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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Samba domain trust errors on a specific interface

We have a windows domain that also has a RHEL member server in it. All the servers have a primary network connection to the LAN, but some servers also have private dedicated links to the RHEL server, ...
5
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4answers
5k views

Can't communicate between lan ports on openwrt router

I've got a WBMR-HP-G300H Buffalo Airstation router on which I've installed the lates OpenWRT software. All is working well (ADSL, WIFI etc) except for one niggle. I can't communicate between lan ...
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2answers
2k views

Do switches sometimes need rebooting?

In your opinion, do switches sometimes need a restart? I'm asking this because today our NAS stopped working properly, and was only fixed when we restarted the switch it was attached to.
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1answer
2k views

Are Link-Local routes necessary (IPv4)?

I noticed in my routes output in RHEL6 (and most 2.6.x series Linux), for every interface I see the creation of the following route in my kernel routing table: 169.254.0.0 0.0.0.0 ...
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3answers
782 views

Can't Ping host, nmap detects it?

I have a simple question that I'm trying to wrap my head around. I know this requires knowledge of my internal network, but at a glance, what do you guys think.. I cannot ping a host in my network ...
0
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1answer
88 views

LAN with around 10 Computers loses internet connection

We have around 10 computers in our private LAN. There is currently 3 routers and one big swich connecting all the computers. 2 of the routers had there DHCP disconnected in the beginning. In the ...
2
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3answers
102 views

what's the difference between ICMP prohibited ICMP unreachable?

If I want to forbid a route to response a network, should I use ip route add unreachable 209.10.26.51 or ip route add prohibit 209.10.26.51?
0
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1answer
251 views

Using two lan eth0,eth1 by ubuntu server

I have a ubuntu server. I need to use eth0,eth1 by connecting two LAN cable. I edit network interface by vi /etc/network/interface. eth0 works fine but eth1 dose not work. What is my problem? # This ...
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3answers
364 views

How to configure PC as a gateway?

I'm researching a project. If lets say a lab has 20 PC, 1 tutor PC and the rest is 19 student pc, and in my project all the network traffic from student pc should go through the tutor pc before ...
2
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1answer
94 views

Network Balancer for LAN?

Can it be possible to give a higher priority to certain PC's internet speed? Curiosity ran into my mind.
2
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1answer
3k views

How to configure pfsense to use LAN ports as local switched ports?

I have a pfsense box with 6 LAN ports. I'd like to use one as the WAN port, and 5 as local LAN ports, just like a home gateway/router. How to setup the LAN ports so that they are all in the same ...
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1answer
557 views

Gateway Modem loses ability to DNS lookup intermittently, often under heavy load

We're using a Bell 2Wire Gateway modem/router as our only hub (with some switches attached). Intermittently, but frequently when a large download is initiated, all computers on our LAN lose the ...
0
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1answer
110 views

Tools to inspect an ethernet packet travels through host's interfaces?

I am debugging a local ethernet connection on a Linux machine. I want to inspect the ethernet packets as they travel. in and out current machines' interfaces. I do not have a GUI on the machine. Is ...
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2answers
504 views

The ping response time doesn't reflect the real network response time

I encountered a weird problem that the response time returned by ping is almost fixed at 98ms. Either I ping the gateway, or I ping a local host or a internet host. The response time is always ...
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votes
1answer
426 views

Equipment Needed to setup up a WAN?

What equipment is needed to set up a WAN, besides routers? What aspects of setting it up and maintaining it make it so much more expensive than a LAN?
2
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1answer
71 views

Moving Portable Office. Have a LAN & Phone line query?

We are about to move a portable office that has 8 phones and 12 lan connections. They are all wired back to our main switch and Nortel bcm200 phone system which are only about 20m (65ft) away. After ...
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2answers
280 views

How to forward static IP to the server computer in the LAN

We want to have an office server, we already have static IP. But the thing is that we need to have following structure: ISP Modem Router Server Wireless router Also I'v tried ...
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2answers
820 views

Is it bad that latency for our internal LAN varies greatly within the 15 - 40 ms range?

I've always thought the "typical" latency for a small office wired Ethernet network would be <5 ms. However, pinging the default gateway yields an average of 14 ms, and any host is around 30 ms. ...
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4answers
409 views

What is the bottleneck in VPN connection?

I have a LAN behind a Linksys RV016 Router. It is connected to the internet with DSL line with asymetric parameters 2Mbit download / 512 kbit upload. In this LAN I have MS SQL server, and i want to ...
2
votes
4answers
330 views

Encrypt LAN and wifi traffic on small private network

I need some advice about encrypt all traffic on a small private network running wi-fi and LAN traffic on 192.168.0.x network. The network would comprise of client laptops connecting to the wi-fi ...
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votes
1answer
63 views

Relation between private network and local area network? [closed]

From Wikipedia: In the Internet addressing architecture, a private network is a network that uses private IP address space, following the standards set by RFC 1918 and RFC 4193. These ...
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votes
2answers
411 views

Practical difference between CISCO C2960PD-8TT-L and Netgear ProSafe GS108P [closed]

So I'm setting up a new department and doing some shopping for our new 4 developer team. I need to get some switches so that each member has at least 2 ethernet ports +1 with POE for an IP phone (1 ...
3
votes
2answers
1k views

How ISPs will assign IPs /subnets for end users in IPv6

Consider two scenarios: The end user has a simple computer, dual-stack The end user has a LAN behind a dual-stack router How will ISPs differentiate each one of these kind of users in IPv6? An ...
0
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1answer
47 views

routers function but cannot ping or remote admin

I have set up 3 cisco wireless routers as wireless access points. Each has a static network ip and subnet/gateway identical to everything else on the network. They also each have local ips that I ...
0
votes
1answer
550 views

What equipment/software is needed for setting up a LAN-based webserver for learning the ropes locally? [closed]

I'm a complete linux/networking beginner. What equipment/software will be needed to do this? Basically I want to set up a server computer and be able to connect to it locally with my desktop, and ...
2
votes
3answers
523 views

Connection of a 10/100Mb adapter to 1000Mb LAN

I have the following problem. I cannot get an IP address using DHCP. I have a 10/100Mb adapter on a set-top box connected to a 1000Mb LAN. When I boot up the set-top box it gets an IP from the DHCP ...
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6answers
433 views

Local Area Network (LAN) communication protocol

I'm a bit confused, and was wondering if someone can set me straight. Under a Local Area Network (LAN), what is the communication protocol for the data packets under i.e. ethernet CAT5 cable that ...
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1answer
117 views

How can I transfer a large number of big files over local network with pause/resume support? [closed]

My MacBook has about 400GB of files (videos, music, documents, etc.) that I need to transfer to a Windows PC over my local network. My router is semi-disfunctional, though, so every so often it stops ...
0
votes
1answer
272 views

Cisco 878 Router Physical Layer troubleshooting

My problem: Upon connecting the FastEthernet0 with a straight-through cable to a Catalyst switch, the line protocol comes up briefly and then goes down. Interface goes down too, I now have this on my ...
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2answers
282 views

A good topology for my network

I have this topology in my network at the company where I work: Where the only router is the 'main router' (is here where we receive the internet signal from our provider) the others networks ...
0
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2answers
152 views

Virtual Hosts on a windows machine in local network [closed]

I am running an Apache 2.2.21 on Win7 x64, using sucessfully a row of different virtual hosts local.projectOne local.projectTwo ... So far this was fine, using the hosts file to map'em all to ...
0
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1answer
224 views

Remote Desktop to WAN address from inside LAN doesn't work

I have a router opened up to allow Remote Desktop to one of the machines. It works if I try to connect from outside the network. If I however am inside the LAN and try to connect using the WAN IP ...
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votes
3answers
787 views

Assign a static IP to a Windows Server 2008 R2 - where to get static IP addresses [closed]

On Windows Server 2008 R2, I know how to assign a static IP address to that from lan properties windows. In my current server, I am working with a hosting provider and they provide me 5 IP address ...
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1answer
85 views

Accessing database from local network

I would like to access database running on virtual machine which resides in server connected to local network. Here's the whole situation: There is Windows Server 2008 R2 Datacenter running as ...
1
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1answer
170 views

How to redirect traffic with Apache and Dlink 524T ?

I would like to redirect all LAN http traffic to my Apache server (which is located temporarily on my laptop ). The basic idea is that every user who connects to the network and tries to connect to a ...
0
votes
2answers
51 views

Howto switch ISP provider? [duplicate]

Possible Duplicate: Office network failover? I have a office LAN providing internet access to several workstations, each workstation it is basically connected to the hub that it is ...
0
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1answer
60 views

Office network failover? [duplicate]

Possible Duplicate: What hardware do I need to add a backup internet connection? I have a office LAN providing internet access to several workstations. Each workstation is basically ...
1
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1answer
115 views

settings for network with dhcp server

We are trying to fix a problem in a network with this setup: DHCP Server (and all stations) connected to a gigabit switch connected to a router. What should the Gateway and DNS values be on each of ...
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votes
1answer
131 views

Bind server port to local ip address [closed]

Here is the situation: A Windows XP machine running as server - accessible from outside A device(camera) which is locally(from LAN) accessible What I need is this - if I access a specific port on ...
0
votes
1answer
478 views

Cannot remotely connect to server while it's connected to WAN port

It may appear like a really dumb question but why can't I remotely connect to my server when it's connected to the WAN port of the router? It was working when the server was connected through any ...
2
votes
2answers
284 views

Networking several devices with the same IP

I have a bunch of embedded devices that I need to flash with a custom OS. On each device, the boot-loader (U-Boot) has a fixed IP of 192.168.100.2 and on boot it looks for a TFTP server at ...
2
votes
2answers
3k views

How do I prevent excessive ARP requests sent from Windows Server 2003?

OK, I've scoured the 'net already for possible solutions and have found none. Maybe you guys can help me. I have a Windows Server 2003 setup, with a fixed IP on a routed LAN, standard /24 network. ...
0
votes
1answer
395 views

Setting up MySQL server on LAN to be used with JDBC

I'm creating an application with client-server architecture in java. What I'm trying to achieve is a simple client-server architecture connected via LAN with an ethernet switch, the server is having a ...
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3answers
116 views

What exactly defines a LAN? [closed]

When I am reading some networking books, they often define a LAN as a set of connected computers across a building, campus floor, home, etc. However, I think this is pretty vague. What exactly defines ...
3
votes
3answers
5k views

How to configure bind9 to be a local DNS only with no internet access?

I want to configure bind9 to be a local DNS only with no internet access at all. So I have 5 PCs in my virtual domain xy.com. Within this domain there is no access to the internet. The DNS server ...
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votes
2answers
406 views

Solving problems regarding accessing localhost over LAN [closed]

I have two computers with IP addresses of 192.168.1.1 and 192.168.1.2 respectively. Both computers have Apache servers installed on them and both are listening to port 8080 rather than 80. I have ...
2
votes
3answers
174 views

Accessing the servers via their WAN IPs from the internal network - connect them to LAN too?

Currently we have a few servers behind a router/gateway, which is in bridge mode, so the servers have directly assigned WAN IPs with no NATting performed. This works as expected. There is, however a ...
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1answer
257 views

Access content via a LAN connected machine which is Django-WSGI-Apache configured

I configured my system to be able to deploy Django stuff using Apache on my machine(Ubuntu 11.10).I followed the instructions given at ...
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votes
1answer
77 views

Accessing a connected device through LAN [closed]

I have a metered APC Power Distribution Unit (PDU) which is capable of spewing out the current load, power and such information through a LAN cable. I'm connecting the cable from the PDU to a server ...
4
votes
3answers
561 views

Several switches vs one switch for on LAN of 60 computers?

A. Is using one network switch is faster vs 3-4 network switches connected together in same room? B. Is there difference in speed at all between cheap switch and more expensive model? P.S. network ...