0
votes
1answer
14 views

VLAN inside Guest machine/domU

hi is it possible to create VLAN inside guest machines? using Xen 4.2 with Ubuntu as dom0,all guests are Centos On host i have 2 bridges in two different VLAN connected to bridge, virtual machine ...
0
votes
0answers
59 views

Best way to divide network?

I own a small company that recently is outgrowing our current network. Currently we have a 10.216.170.0/24 network and therefore only a limited number of available IP adresses. Now, we have a single ...
-1
votes
0answers
18 views

Dell Powerconnect 6200 management access via general mode ports?

I have a Dell PowerConnect 6248/6224P stack with several VLANs, and am trying to set up VLAN routing. I have one port dedicated to my management VLAN (99), but I would like to access it from another ...
0
votes
1answer
43 views

Trunk port needs to be tagged or untagged?

I linking 2 different brand of switches (Linksys & Zyxel) through SPF gigabit connector. g4 1G-Combo-F Full 1000 Enabled Off Up Disabled Off It says the link is up but ...
1
vote
1answer
100 views

Trouble configuring standard VLANs on BNT G8264 and ESXi 5.5

I have a BNT (now an IBM) RackSwitch G8264 and am having problems trying to get standard VLANs configured and working with my two ESXi 5.5 hosts. I've followed the documentation (which can be found ...
2
votes
4answers
114 views

Can one server see traffic to another server inside a VLAN?

Scenario: I have a rack of servers that all belong to the same private VLAN. I transfer data from Server 1 to Server 2. Is it possible for any of the other servers to sniff out the data sent or is ...
2
votes
2answers
127 views

Is it possible to configure a private VLAN on a switch and still access each server via a public IP?

I'm sure this is a very basic/common networking problem. I have 1 web server and 2 database servers that are co-located in a data-center. I have been issued 10 public IP addresses and I have a 10 port ...
0
votes
3answers
84 views

Can I create VLANs when there are subnets already?

I need to have separate subnets in each room but at the same time, I need a few computers (spread across rooms in different subnets) to be in a single VLAN. Is it possible or do I need to rework the ...
1
vote
1answer
109 views

how can I present a network diagram on the building that has 3 floors

How can I present a network diagram on the building that has 3 floors? The requirements are to separate the users in one LAN according to their department, what confuses me is on the second and on the ...
0
votes
2answers
96 views

Why would a traffic flow be on a VLAN in one direction, but not the other?

I've seen PCAPS recently from three separate companies networks where two devices are configured to transmit traffic to each other over UDP, where one side sends a VLAN header on each packet, and the ...
0
votes
1answer
288 views

DHCP For Voice And Data VLANs With Router-on-a-Stick

Background: I have 2 Powerconnect 62xx switches stacked with a Watchguard XTM-26 between them and the outside world. Currently all devices connected to the switch are in the same vlan and the ...
2
votes
1answer
78 views

Hyper-V 12r2 across 2 physical networks

Ok, so first off... I have done this multiple times with VMware and had zero problems so I assume I am missing something in Hyper-V. Hardware I am working with: Single Dell R510 Host Onboard Dual ...
0
votes
2answers
89 views

Questions regarding my network plan

I'm developing an IT infrastructure room for testing purposes. The overall aim is to create a network, which if fully disconnected from the productive environment and several people can come and ...
0
votes
1answer
223 views

How to get 192.168.3.2 to successfully ping 192.168.2.3

With the layout described below, the following is true: either router can ping any host on either subnet 192.168.2.0/25 hosts can ping (and ssh to) 192.168.3.0/24 hosts but 192.168.3.0/24 hosts ...
-1
votes
1answer
2k views

How to set up 2 separate VLANs on one switch (HP v1910-48G switch)

I need some advice on how to set up 2 VLANs (on one switch, I have HP v1910-48G switch) that separate broadcast domain and also share a single internet connection. The two Vlans must remain separate, ...
1
vote
1answer
47 views

VLAN, possible to do this?

I have a Cisco RV110W small buisiness router. Here is a demo of what the administration interface/options: https://www.cisco.com/web/sbtg/gui_mockups/RV110W/default.asp.htm I have 3 devices connected ...
0
votes
1answer
161 views

Creating VLANs between network namespaces [closed]

I want to implement the topology shown in the figure below using network namespaces (ns1 to ns4). ...
0
votes
2answers
93 views

KVM Network configuration + VLAN trunck

I am trying to set up a KVM Based solution, I am having trouble configuring the NICs for the VMs from a bridge based on a VLAN interface. My config below : ETH0 : KVM Host Management : ...
0
votes
3answers
141 views

Centos multiple NICs routing issue

I am having trouble setting up permenant routes for my network interfaces, below my config : ETH0 : 172.23.137.27 Netmask /25 - 255.255.255.128 Gateway – 192.168.126.126 ETH1 : Trunk VLAN - ...
1
vote
1answer
49 views

How can we better pinpoint instability issues on our network?

We have a medium-sized network of 600 users, all on Cisco switches. Where the users are allowed to plug in routers, etc. on the endpoints, so that they can use wireless and/or multiple devices in ...
1
vote
1answer
569 views

Unable to make work both private and public ip network on openvz container in Proxmox

I'm using Proxmox 3, it is a fresh installation. For those who know, I'm using OVH Vrack 1.5 (along with a previous Vrack 1.0). My server has two interface eth0 and eth1, I succeeded to configure ...
2
votes
3answers
559 views

identifying vlan packets using tcpdump

I'm trying to figure out the vlan tagged packets that my host receives or sends to other hosts. I tried tcpdump -i eth1 vlan 0x0070 But it didnt work. Has anyone tried to view the vlan ...
1
vote
2answers
136 views

Is VLAN separation required for multiple networks?

I am setting up a Dell 6248 combining separate switches used previously. I am planning the following architecture: VLAN 1 - External traffic (each server's public interface connects to this) VLAN 2 ...
1
vote
1answer
536 views

New VLAN configuration on Citrix XenServer 6.5

We have an existing xenserver environment I have recently inherited. We have multiple xenserver vlans working that can all talk to each other. I am now trying to set up another network and cannot seem ...
3
votes
0answers
64 views

Configuring Container with bridges and vlans (server only?)

I have two groups of lxc contianers on a server and want to isolate their network traffic for security reasons. I will be using port forwarding so the containers much each have separate IP's. I know I ...
0
votes
1answer
81 views

PC in two VLANs with one interface ping issue

im having a problem with a netkit lab that im wornking on. I have one switcher and 3 PCS (PC1, PC2 and PC3). PC1 and PC3 must be on VLAN 100(100.1.0.x/24), PC2 and PC3 must be on VLAN 200 ...
4
votes
1answer
300 views

Designing segmented LAN with fairly shared hi-speed internet access on a tight budget

With another member of the owners' association, I've been tasked with designing and setting up shared, hi-speed, internet access, for our apartment building. We have very little budget and hope to be ...
2
votes
2answers
569 views

VMware ESX: Unable to delete PortGroup. 1 active ports

At work we have an ESX 4.1 cluster with some vlan's (Port Groups) configured on a vswitch on each host. A lot of these port groups aren't in use anymore so we decided to clean them up. We don't have ...
0
votes
0answers
115 views

Single VLAN ID out of 5 not working in Hyper-V 2012 Cluster / SCVMM 2012 SP1

I am having strange issues with one specific VLAN in a Hyper-V 2012 cluster. The cluster has 3 servers, each one has a "Management" adapter for management traffic and "VM Data" adapter for virtual ...
-2
votes
3answers
102 views

Cisco switch inter-vlan access

I have Cisco Catalyst 2960-s switch and I want to configure three Vlans (A; B; C) I want to : Allow traffic between A and B Allow traffic between A and C Block traffic between C and B or if ...
0
votes
1answer
855 views

Unable to access VLAN host from VLAN interface in CentOS

I am playing with VLAN (Virtual LAN) configuration on CentOS 6.4. I have 2 interfaces, eth0 and eth1. I have configured 2 VLAN interfaces eth0.20 and eth0.30 as #file: ifcfg-eth0.20 #------------- ...
-2
votes
1answer
102 views

VLAN routing setup with VPN on Cisco ASAs

We currently have two ASA5515-X firewalls, what we want to do is dedicate one of them to providing AnyConnect VPN and two site to site VPNs only, with the second ASA handling firewall ACLs for ...
0
votes
1answer
76 views

Provide Internet To Two Networks One Connection

Currently we have one network set to 192.168.1.x and is set via DHCP providing internet to all machines on that network. Recently we've began development on programmable logic controllers that are ...
0
votes
3answers
130 views

make web portal visible on two different vlans on same interface

We have recently set up a new Aterisk pbx server based on our previous pbx (also Asterisk) which was installed by an external company. We've kept the configuration of the server the same, all we did ...
1
vote
1answer
180 views

HP N40L / Intel 82574L VLAN Leakage

This is a follow on from a previous question (Switch sending DHCP packets to wrong VLAN) but the problem turns out that it's not with the switch, but more so in the NIC hardware I believe. Basically, ...
0
votes
2answers
235 views

Sharing internet to Private WAN routing

I'm trying to help out with sharing internet over a private WAN installed between two sites, unfortunately the routers are controlled by a company that won't respond to support requests, but they have ...
0
votes
3answers
376 views

Ruckus wireless AP and Dell PowerConnect configuration problems

We are working on trying to get some Ruckus Access Points to work correctly on our network. Currently our network is as follows: VLAN 10 - Servers VLAN 11 – Computers/DHCP VLAN 12 – Voice VLAN 13 – ...
0
votes
1answer
152 views

VMWare Workstation and network isolation

When I install VNC or some other RAT to a container in my VMWare Workstation machine box, what ways can I prevent access to my local network and other machines on my network. Is this where setting up ...
0
votes
1answer
52 views

Offloading backups to secondary network

I'm trying to solve a problem- Currently, we are constantly backing up and have no budget for additional servers. Our production network is still a 10/100 and handles voip, SQL plus our backup ...
-1
votes
1answer
65 views

Filter incoming span feed to a single vlan

I have a span feed coming in on an un-addressed interface of a linux (centos) box. eth4. The span contains several vlans. I have an application which can grab packets from an interface ...
0
votes
1answer
209 views

VLAN and Active Directory: complementary or substitute? [closed]

I recently encountered a network design that heavily implements VLANs but does not make use of a dedicated identity and access management system such as Active Directory or OpenLDAP. And yet another ...
-1
votes
2answers
195 views

NIC teaming and vlan support in linux

Doeas anyone has idea about vlan support in linux with NIC teaming/bonding.In case of a switch I am not able to communicate however if I remove multiple vlan interfaces from NIC , I am able to ...
0
votes
1answer
488 views

DHCP server with multiple scopes is issuing the wrong IPs to VLANs

We're restructuring our network, and configured our router/dhcp server as follows: # public internet connection auto eth0 iface eth0 inet static address 192.168.10.10 netmask 255.255.0.0 ...
2
votes
1answer
261 views

In what scenarios is untagAll (access) VLAN port mode useful?

On my Avaya ERS2550T switch each port can be set with a native/primary VLAN I can assign other secondary (depending on the mode) VLANs that will be associated with this port. I can configure ports ...
-2
votes
1answer
47 views

vlans communicate with each other

I am setting up three vlans in a cisco router with the following configurations. Vlan 10 Subnet: 192.168.1.0/24 Netmask: 255.255.255.0 Gateway: 192.168.1.1 Vlan 20 Subnet: 192.168.2.0/24 Netmask: ...
0
votes
1answer
81 views

Create non-vlan interface with vlan-interface type name

I have 2 interfaces: bond0 and bond1. bond0 is connected to a trunking port, i.e. will be assigned vlans like bond0.10 bond1 is connected to a static port for vlan 20. So as far as connectivity goes, ...
2
votes
2answers
89 views

VLAN & Communication

I'm working on a project regarding Network Security and I've come to the topic regarding VLANs. I was wondering if it is possible to set up multiple VLANs (VLAN0, 10, 20, 30) in a way that all VLANs ...
0
votes
2answers
357 views

Separate WebBlocker settings, using one Watchguard XTM 505?

I support a school with 3 locations that uses a Watchguard XTM 505. They are implementing a BYOD wireless solution with Aerohive APs, and they will have 3 SSIDs (School, Guest, BYOD). Each SSID needs ...
1
vote
1answer
80 views

VLAN over three switches

We are connecting three offices via fiber optics. For each office we have one switch. In each office there will be one PC which has to be isolated in a VLAN A. There will be other PCs but those three ...
1
vote
3answers
780 views

What do I do with the default VLAN 1 on a 3Com 4210?

I am a bit confused as to how to use the default VLAN on a 3Com 4210. The switch is configured out of the box with all ports on a default VLAN 1. I need 4 VLANs on this switch: 100 - Internal WIFI ...