-2
votes
0answers
20 views

Internet Connection Sharing and Network Bridging on Windows Server

I have a question regarding a small(ish) office network. I was wondering can I use Internet Connection Sharing with Network Bridging on a Windows server? The scenario is this: I work in a small ...
0
votes
0answers
26 views

Access switch on the LAN from a WLAN connection Sonicwall TZ205

I have a setup like the following Modem >>> Sonicwall TZ205 >>>> Linksys 8 port smart POE switch >>>> Linksys LRT224 When I am on the LAN through a wired connection ...
-4
votes
1answer
53 views

Administrative Login PCs in a network [closed]

I have about 700 computers LAN. All users can login only with user privilege, Not at Administrator. Administrative password of all machine is with me only. On surprise checkup i found some users were ...
1
vote
0answers
67 views

Debian server - DNS stopped working after static IP reassignment

Due to changes in the LAN router, I had to modify the static IP of one of our servers. It still succeeds in finding the external world (ping google.com), but only temporarily - when I access one of ...
-2
votes
1answer
75 views

Easiest routing solution for a typical firewall with WiFi routers setup - WAN-2-hops-away network

Suppose a local network connected to the internet via a single firewall router. Devices that connect directly (= using only layer 2 devices) to that router are: hosts WiFi routers providing the ...
0
votes
1answer
61 views

Restrict network connection to virtual machine alone-VMWare

Is there a way to restrict a Ethernet/Wifi Connection to the virtual machine alone and not to the host operating system? I am using VMWare workstation on windows with centOS and Ubuntu as my guest OS ...
1
vote
1answer
104 views

“Destination Host Unreachable” and ARP returns no addresses over LAN

I am currently trying to setup LAN over two machines with a network mask of 255.255.255.0 however I am receiving the following message when trying to communicate between them both; [root@alpha ~]# ...
0
votes
0answers
25 views

Jumphost VM not able to communicate with LAN

I have setup a jumphost VM on WinXP. It has 2 NICs. NIC1, which is the LAN, has the following IP settings: IP: 10.0.0.1 /24 (No default/ DNS configured) NIC2, which has external connections, has ...
-1
votes
1answer
34 views

Router connect same 2 ports? [closed]

What it will happen if 'accidentally' i will connect 2 ports with the same utp cable? I'm asking here since i don't find anyware such a stupid and silly question but i'm curios about it, the router ...
0
votes
4answers
117 views

Server with 3 network cards

Totaly edited: I have 3 nic with links eth0 eth1 eth2. I made 3 table T1 T2 T3. In /etc/network/interfaces i wrote: auto eth0 iface eth0 inet static address 1.0.0.1 netmask ...
0
votes
2answers
79 views

packet loss between two specific VMs

I am experiencing some high-percentage packet loss (more than 70%) between two specific VMs in a local network, in a remote cluster (I have no physical access to it). One machine is used as a hadoop ...
0
votes
2answers
30 views

LAN resets if I reboot router, but is there a better way to troubleshoot the LAN connection [closed]

Ok, I have the typical problem of intermittent internet drops on my home network. To restore the internet, I simply have to cycle power on the router. Problem solved. But I don't understand why ...
7
votes
7answers
841 views

Best choice of private addresses for a “device area network”

I'm building an appliance consisting of several subdevices connected by ethernet inside the appliance. The appliance will connect to the customer network. The customer network can be using private ...
0
votes
0answers
55 views

Assigning LAN TLD's

Let's say that I am setting up an experiment of sorts with two or more DNS servers. These DNS servers will handle DNS requests for <domain>.lan tlds. Let's say that dns.lan points to the first ...
-2
votes
1answer
277 views

How do routers combine WAN and LAN traffic (packet data over wifi and ethernet)? [closed]

In my office, we have a leased line connection which is shared by some 20 users over wi-fi. This causes congestion on the router's end, resulting in slow speed due to high packet drops (and consequent ...
0
votes
0answers
24 views

Need assistance setting up Linux Router with 2 public lans

I was assigned a.b.c.10/30 (Public IP) for my router and given a.b.c.9 as the gateway. I was also assigned x.y.z.128/25 (Public IP block) for my use. I want to setup a Linux router to handle this ...
0
votes
2answers
73 views

Separate 2 networks with 1 Windows Server

The situation is: I have 1 router 192.168.1.1, 1 switch, 1 windows server and a basic LAN of devices accessing it. I need to split into 2 separate LANs with full Internet access each, but isolated ...
-5
votes
2answers
373 views

Can a computer route IP trafic between two LAN if it is not configured as gateway? [closed]

Having two LAN, each one have its own gateway, DHCP and internet connexion LAN 1 - IPs: 192.168.0.0-255, Mask: 255.255.254.0, Gateway: 192.168.0.1 LAN 2 - IPs: 192.168.1.1-255, Mask: 255.255.254.0, ...
0
votes
2answers
360 views

Why single file transfer is not faster than 50MB/s over Gigabit LAN?

I ran some tests on our gigabit network. When I transfer a big file (10GB) from a windows 7 computer to another, the troughtput never exceed 50Mb (it start at 80MB/s for one second then slows down to ...
-5
votes
1answer
26 views

Domains in local network for websites [closed]

I have installed XAMMP on my local win. server, how can i setup for every website a local domain like. "web1.lan, web2.lan, web3.local"? I already use static IP Adresses in my network...
1
vote
1answer
49 views

Hyper-V Client for Microsoft Networks gone

I have an odd situation. I have a Hyper-V Baremetal Windows 2008 x64 (not R2) host with 4 VM's on it. I also have a server next door on the lan that is not a host just Windows2003x86 called ServerS2 ...
-3
votes
1answer
112 views

I need a 5th port on a 4-port modem [closed]

I'm managing a big building, with a lot of services/vendors and I have a DMZ'd 4-port cable modem, Model: SMC8014, that has 4 separate networks branching off each of its 4 ports. Each network has its ...
0
votes
1answer
69 views

Private ip iptables rule

I am using Windows Azure where they allocate a private IP for you like 10.3.2.1. If I have another machine at 10.3.2.2, how can I open up the first machine(say port 3306) to let the second machine to ...
1
vote
1answer
79 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
2answers
400 views

How to connect 2 Physical Networks with 2 Separate WAN together

My customer has two small companies in two separate buildings that have merged. The buildings are 30ft apart, so they ran an outdoor, buried CAT6 cable between them. They want to use the main ...
0
votes
1answer
51 views

How to add access to a host via symbolic name?

From one LAN I have access to the host 10.0.0.*** via symbolic name say a007, which was added to my /etc/hosts as: 10.0.0.*/*/* a007 But now I need to use this host as a007 from another LAN and I ...
1
vote
3answers
92 views

Create a /16 (255.255.0.0) local network

My bare knuckles networking understanding led me to believe that if I set an IP address of, for example, 10.0.2.25 with netmask 255.255.0.0 on a machine, it should see all hosts in the subnet ...
0
votes
1answer
128 views

Is Cisco Misquoting the Nexus 7000 specs [closed]

Looking at the following image: http://blogs.cisco.com/wp-content/uploads/7000-family-550x358.png Cisco is quoting the 7009 as having a 10GigE density of 336 and a backplane bandwidth of 550G/slot. ...
2
votes
1answer
161 views

Is a Fabric Module required for a Nexus 7009, or is it part of the Chassis?

I noticed that Cisco lists separate fabric modules for the Nexus 7009 switch. If I were to simply buy the Nexus 7009 Chassis (N7K-7009), what would I need at minimum? I just want to confirm, but I ...
0
votes
3answers
63 views

How to find to which network i'm actually connected [closed]

In our office we have both LAN and Wi-Fi network. say i have now connected to both LAN and WiFi. now when i give ipconfig. It is showing both LAN IP and also WiFi IP. I want to know, to which network ...
1
vote
2answers
534 views

How can I configure my network to allow bi-directional traffic between two lans?

Here's my current setup: (and it may require reworking): 2 LAN networks - 192.168.41.0, 192.168.21.0 2 Public IP's (they are assigned to us by specifying MAC Addresses - not subnetted) ...
0
votes
2answers
473 views

how can I block all traffic that is coming to and from an IP address using iptables

I am trying to block all traffic that is both coming and going to an internal IP address (this server acts as a router for the network). so far I have tried the following: iptables -A INPUT -s ...
0
votes
2answers
94 views

OpenVPN as a service, client physically connected to network

I've got OpenVPN running as a service on a client's computer, however oftentimes he will be in the office and able to physically connect to the network. The issue I have with this, is that even when ...
0
votes
2answers
160 views

LAN users not listed over wifi

I recently created a small office network with 10+ computers. 9 of them are desktop computers so I used Ethernet cable to connect them.. The computers are connected to a switch via a patch panel and ...
0
votes
1answer
193 views

MPLS link not forwarding

We have a new MPLS service and I'm having trouble getting it to work (it seems like a routing issue). It's a T3 with two circuits: a public wan port and a private MPLS circuit connecting 2 sites. ...
2
votes
2answers
1k views

Cannot ping over LAN until a ping is received

I have two OSX machines on a local subnet. Pings from Machine A to Machine B consistently timeout until Machine B pings Machine A. After B pings A, A can successfully ping B, but this success is ...
-1
votes
1answer
73 views

Standard solutions to keep LAN connection up

Do you use some "standard" solution to manage your server connectivity? In particular, how do you ensure that, week after week of uptime, your LAN remains connected, even if the router should reboot ...
0
votes
2answers
91 views

Securing LAN by restricting New Users

How can we restrict any user's PC connecting to the network based on their MAC Address?
1
vote
3answers
4k views

Duplicate MAC address on the same LAN possible?

Let's say someone is on the same network as me and spoofs their MAC address to match mine: Is this possible? Can two or more clients with the same MAC address be on the same network at the same time ...
-1
votes
1answer
1k views

2 router network setup. Why does ping only work in one direction?

So the setup looks like this: There is a main WLAN-router/modem which is connected to the internet and serves the lower floor with WLAN. Now upstairs I have a second WLAN-router/modem (I will call it ...
0
votes
2answers
361 views

Assigning static IP and domain name mapping to local server in LAN

I have developed a web application which will be deployed in a LAN environemnt. Clients will be Computers/Android Tablets/IPAD In order for communication between client and local server 1) need to ...
-1
votes
1answer
66 views

VPN That Hijacks Lan (Can I use a VM?) [closed]

I have to use a VPN for work 'citrix anyconnect vpn' which unfortunately also routes lan through the VPN. This is a feature of the VPN. Is there a good / easy way or guide to do something like ...
0
votes
1answer
618 views

Apache/Windows is very slow on only local network

I have this weird problem with apache. First, a little bit of background: I'm using XAMPP - but i tested wamp and vanilla apache, various versions - to do local (php) development on a Win7 Pro x64 ...
-1
votes
1answer
86 views

Could not connect to LAN Server after getting broadband [closed]

I have 10 computers on LAN of which 1 is a server for a web app. All the 9 computers can connect to the server for work. Now we got a broadband internet connection in another computer and shared it ...
1
vote
1answer
49 views

Comunication from Server to Client + Client LAN

I'm having some trouble with some network setup. I've tried OpenVPN, SocialVPN, Hamachi, still it is not working. This is my setup: Server A: NIC 1 with internet public address, NIC 2 to LAN Client B ...
0
votes
2answers
619 views

How to connect two networks (in the same location) to one server for file sharing? Is this possible?

First off, I am not a networking guy, but I have been given this problem to solve. The problem: Our office wants to introduce another ADSL internet connection (making a total of 2). Each ADSL has a ...
4
votes
2answers
277 views

Best security practice for small networks - wifi, lan,

We regularly setup small networks for clients in different locations to allow them to work on different products now the question what should be the best security practice. Currently we have a wifi ...
1
vote
1answer
503 views

Possible to setup OpenVPN between two servers? And how?

Apologies if this is a FAQ but I did not find it in the answers, hence, I'm positing it here. I have a following scenario and I am curious how can I use OpenVPN-(AS) to solve my issue. I have two ...
1
vote
2answers
781 views

Bind WAN IP to LAN (under router) IIS

I am hosting my own website on my local machine and set up a virtual server on my router and everything works like a charm. In IIS, i cannot bind the WAN IP, as it doesn't show up, and if I type it ...
0
votes
2answers
1k views

How do I simulate a WAN inside a LAN for remote office server setup?

I need to send 3 vmWare ESXi servers (hosts) to thee locations around the world. Each host will have 3-5 guest VMs performing various tasks. Each host will live behind a firewall configured with a ...