In the vlan settings on the D-Link DGS3100-24 there is a default vlan with id 1 with settings to “Untag VLAN Ports” T1-T32. All other vlans user port 1-24 in their settings and the switch only have 24 physical ports. What is port T1-T32, why are they there and what are they used for? It’s not mentioned in the manual at all (or I’m blind). Asked by Molotch The device supports up to 32 802.3ad [...]

First of all I’m relatively new to VLANs. I have a ZyXEL GS-1524 switch and two networks that I want to keep separate, but they need to use the same router. The router is on port 22, ports 17 and 18 belong to the first network, and all other ones to the second. The issue is that my switch requires all ports to be on VLAN 1. It did not seem to suffice to create [...]

I’m currently in charge of setting up our office’s Linux router. We’ve been operating with two VLANs (one for data, one for voice) and a single WAN connection. Recently, we’ve had issues with our primary WAN provider, so we’ve gotten a more stable channel with substantially less bandwidth exclusively for our VOIP traffic. I’m running into a bit of an issue with setting up our CentOS machine to do multihoming properly. Here’s our current layout: [...]

I would like to extend a VLAN on Switch 1, to Switch 2, so could I simply use a crossover cable or a normal cat52/rj45 cable to connect a port on each switch together and then assign the two connected ports to the same VLAN (ID22)?# P.S These switches are not connected together at all at the moment – are there any other connections for this I am missing? Asked by James It’s a little [...]

I am new to virtual servers, vlans. I am a programmer and have been assigned the task to make a stable storage server, i threw XenServer Free 5.6SP2 on an old box (HP ProLiant ML350 G5) set my raid(5), installed the footprint, all went well. very simple using the gui. I installed my image of windows server 2003, all worked well. Now from xencenter, i set my networks up, created a vlan. But how do [...]

So, I have two Dell PowerConnect 6224 switches (non-stacked). On both of the switches I’ve taken ports 8 and 9 and assigned them to VLAN 2. The other ends of those ports go to two Windows 2008 R2 Hyper-V host servers (Dell PowerEdge R710). Each server connects to the two switches via a teamed connection for redundancy and speed. The servers have their IPs as 10.0.2.5 and 10.0.2.6 with a subnet mask of 255.255.255.0. The [...]

up front — definitely NOT a mission-critical kind of question. after a ‘spring cleaning’ of my local office, i’ve ended up with two ‘spare’ GigE switches at my home/office — one managed, capable of VLANs, QoS, etc, and the other unmanaged. i’ve got more ports than i need. in fact EACH switch has more total ports than i need. but, since i can’t have these just sitting around not doing SOMETHING … i’m interested in [...]

we´ve recently setup multiple (4) VLANs on ProCurve 2510G Switches and one Astaro v8.301 Gateway. We´ll have one PXE Server on VLAN 400 and Nodes to boot to PXE on VLAN 100, 200 and 300. I would like to create a DHCPd on the Astaro Node pointing to the PXE Server and using Paketfilterrules to transport the Traffic over the VLAN-Borders. Is this possible? Asked by Martin Seener Okay i managed it by myself but [...]

This is something I’ve never considered before and wanted the opinions of the experts. We use VLANs day in and day out for various network tasks. My modus operandi is that in general, if something supports VLANs, that port is getting trunked because it just makes a ton of sense if there’s even the slightest chance you need to do more than one thing on that single link. As I ponder this, though, I’m wondering [...]

I’ve got this network topology: network 192.168.100.0/24 vlan 100 network 192.168.200.0/24 vlan 200 one ubuntu server(2 vlans on 1 ether) eth0.100 (ip:192.168.100.10/24) eth0.200 (ip: 192.168.200.20/24 def gw 192.168.200.254) Situation is next: eth0.200 is up eth0.100 us down. connection from subnet 192.168.100.0/24 is ok to 192.168.200.20. When i make eth0.100 up: cannot access 192.168.200.20 from 192.168.100.0/24 network. (wrong interface responce. when package arrives to 192.168.200.20 from 192.168.100.0/24 it is responsed back by 192.168.100.10) how to fix [...]