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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ping round trip time on WiFi

I have two Windows 7 machines on the same wireless LAN. When I try pinging from one machine to the other, the round trip times range from 1ms to 300ms, with lots of variation in between. Is it ...
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535 views

how to connect 2 independent computer networks?

I have 2 independent networks that are connected to internet. Each systems in a network can connect to the internet through the corresponding router/NAT device. i wish to connect these two LANs. I ...
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275 views

windows server 2003 subdomain routing to lan

I have Windows Server 2003 with two network cards. 1 network card is connected to the router and router is connected to internet. 2nd cards is connected to switch and there are another 5 PC’s ...
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3answers
141 views

Slow LAN transfer from 3rd party computer

I've got an odd problem that I'm not really sure where to start the troubleshooting process. I have a 'server' with Windows Server 2008R2 (64-bit) installed and it has a couple of hard drives. If I ...
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2answers
152 views

Tutorials for making ISA and Cache Servers?

i am looking to create a LAN network i want to make an ISA and cache server for better performance and security i am looking easy to understand and complete tutorials, help required and also ...
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2answers
86 views

is there a local DNS Software which uses external DNS for actual resolution?

I have a LAN with few PCs on it. I want to have them to use a local server for DNS look up, and let the local server do look up with external (actual) DNS. So, which proxy-DNS server do you suggest ...
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4answers
267 views

Windows LAN IP addresses

How can I find all the active IP addresses on my LAN and their host names?
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1answer
3k views

iptables - allow connections only from LAN

Is there a way to deny all external traffic (WAN) to SSH and allow only local traffic (192.168.0.1 to 192.168.0.255) and what would be the rule?
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230 views

Auto switching between wired and wireless connections

How about this situation. Our business deals a lot with medical information. And some of our clients have demands based off HIPPA, etc. There is one now where they do not want an employee to have both ...
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1answer
313 views

Using Lan Management port - which kind of switch for remote control?

I have no expertize in server hardware, however i have some IBM X3550 7978 and HP DL 160/G6 servers with 2 Lan ports, and a management port (that seem to be another Lan port). Have anyone tried to ...
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1answer
1k views

How to limit Bandwidth/DownloadSpeed of a computer?

My computer renters are consuming a lot of bandwidth, which cause some consumers to complain about low bandwidth. How could I balance the maximum bandwidth or the maximum download speed globally (all ...
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3answers
296 views

1 Computer Pulls Wrong DNS Every Morning

One of my users takes his laptop home, connects to his home network fine. He brings it in every morning and since Monday - every morning it pulls the wrong DNS every time. It pulls 1 DNS: 192.168.1.1 ...
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1answer
610 views

How to set up apache on LAN (MAMP)

I have 2 computers on a LAN (OS X and Vista). MAMP installed on OS X. I want view the site being developed from my Vista machine. I shared the htdocs file on the LAN. Clearly only the html is ...
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94 views

cant connect PC's within the same lan

Im trying to connect two laptops on my school's wlan, we have the same gateway and we should be able to communicate with each other, but somehow our laptops cant communicate
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201 views

NTP Meinberg GPS167: How to connect to a Ethernet?

I have a Meinberg GPS167 NTP: http://www.meinberg.de/english/products/gps167.htm Although it doesnt have a ethernet RJ45 port. Is there any way to connect it to a LAN?
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1answer
231 views

PC to MAC Ethernet LAN

I'm trying to setup VNC between a (Windows XP) PC and a MAC (OS X) for semi-permanent installation in a space, but I can't even get the PC to ping the mac. I've got an ethernet cable running between ...
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3answers
2k views

what causes slow ssh connection and slow mysql connection on local server?

There's a huge latency when I try to connect to our server (Ubuntu server 192.168.53.1) through SSH from a client PC (windows 7 + putty: 192.168.53.X) in a LAN. It takes like a minute for the ...
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5answers
140 views

Allowing communication only from one network to the other using 2 routers

I have our office LAN. In this LAN a small amount of computers has a separate lan that can comunicate with the main one but not vice versa. Big lan is like 10.0.0.x and the small separated one is ...
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918 views

Astaro Security Gateway Firewall/Proxy won't let me access my local webserver: is PAC file the best solution?

I have this Astaro Security Gateway Version 7 which acts as a firewall and proxy... I need to access from all the office to a pc on my lan that has apache on it: 192.168.1.100 When I open it Astaro's ...
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1answer
616 views

Slow remote desktop connection to VPS

When I use Windows 7's remote desktop connection to our company's VPS (Win Server 2008 32bit) I receive a very slow connection - most of the times it actually grinds down to a complete halt. This is ...
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2answers
154 views

webserver access problem

I forwarded public IP address to local IP 10.10.101.xxx(server address). On that server is my web. From LAN I have typing 10.10.101.xxx to view website.How to set the LAN to access on my website with ...
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5answers
193 views

How to detect weak points in my lan

I am starting to "polish" the LAN here at my new work and since it's the 1st time I face sommething that big (almost 300 clients a switches, proxy) I would like to understand easily where I get weak ...
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4answers
1k views

Should / Can I use DNS Records to list “Private Hosts in Private LANs”?

This is a theoretical Question: Given I have several Serves that both have a Public IP Address as well as a private IP Adress (192.xxx Range). Both Addesses are used for different Services. I do not ...
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3answers
800 views

Setting up VPN access over home dsl router?

I have a ADSL connection at home, however it is not static ip address based, and the ip changes every couple of hours. here is how the setup looks like Internet ------ ADSL Router --------Internal ...
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2answers
389 views

Search for files on file server

I need a software that would let me search files on my file server from other computers on the local network. My file server runs OpenSolaris. Preferably something that would offer the search via web ...
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1answer
362 views

Cisco Router/Firewall Port Forwarding

We have 8x IP CCTV Cameras and 1x NAS for recording on a LAN (with an internal address range) and port forwarding from a single WAN address to connect to each. For instance, by connecting to port 8009 ...
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2answers
393 views

802.1x authentication on LAN

i want to configure a linux as gateway (dhcp and nat) and i would like to add 802.1x as authentication protocol. My question is, i remember in the past, that it has a strong connection with the port ...
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1answer
110 views

How to find free machines connected to a network?

I am connected to a campus network. I have access to all the machines. I want to run some simulations on some of these machines. For this purpose I need to find out machines on the network on which no ...
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1answer
238 views

how to configure asynchronous ppp connection on a lan

how can i configure asynchronous ppp connection on a lan so that ppp connection to ISP is made (the Internet) only when there is a request from a local net to and disconnect if there is no activity ...
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1answer
155 views

Is there a network ID for host among LAN?

A router exposes itself to outside by IP like 66.249.89.104 and many hosts can connect to it to form a Local Area Network. My question : Is there a way to identify a specific host in that LAN? All ...
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245 views

VLAN vs traditional switch technology

Would you say Virtual LAN (VLAN) is superior to a traditional hardware switch? What are the pros and cons of using either of these technologies?
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190 views

Erratic windows LAN behaviour

Client has a LAN comprising about 8 windows xp professional computers and a windows server machine. My software runs on all 8 and share files stored on the server. A problem has arisen with the ...
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2answers
179 views

Connecting Two LANS

I have dd-wrt installed on the firewall to my network and I would like to have two external IPs by having two routers and connecting their LANS. I already have two external IP addresses. This way we ...
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259 views

Why we need different types of VLANS [closed]

Why we need different types of VLANs like Port based,Protocol based ... Give me situations where exactly those types are useful
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why we need VLAN in any network?

What is the use of VLAN in networking.Can any one point out a scenario where VLAN is useful
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323 views

What is the relation between a VLAN and STP

I want to know the relation between VLAN and STP protocol.Since STP is running over each port,how VLANs associated with this.Also I want to know the MIB which gives the data regarding STP for a ...
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2answers
4k views

Apache: redirect subfolder to another IP in the LAN

I have webserver1 behind a router currently serving all http traffic to mydomain.com. I just added webserver2, and want to redirect mydomain.com/server2 traffic to that box. To the user, the redirect ...
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1answer
459 views

Connecting Snow Leopard 10.6.4 to a Linux shared folder using Samba

I'm trying to connect to a web server running on Linux CentOS 5.5 where I've shared a folder. I'm trying to connect to the directory with Snow Leopart 10.6.4 client without success. On CentOS I've ...
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542 views

How to create routes for LAN IPs in Windows XP

Hello i'm trying to use lan and 3g network at the same time on XP, as per previous questions i need to create routes for lan ip ranges. How can i do this
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5answers
574 views

What are the best LAN communication systems? [closed]

What are the best messaging and VOIP systems for medium to large corporate networks? What have you found to be the best in your experience and why? It should support: Instant messaging Video and ...
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3answers
111 views

Connecting Ubuntu server to internet through lan

I have an old computer running Ubuntu 10.04. I installed a LAMP server on it and it works fine; however, the computer is connected to the internet through a large network connected to one modem. I ...
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3answers
531 views

How to track down connectivity drops

My company just changed it's old firewall (Zyxel ZyWALL 70) with a new one (Zyxel ZyWALL USG 300). Everything seems to be working fine but sometimes, in a non-periodic span of time, connectivity ...
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2answers
942 views

Automatic Mapping of LAN using Traceroute?

range. Then, it should compare the data to see that all packets are going through a specific IP, and denote that as a switch and build a tree. This way, I need a software that can automatically ...
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4answers
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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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2answers
413 views

Get IP from DHCP - Ubuntu

apparently someone on my LAN is running his own DHCP server (by mistake i assume) and broadcasting an address (yep it is 192.168.1.155) prevents me to connect to the 'real' DHCP server ...
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1k views

Windows 7 Enterprise Edition Failing to Get DHCP address

All my Windows 7 Enterprise Edition 64bit laptops have now failed to get an IP address from DHCP via either a wired or wireless connection. The majority of these machines are Dell Latitude 1545 but ...
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5answers
808 views

Working on large files across a LAN [closed]

I work in a small (6 employee) web/design shop. We have a file server that we use to store large design documents (photoshop files, flash source files, indesign etc) and other work-in-progress. The ...
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1answer
281 views

ASA >> Switch >> Server WAN/LAN Routing to NIC ports

I bought a Dell R610 to setup VMware ESXi -- the server has 2X dual port NICs. Normally with a single dual port NIC I assign my WAN IPs to eth0 and LAN IPs to eth1. With the new server I'd like to ...
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6answers
3k views

Setting up DNS for a LAN without a top-level domain name

I am attempting to set up a LAN's domain-name server. My router has a given domain name from the ISP- something like foobar21.verizon.com. I would like to assign my local computers names such as, ...
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4answers
748 views

Can we connect LAN (Ethernet) with a wide area network?

Suppose we want to connect a local area network (Ethernet) with a wide area network, the question arises is, can we connect a local area network with wide area network? If we directly connect the ...