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

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22 views

How to setup 2 switch with VLAN and 2 IPs for each in different block

Below I have depicted the required network. In this network: Lets say GW1 is in IP1 block and GW2 is in IP2 block. There are 2 Linux running PCs with 4 NICs. 1st Linux PC is connected to 2 GWs with ...
3
votes
1answer
62 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 ...
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0answers
12 views

Deny DHCP-Requests for specific subnets on specific interfaces

I have a router (Ubuntu 14.04) running the isc-dhcpd-server on the interfaces em2.X (X can be any of the VLANs 2, 3, 4). Each interface has its own 192.168.X.0/24 subnet. Now I have a Windows-Client ...
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vote
1answer
13 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
15 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 ...
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56 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
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1answer
42 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. ...
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0answers
14 views

VLAN on access port between Dell6248 and 5548

I have a Dell 6248 which is connected to firewall through Dell 5548 6248 (g23)-----(g48)5448(g43)----(x0)sonicwall Below is the vlan config of 6248 interface vlan 4 name "Four" routing ip address ...
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1answer
44 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 ...
1
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1answer
29 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 ...
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2answers
39 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 ...
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25 views

pfsense routing with dmz wan and sonic wall

Pfsense setup: 2 physical NIC's (1 input from modem/ISP, 1 LAN with a lot of vlans and DMZ) Network setup: WAN block from ISP xxx.xxx.xxx.225/28 Modem -> pfsense -> vlan 40 (192.168.40.0/24) ...
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0answers
32 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 ...
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0answers
26 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 ...
0
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0answers
22 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 ...
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0answers
6 views

DLink DAP-2310 wifi with internet access only? [migrated]

I have a DLink DAP-2310 access point connected via LAN to a router (Fritz!Box) with internet access. I want to configure the access point to provide a wifi network that gives internet access only, no ...
0
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0answers
52 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: ...
2
votes
1answer
110 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 -> ...
0
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1answer
51 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
30 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
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1answer
62 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" ...
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0answers
36 views

Vlan trunk between three switches and KVM Guests

I'am trying to find information regarding the appropriate configuration between three switches and KVM. More depth as per diagram. I need to create a tunnel for traffic created on sw1-port5 to be ...
1
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1answer
56 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
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1answer
59 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. ...
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0answers
23 views

ebtables captive portal bridge vlan

http://s16.postimg.org/e5nu6g1md/bridgevlancaptive.png Attached link image is based on my project about captive portal. As you can see on the image i have diagram on LEFT side which is WORKING ...
16
votes
3answers
200 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
107 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
91 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 ...
0
votes
1answer
46 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
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0answers
25 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
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0answers
62 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
47 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
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0answers
52 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 | ...
2
votes
2answers
181 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
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0answers
60 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 ...
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votes
1answer
44 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
59 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 ...
0
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1answer
277 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: ...
1
vote
1answer
67 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
81 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
362 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 ...
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0answers
31 views

HP IP Routing Topology

We have 1 main HP Switch in Server Room and 6 other data closets switches that connect the clients. In terms of routing we have 3 VLANs that require routing. Right now the only switch that does any ...
0
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1answer
61 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
0answers
63 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
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0answers
252 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 ...
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2answers
391 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
361 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
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0answers
66 views

Microtik router intervlan routing with NAT

I have setup as below: MTik Router RB450G(ether1) --> (fa0/1) Cisco Switch (fa0/2) --> Maipu Router, Internet Router MTik Router(ether2) --> My PC In fa0/1 , there are two VLANS trunked: ...
0
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2answers
233 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. ...
2
votes
1answer
135 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: ...