Group of hosts with a common set of requirements connected as if on the same broadcast domain despite physical location

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3
votes
1answer
272 views

VLAN isolation failure with HP Procurve, Juniper Netscreen

I'm having problems with hosts being able to ping other hosts they shouldn't be able to communicate with. Fairly simple network - relevant hardware: HP Procurve 2810-24G switch Juniper Netscreen ...
1
vote
1answer
141 views

Connecting MPLS Link to Local Network

First off, I'm a vlan-virgin. We have two offices (OfficeA & OfficeB) and we have two core switches (Cisco 45XXs) in each office (OfficeA-CSW & OfficeB-CSW). In OfficeB we also have a ...
0
votes
1answer
30 views

voice vs data device authentication

When a device is plugged into a switch (let's say, a Cisco Catalyst switch) how does a switch know whether the device is a VoIP one - and subject to being placed into the voice VLAN - or some other ...
1
vote
0answers
1k views

Bridge on vlan on teaming for KVM

I have problem to create bridge on vlan on teaming. Why I do something like that? - Kvm needs bridge - Vlans because I need vm’s in different subnets - Teaming in option active-backup (small HA) I do ...
0
votes
1answer
356 views

Adding a VLAN to Multiple Aliased (Virtual) Interfaces

I have a server running centOS 4.6 with 4 NIC ports. I successfully set up 2 ports with 32 virtual interfaces to handle my VLAN-untagged connections and have no issues with that side of things. ...
-2
votes
1answer
52 views

Which VLAN should a secondary server NIC go on?

We have just upgraded our SAN backend with 10 Gbps connectivity and we have a few Windows servers that currently use a 1 Gbps connection, which we would like to upgrade by adding 10 Gbps NICs to. Part ...
2
votes
1answer
133 views

Vios x LPAR Clients - SEA relationship

I am developing a script to list all SEA adapters in a VIOs, their related physical, virtual adapters, along with their status and VLAN TAG ids. I wish to include on this script the VIO clients (...
-2
votes
2answers
51 views

Vlans without assigning ip address [closed]

I have a 6248 Dell switch with following vlan's created interface vlan 2 name "ISCSI1" exit interface vlan 3 name "ISCSI2" exit interface vlan 4 name "CSV" exit interface vlan 5 name "...
1
vote
0answers
370 views

Trunk vlans inside openvz container (Proxmox)

I have a node running OpenVZ CT (ProxMox). eth1 on HN are bridged through vmbr1 to veth device on CT101 (eth1 inside container). (Host Node) eth1 -> vmbr1 <- veth101.1 <- eth1 (CT101) No VLANs,...
0
votes
0answers
266 views

ARP/ICMP in a network environment with overlapping IP address

Currently I have lab network setup to mimic customer's network deployment. (According to the customer, they are using VRF over VLAN so that their customer can have overlapping network connecting to ...
1
vote
2answers
897 views

Watchguard VLAN Head-Grasping needed

I am trying to wrap my head around setting up my new watchguard M400. Here's what I need to figure out and what I've done so far. My ISP provided me with a P2P IP, which I plugged into my interface (...
0
votes
1answer
2k views

Draytek Vigor 2860 multiple external IP-addresses

I've bought a DrayTek Vigor 2860 for my company network. And I'd like to use it for two VLANs with separated external IP's. I have 6 LAN ports on my DrayTek. For example: External IP-adres: 201.102....
2
votes
1answer
2k views

Cisco Voice VLAN with 802.1X Authentication

I've got a Cisco Catalyst 2960 that I'm trying to configure for a remote office with 802.1X wired authentication. The setup I'm going for is Switch -> VoIP Phone via Internal Switch -> PC/...
0
votes
1answer
329 views

Can ping in Only one Direction within VLAN using tagged and untagged ports

The following setup: Two linux hosts s=server, c=client One switch which is fully VLAN capable Tagged port setting and tagging enabled on the server/switch side Untagged everything on the client ...
0
votes
1answer
119 views

Managing VPN-based users/VLAN access to a test environment

I'm involved in the setup of a demo/user lab environment comprising several racks of server kit. The idea is that potential hardware/software customers can be given a VPN account that will allow them ...
0
votes
1answer
340 views

Need VLan to route to Internet

I have a Sangoma box here. This is Lync in a box... There is AAR Reverse proxy (VM) on the server and it has an IP of 10.10.9.7 on The "External" interface. I have 10.10.10.5 on the "Internal" ...
1
vote
1answer
218 views

multiple subnets on the same switch(es), how can I isolate it?

I am by no means an expert when it comes to networking, I've inherited one which I am pretty much sure is wrong and due to my lack of experience I have no idea how to clean it up. The network looks ...
0
votes
1answer
489 views

Correct way to setup VPN/VLAN for small business NETGEAR FVS336G

My current employer has a horrendous setup for his internet, 2 Virgin Media cabled lines with routers that you'd use at home. So we've had Fibre Optic installed and a Pool of 5 Public IP Addresses. ...
16
votes
3answers
2k views

Phones on some switches cannot complete DHCP process

Background I have a Windows DHCP server (Server 2008 R2) handing out addresses for several scopes. One of those scopes is for some Mitel IP Phones. The phones are configured to use dhcp option 125 to ...
0
votes
1answer
785 views

Hyper V 2012 R2 private virtual switch with trunk and access mode switches

Is it possible, using Hyper-V 2012R2, to construct a Virtual Switch internal to Hyper-V (no external connectivity necessary or desired), where one switch participant (VM 0 in the diagram below) has a ...
0
votes
2answers
354 views

PFSense IPSEC VPN VLAN

We are integrating with a third party and they require the use of a L2L IPSec VPN for communication. I have successfully configured the IPSEC vpn and the tunel is up but now I cannot seem to have ...
1
vote
1answer
149 views

Clients connected to “vlan hub” can't access internet on dedicated, natted vlan

I'm trying to get my network up and running with my new provider's vdsl router, which can't operate in "modem-mode" or "bridge-mode". My setup so far is as follows: I have two managed switches, ...
1
vote
0answers
88 views

Windows Server spamming devices on other subnets on port 445

I have a Windows Server 2012 that every few seconds sends packets destined for port 445 on local IPs on other subnets. The IPs on other subnets it is trying to reach are devices such as VoIP phones, ...
2
votes
0answers
167 views

Debian does not shut down interface with ip link set … down

I have a really specific question for a trunk-testing environment. I have this network setup: +------------+ +------------+ | | +-----+ | | | eth0 +----...
3
votes
1answer
91 views

IP Routing on All Switches or just Core

I have 1 core switch in our MDF for server equipment and 6 data closet switches that connect clients. At this point I only have IP Routing enabled on the core switch so all IP routing is done in one ...
1
vote
0answers
220 views

VLAN configuration on HP J9279A

I've tried to set up separate VLAN for lab environment on one of my HP switches (J9279A/J9280A). Network schema: WAN | GW | ...
3
votes
2answers
2k views

Ubuntu Linux, Bonding, and VLANS - Can I configure all interfaces to be tagged? IE: Bring up BOND0 interface without an IP Address

I have a server with multiple adapters in a bond, bond0. I am not sure (even after extensive research) how to bring up the bond0 device without an IP address. I want the VLANs to use bond0, but not ...
0
votes
0answers
176 views

Layer 3 switch redundancy solution (with vlan's, stp)

So basicly I have a setup which I want to get to work but i'm unable to. It's possible I am overseeing a lot of things but let's get to it anyways. The current situation is a network with 4 switches ...
-3
votes
1answer
80 views

How to efficiently subnet a network [duplicate]

I have base ip address 10.6.0.0/16. I need to divide this network into 12 subnets, and I need at least 80 computers in one network. Please explain how to calculate correctly subnets. I understand that ...
0
votes
1answer
213 views

How to connect to external server using router from VLAN's

I am newbie. I am trying to build network system in Packet Tracer. Now I have such network layout. I have different VLAN's Accounting and Sales. I have configured this using subinterface in ...
2
votes
1answer
2k views

Mikrotik RB2011U vlanning

I am having trouble getting port based vlanning/trunking working on a Mikrotik RB2011U. I have been following the guide located here: http://wiki.mikrotik.com/wiki/Manual:Switch_Chip_Features#Example_-...
1
vote
1answer
327 views

HP ProCurve Vlan Isolation

Okay, so we have an HP ProCurve Switch 2824, a Zyxel router and a bunch of 2012 R2 servers. We currently have 3 VLANs in our network: 10(Public),20(Private) and 30(Management), but we'd like to have ...
0
votes
1answer
354 views

enable lacp mode active on isr 2951

Any idea if ISR 2951 support LACP ... i don't see any cli command to enable it. My router IOS version is 15.2(4)M7. Can you help please. below is my config: interface Port-channel1.1 description ...
1
vote
1answer
2k views

CoreOS - Starting Docker containers on specific VLANs

This is an addition to this question about how to setup VLANs on CoreOS [CoreOS bare-metal vlan networking. My question after is after you set this up, how do you use it? How do you start a ...
0
votes
1answer
94 views

HP RIP on LAN Topology

We have 1 main core HP Routing Switch in server room that connects other data closet switches and 6 Data Closet switches that connect the clients. We only have 3 VLANS. I have 2 questions: 1.) ...
0
votes
1answer
273 views

How to config private IPs for IPMI using VPN?

Recently I discovered it is best to protect my IPMI web interface behind a VPN. I went ahead and installed OpenVPN on my server and connect to it using tunnleblink on OSX. The VPN part is all set and ...
0
votes
0answers
816 views

Zyxel GS1920-24HP LLDP-MEP LLDP VoIP

I've edited this post to hopefully conform with what is expected from a question. What i'm trying to achieve I belive is quite simple. I have a Zyxel GS1920-24HP and two routers giving out DHCP on ...
2
votes
2answers
2k views

Linux is sending ARP requests to hosts in other subnets?

Setup Host B <--> Router <--> Host A Host A: IP = 192.168.1.10, Net = 192.168.1.0/24, VLAN = 1, Default GW = 192.168.1.1 (Router) Host B: IP = 192.168.2.10, Net = 192.168.2.0/24, VLAN =...
1
vote
1answer
957 views

CoreOS bare-metal vlan networking

I need to write a CoreOS Cloud Config file in which I need to setup networking. But i have a problem because I have a bit weird environment. What I'm trying to accomplish; I have a Sophos UTM thats ...
0
votes
2answers
2k views

Unable to add allowed VLANs to trunk and port not trunking

I am unable to add any VLANS to be allowed on trunk and the port is not trunking. I've tried: Switch0#configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)#...
2
votes
1answer
2k views

Unable to remove a port from default VLAN

I am unable to remove a port from my default VLAN. I've tried: Switch(config)#interface FastEthernet 0/1 Switch(config-if)#no switchport access vlan 1 It has no errors but when I check it using: #...
1
vote
1answer
439 views

Setting up VLANs using GS724T & Draytek 2860n-Plus

I am having a world of problems here and can't see what is going wrong! The Plan: Use the Draytek to connect to the internet and provide WLAN access. Single port to connect to the GS724T and tag ...
1
vote
3answers
820 views

Route Subnet to only access 1 IP address on different VLAN HP Procurve

I'm trying to route VLAN 300 which has a subnet 192.168.100.0/26 to only access 10.220.1.10 on VLAN 220 but struggling with the config. HP's documentation from what I can tell just wants me to enable ...
2
votes
2answers
1k views

Do I need VLAN for VOIP phone if my network switches supports IEEE P802.1p QoS?

I have 30 workstation and 30 IP Phones all under one single network 192.168.9.0. The network switches is unmanaged switch but supports IEEE 802.1p QoS (e.g.: DLink DGS 1008D and DGS 1016D). I ...
3
votes
1answer
637 views

OpenWRT - Manage Virtual LAN

I have an Ubiquiti AirRouter with OpenWRT on it and I've been trying to separate the manage of the ports. I've formated the router using CoovaChilli app, anyways the app just help to install OpenWRT ...
0
votes
1answer
1k views

Cisco ASA 5510 needs “clear arp <Interface>” periodically to reach a single host

ASA 9.0(3) The symptom is that I can ping from the ASA to any other host in that interface's subnet, save one particular host (that host can ping the interface on the ASA however). If I do "clear arp ...
0
votes
1answer
541 views

How to remove a VLAN tag from a VSwitch (VSW) in LDom OVM SPARC

I have a OVM SPARC 3.x server and one of its switches is set with a vlan tag. In the example below the VSW has a VID of 200. How do I remove the tag? I cannot remove the vswitch, as other guests are ...
0
votes
0answers
2k views

my iperf connection test client side keeps showing connection refused

I am trying to setup an iperf test but the client side keeps getting connection refused message. Server side: ubuntu@webserver1:~$ iperf -s -----------------------------------------------------------...
4
votes
1answer
504 views

Routing on Bonded VLANs

I've got a linux d/b server (OEL 6.4 but effectively Redhat 6 I believe) with bonded nics connecting to juniper switches. I've split the bond up into multiple vlans (bond0.11, ... bond0.18) with IP ...
1
vote
3answers
7k views

Ubiquiti Unifi Wirlesss Access Point not obtaining IP Address when VLAN Tagged

This question follows on from this one which I managed to resolve. Draytek 2830, Multiple VLANS on Same Port My Ubiquiti Unifi Wirlesss Access Points are not allowing clients to obtain an IP address ...