Local Area Network

"ping" will test for connectivity to a device at the Ethernet Address Level...but that does not mean the device's software is actually talking to the network or responding to the network. "ping" WILL tell you the device is wired up and has power applied to it's network interface board.

Twisted pair wire is placed inside a thin metallic shielding, similar to aluminum foil, and is then enclosed in an outer plastic casing. The shielding provides further electrical isolation of the signal-carrying pair of wires. Shielded twisted pair wires are less susceptible to electrical interference caused by nearby equipment or wires and, in turn, are less likely to cause interference themselves. Because it is electrically "cleaner," shielded twisted pair wire can carry data at a faster speed than unshielded twisted pair wire can.

The disadvantage of shielded twisted pair wire is that it is physically larger and more expensive than twisted pair wire, and it is more difficult to connect to a terminating block.

To keep from wasting addresses you need to use a short lease time so that the IP addresses are reused after the class. Set the lease time interval to a value that is shorter than the class period.

Short answer is that 'dropped packets' happens when the network is unstable so not all of the information sent out by you is received at the other end. One reason you have 'unreachable host' is the host computer is switched off. There are other reasons but making the network more reliable is the best solution

Hi,

True BNC connectors have four parts. The main body, a metal washer, a specially shaped rubber washer and a screw in ferrule to hold it all together. They also require some soldering to do it properly.

And since you're asking, installing a true BNC connector would require several pages of typing to explain how. There are two alternatives: Find a broadcast engineer or video technician who'll show you the process, or just get some screw on type connectors, which are easy to figure out and install. They'll also work quite dependably, too.

Hope this helps,

Cubby

Hi, I assume the cable is UTP cable. 1. Cable length (from the switch/hub to the PC) is more than 100 meters
2. Poor crimping (putting connector)
3. Poor connections Jack panel
4. The IRQ address of the LAN card is clashing with any other device in the PC
5. Connecting 100Mbps card to 10Mbps network
6. IP address clash with another PC's IP address (same IP defined in more than 1 machine)
7. Route table definition in the Switch/Router Things like this are the main cause of poor performance Hope this helps

Well usually a modem a router and an Internet provider of some sorts

If you have switch from hub to switch, the answer is yes of course. Hub uses broadband connections all the time, when switch creates a virtual channel for each connection. It protects your network from somebody who wants to collect network packages which do not belong to that person. Some router have manageable interface and allow even filtering. Depending on model you are using you benefit more or less but still benefit anyway.

click on start menu botton than click run and tape cmd, a black window will be open tape "net view"

6

Intrusion Prevention System (IPS) - Software which monitors network traffic or system activities for malicious activity and attempts to block said activity from accessing your network/machine.

Intrusion Detection System (IDS) - Software which monitors network traffic or system activities for malicious activity and alerts users on possible threats.

Star topology is the simplest and most comprehensible example of a centralized network there is. In star topology, all of the computers, printers, security feeds, etc., etc. that use the network are connected to a centralized hub, rather than to each other, in a star-like shape. The main advantage of this is that if one device goes down, the others stay up.

The obvious disadvantage of this is the network's dependence on the hub; if it fails, everything fails. Many chain-store type business's, much to the frustration of their employees, have actually turned this disadvantage into an advantage. Instead of spending money on quality devices at the store level, the business's put all of their money into the hub, then add a backup hub as a fail safe, and then finally an off-site disaster recovery hub for emergencies.

The port is one of buss word in computer networks. it is a number which can be used to identifies the physical coponent in the network ie.. ip address and also logical number of an applications available in application layer in TCP / IP.

Meta-analyses centrally collect logging data.

less than the data transfer rate

Crossover cables are used when you are connecting two devices of the same type together. e.g. connecting two routers or two switches or two computers.

A straight through cable is used to connect devices of different types. e.g. a computer to a switch or router.

Using the correct cable is less important these days though as most networking devices have the capability to auto-sense what cable is being used and what cable is needed. The devices can simply change their configurations to whatever is needed to make the connections work. This technology is called Auto-MDIX (Media Dependant Interface Crossover).

No

because that is the last number of the subnet. the last number in a subnet is used as the broadcast domain. the first number is also not usable. an example would be:

id 192.168.20.XX

subnet 0f 255.255.255.128

192.168.20.0 and 192.168.20.127 may not be used and 192.168.20.128 starts the next subnet making 192.168.20.128 and 192.168.20.255 not usable

On the transmitting end, there's a couple different methods. Linear amplification is a common one, for simplex, half dulplex, and full duplex transmission units. For full duplex transmission, the use of repeater towers. On the receiving end, preamplification of the incoming signal.

Use a straight through cable, just as you would with a hub or switch.

100

google search for subnet mask calculator:

10.10.128.1 - 10.10.159.254 -- effective range

10.10.128.0 is the marker IP
10.10.129.255 is the broadcast IP.

To calculate a host's network ID given its IPv4 address and subnet mask, you follow a logical

process of combining bits known as ANDing. In ANDing, a bit with a value of 1 plus

another bit with a value of 1 results in a 1. A bit with a value of 0 plus any other bit results

in a 0. If you think of 1 as "true" and 0 as "false," the logic of ANDing makes sense. Adding

a true statement to a true statement still results in a true statement. But adding a true

statement to a false statement results in a false statement.

Depending on the Make & Model of your modem, you are likely best off heading to the modem manufacturer's website, looking for the PDF or manual for the modem. If the device offers a "health" or administration page, the preferred method to access it would be found there.

Look on the bottom of your modem, it's there on most.

IP addresses are dynamic which means it creates the ip address automatically so static IP's will not work and they are never printed on any modems because each location is different. Or if you are trying to get into the GUI of the modem you type in 192.168.100.1

The answer is yes. If you need more information, please be more specific on what it is you're trying to do.

Yes. Generally you plug your internet connection into the router, then an ethernet wire from the router to the switch. More than likely, depending on what set-up you previously had, your going to have to change your tcp/ip settings. I could probably guess what set-up you have... but you'll have to be more specific before we can give more advice.