LAN, short for Local Area Network, is a network that connects multiple devices in a limited geographical area, such as a room, an apartment or a building. Currently, most LANs are based on Wi-Fi or Ethernet transmission.

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710 views

Ubuntu wired network disconnected

I am not able to establish a wired network connection between two computers on which I just installed Ubuntu 10.04. I am new to this environment. Unlike in the Windows environment, where it happens ...
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1answer
24 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 ...
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1answer
747 views

Lot of Multicast traffic on LAN

Recently the whole network at work is being hit by multicast traffic originating on the LAN itself. I did some investigating and the service which seems to be responsible is ws-discovery. I have ...
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1answer
33 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 ~]# ...
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1answer
45 views

Nginx geoipblocking & allowing LAN IPs

I'd like to block IPs with geoip except whitelisted countries AND the local area network. The first part works flawless, the second one not. Somwehere searching the internet I found the codes LH ...
1
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1answer
149 views

One IP for whole LAN, provide access to local server outside the LAN [closed]

I have a LAN with multiple PCs and some servers. I would like to provide access to one of the servers from outside the LAN. The problem for me is I have one IP address for the whole LAN. The server is ...
0
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0answers
23 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 ...
6
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3answers
14k views

Load balancing & NAT-ing multiple ISP connections on Linux

I have two internet connections from two different ISPs and I need to balance the traffic originating to and from my network between the two ISPs. I am using Debian GNU/Linux. My set-up is like this ...
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1answer
31 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
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1answer
32 views

How to access a domain or its subdomain from the Local Area Network in Nginx?

I've got a local server configured with Nginx, PHP5-FPM, MySQL and some other stuff. I'm hosting two sites. One static website using Twitter Bootstrap and a theme: at www.example.com One WordPress ...
0
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2answers
61 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 ...
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4answers
96 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 ...
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2answers
39 views

How to find programs using DNS on a network/machine

I have making a server switch. I am using wireshark and seeing that some PCs on my network are using DNS to make requests to the old server. I would like to track this down but do not know how. I ...
0
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2answers
27 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 ...
0
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1answer
130 views

Effects of IW10 (initcwnd 10 initrwnd 10) on high speed LAN based TCP/IP communications?

What does changing the number of packets sent during the initial congestion window to 10 have on LAN connections? Via: ip route change default via GATEWAY dev INTERFACE initcwnd 10 initrwnd 10 Is ...
7
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7answers
819 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 ...
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2answers
31 views

gpo set to disabled but still applied

I set the 'prohibit access to properties of a LAN connection' to 'disabled.' After forcing, I confirmed they were not applied by running a gpresult. Now I realize that there are instances where ...
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2answers
73 views

Why can't I have the same subnet on WAN and LAN?

I want to know why same IP with same mask on both WAN and LAN side could be a problem. I also want to know if setting different mask, but having same IPs will resolve the routing problem. ...
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0answers
70 views

Severe performance issues sharing openvpn client connection to LAN clients virtualbox

I am trying to set up an internal network in Virtualbox in order to share an openvpn client tunnel with multiple VMs acting as clients that should be completely isolated from everything except for the ...
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0answers
41 views

My SonicWALL PRO 3060 doesn't have PortShield, but is there a way I can fake it?

So I'm setting up a SonicWALL PRO 3060 and I noticed that it doesn't have some optional PortShield upgrade -- oh well, my loss. However I find that I've started needing something very ...
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0answers
35 views

Error 400 on LAN access

Probably a stupid question / problem, but when I try and access my site via it's domain name from inside it's LAN (requesting via the local IP address works fine though), I get an error 400. A while ...
0
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2answers
58 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 ...
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1answer
116 views

How to make your apache application accessible within network

I have a Windows XP machine where I have installed WAMP and made a PHP based web application. I can access the web application from within this machine by using the browser and pointing to: ...
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0answers
32 views

RTMP Streaming LAN footage from multiple PC to one single stream

I need to stream a Live LAN footage from multiple PCs to a single stream, that is must redirected on twich.tv. What in fact I need to do is to switch from one source to another without interrupting ...
0
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1answer
34 views

Cannot access site on apache from machine on different Lan

Hello I am new to apache and webservers and I need some help. I wish to host website within a machine an browse to it from another machine in another enviornment as part of a test enviorn. I am ...
0
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1answer
114 views

Airport Extreme mesh over Ethernet?

I have purchased three Airport Extreme routers. I have a cable modem in one room that currently feeds into our primary router (which I want to replace with an Extreme), which feeds into a switch, ...
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1answer
120 views

How do I set up domain names for IP's on my LAN? [closed]

I have a LAN with 50 clients and my company has made me do a local WebApp. This is new territory for me, but as I see it, the individual internal IP's are regulated by MikroTIK. I was wondering, how ...
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0answers
49 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 ...
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4answers
4k views

Diagnosing and debugging LAN congestion / connection issues

What are the top N tools / methodologies used to diagnose and repair network issues? Given a LAN, for example, where users are able to consistently ping an outside server, but any data intensive ...
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0answers
134 views

DNS settings for resolving Host name to IP not working?

I want to access my IIS hosted application over LAN. First I installed a DNS server. The DNS configuration steps are: Go to DNS Manager -> right click on System Name -> click on configure a DNS ...
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4answers
1k views

Can we use public DNS servers in LAN? [closed]

I am in a hostel using a LAN connection and the authorities have blocked all sorts of websites. Even basic ones we are not able to use so I was looking for solutions. The blocking is done by openDNS ...
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1answer
36 views

how to connect Centos server to the outside world [closed]

I configured the eth0 interface to receive network-connection from my iMac to wich this computer is connected to with an ethernetcable. Configure is a big word here since I only changed the ONBOOT key ...
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1answer
149 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 ...
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0answers
21 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 ...
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0answers
60 views

Accessing Supermico IPMI behind remote LAN

I've been trying to find a solution to this for hours now, I was up till late last night also trying. We have around 70 servers in the US in various datacenters (rented) that run IPMI on a private ...
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3answers
89 views

How to move a Panasonic kx-t7633 Phone

We have Panasonic kx-T7633 phones and I need to move them across office how do I activate or fix the connection after I move the phone Looked at the manual but no answers and googled it as well any ...
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1answer
81 views

How can I access a server on local network using its public name?

I have a problem in which I cannot access a server using its public name from the same network as the server. Access to the server works fine from the internet. Reading up on this problem, I've ran ...
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2answers
219 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, ...
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2answers
228 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 ...
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1answer
234 views

WLAN card as LAN interface?

I have a system with 2 network adapters: a wifi card (atheros) and an ethernet card. Both network adapters are recognized by pfsense 2.1 without problems, but I don't know how to configure it: I ...
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votes
1answer
48 views

How to integrate a separate sub-network within a customer's existing LAN? [closed]

I work for a machine builder, and our system has it's own ethernet network (192.168.1.x) with a switch and a dozen devices, most of which have firmly established static IP addresses. For our next job ...
0
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1answer
156 views

is it possible to use ms loop back adapter to setup local vlan

Is it possible to use Microsoft Loop back adapter to set up Lan connection between two computer which is logically isolated from the main network? 1st computer: has a regular ip stack 192.168.1.x ...
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1answer
72 views

Cannot reach website from outside of LAN [closed]

I am at much of a loss here, guys. I am running an Apache HTTP webserver from my laptop and I am unable to reach it from outside the routers borders/LAN. I cannot seem to ping it outside LAN and when ...
0
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2answers
37 views

Avoid connect 2nd DHCPs on 1 LAN [closed]

I have a LAN network using Draytek 2910 with DHCP. The network goes through 20 different rooms. At first everything is working good. Suddendly the network keep losing IP addresses every 30 t0 60 ...
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2answers
176 views

Excessive ARP request with no reply

I had been monitoring our LAN setting due to slow bandwidth. In the wireshark, I am seeing an ARP request that is never resolve to a MAC address from the same IP address. I did a NMAP scan, the ...
0
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1answer
23 views

Strange issue on netadapter lantronix matchport bgpro

I'm connected to a switch on a LAN, i've tested my matchport on others network and i've not accused this problem. On this istead i seen a lot of UP and DOWN of eht0 on startup. Someone know something ...
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1answer
54 views

Active Directory Domain Controller Configuration with one internet connection & one lan card [closed]

I have a confusion since long time. "I have configured AD on my win server 2008 R2 system and i have one internet connection with only single lan card. thing is that while i am assigning Static IP ...
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 ...
0
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2answers
75 views

Use NGINX to present local HTTP server?

I have a CCTV server running on a local IP address. When our staff want to login remotely they first need to connect via VPN to gain access. I would like to allow access without the need for a VPN but ...
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0answers
70 views

SSL Handshake takes 10 seconds in LAN but not in WAN

Here is the structure we have, 3 servers in location A (172.22.25.X) and 3 servers in location B (192.168.140.X). One of the 3 servers in each location creates an SSL connection to the other 4 ...