AP will broadcast multiple SSIDs, and optionally VLAN tag the traffic on each of the wireless networks. ...
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25 views

Radvd runs on vlan(tagged interface) provide multiple ipv6 address for the host

On IPv6 SLAAC, run radvd in the tagged interface(eg: enp2s0.300), then the host vlan interface got multiple IPv6 address, but it's scopes are different. In the case of untagged interfaces(eg: enp2s0),...
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57 views

Multiple virtual interfaces on top of GRE tunnel

I have a GRE tunnel defined on an interface: $ ip tunnel add ap2gre mode gre remote 10.1.0.1 local 192.168.1.2 ttl 255 $ ip tunnel ap2gre: gre/ip remote 10.1.0.1 local 192.168.1.2 ttl 255 $ ip ...
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D-Link DES-1210/28P VLAN Configuration [closed]

Hi i have the below requirement to be configured on DES-1210-28P Create 4 VLANS VLAN 296 VLAN 2910 VLAN 101 VLAN 102 Configure VLANS Port 24 Trunk-Port to allow VLAN 296 & 2910 Port 23 Trunk-...
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42 views

Efficient parallel file transfer between two hosts using mutliple 10GbE NIC ports

I need to regularly transfer large amounts (several TBs) of video files between two servers on a 10G network. I want to decrease the overall time it takes to finish the job. I am running CentOS7. I ...
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63 views

Feasibility of having two independent subnetworks on interconnected switches

I have the following setup, using two standard cheap switches that are interconnected by a long Ethernet cable: |------ SWITCH #1 | [ ] Equipment with public IP 217.x.x.101 (subnet 217.x.x.96/29) | [ ...
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Add a linux network bridge device between untagged VLAN1 and tagged VLAN100

I want to add a network bridge between a tagged vlan device and the untagged vlan1. That doesn't work as I expected it to work. First I want to show the configuration of the network as it is at the ...
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Linux interface not receiving double-tagging traffic on its sub-interface

I have configured qinq sub-interfaces on linux, to receive double tagged packets from switch that it is connected. When I try to ping from the other host, 110.10.20.1 to this interface @ eth2.10.2002 ...
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42 views

Using VLAN, IP A shows (and uses) also raw-device addresses

Setting up a cluster with a private IPv4 VLAN, we have the following problem: IP A says: 3: eno1.4000@eno1: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1400 qdisc noqueue state UP group default ...
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37 views

NTP NIC binding

I'm wondering whether it's possible to setup NTP on a Windows Server running 2012 R2. The catch is that I only want one of the two NICs on the server to be used for NTP. Here's a little more ...
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61 views

Tagged ports on HP switch VLANs

wondering if somebody more experienced with HP procurve switching equipment can answer a pretty basic question for me. I'm trying to segment off 3 ports onto their own little network segment. I ...
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45 views

How do I use linux vlan bridging as ap?

As part of a bigger task I'm trying to build a simple setup: A linux pc 1 (ubuntu) connected to another linux pc 2 wired, and to another device wirelessly. The device and pc 2 should be able to ping ...
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24 views

Restrict a physical NIC or VLAN to a specific process?

On a Windows operating system, is there any way to have an isolated network interface or VLAN, that is only authorized to communicate with specific processes? The interface or VLAN would be ...
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28 views

VLANs and Trunks on HP Switches

long story short my goal is to configure 3 ports on an hp switch stack that can only communicate with each other, and nothing else on our lan. I created vlan 60 with 3 untagged ports. However, when I ...
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34 views

Devices in same vlan cannot ping each other - Possible ARP Issue

The environment is running with Nexus 9K in NXOS mode. Both are in vPC mode and running hsrp with N9K1 active and N9K2 standby. Due to vPC both nodes are running Active/Active for HSRP. Now the ...
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39 views

How to connect two virbr0 on two different KVM hosts?

I have one KVM host with VM's inside which using virbr0 virtual network(10.0.0.0/24). Now i got new KVM host machine for new VM's which must use ip's from same network and to be able to communicate ...
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182 views

No Internet access with DHCP Relay VLANs

I have a router that I can't manage (it is an ISP thing). It is directly connected to a T2600G-18TS (let's call it X) switch. The X switch has a static IP assigned from the routers IP range. I have ...
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645 views

Setting up VLAN: pfSense and UniFi Gear (150w PoE switches, EdgeSwitch 16XG, UniFi Controller, 13 UniFi APs)

I'm have a tremendously difficult time setting up something that seems like it should be easy: VLANS with a pfSense gateway and a bunch of Ubiquiti UniFi gear. The frustrating thing is I've set this ...
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57 views

Configuring iptables when operating KVM virtual machines over a VLAN bridge

I am currently setting up a virtualized environment with KVM that spans across two physical host machines (Host1 and Host2). Both are connected to the same VLAN. The network interfaces on both ...
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248 views

separating three vlans on openwrt

I wanted to make a network with 3 separated VLANs 10.140.1.0/24 10.140.2.0/24 10.140.3.0/24 So I hooked up two routers TL-WR740n with Openwrt installed, and started experiments. First router(10....

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