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Local Area Network
Questions concerning the setting up, troubleshooting and operation of wired LANs used by businesses and other organizations
4,003 Questions
Generally, it is easiest to set up a new router with a wired connection, so my suggestion would be to plug the router directly into a computer and set it up as is needed for your environment. Without knowing your network configuration or the model of router you have, I cannot give you any specific advice at the moment but if you would like to talk further about this or have other more specific questions, please feel free to drop me a line. I'm always glad to help!
Can a subnet mask have letters in it?
If you represent it in Hexadecimal, sure. That's very uncommon in IPv4, but just fine for IPv6.
Why is it not possible to use the subnet mask 255.255.255.254?
Because that would only allow one address, and two are reserved (One for broadcast, one for a gateway).
So that would mean that the lowest possible subnet mask which would be usable would be 255.255.255.252, with three spare addresses. Even so, this would only allow one additional terminal on the network.
This question is unanswered.
How do you write an email to supervisor expressing concerns?
You can either message supervisors, or you can email them. Also some supervisors have their email addresses on their bio pages.
How do you boost the signal from a Local Area Network?
A signal on a network can get a boost with a Repeater or a Router. They are spaced at a calculated amount of feet and when the signal reaches them it boost up the strength of the signal to the next Reaper or Router or to the ending address. Hope that helps, The PC Doctor.
Comparision between telnet and ftp?
FTP is a File Transfer Protocol (a method of transferring files from one location to another.... Telnet would be more of an emulation/connectivity protocol where you can connect to another system and Signon / natigate through the other systems menu option / type commands etc.... eg. you could use Telnet as 5250 emulation and sign on to the iseries (AS/400) once, connected you can do whatever the host system/user security permits you cannot do this in ftp
What is the default network mask of the IP address 95.200.102.03?
class A address - default mask is 255.0.0.0
one packet
One packet, then prepare yourself for jail.
What is group of computers that are interconnected in order to share information or documents?
its a computer network
What ip address has the subnet mask 99.0.0.0?
i feel there is a typo in the question itself because in general the subnet masks can have any value between 255.0.0.0 and 255.255.255.252 .
How switch works in terms of knowing how to forward message frames?
A switch builds a table of MAC addresses as it passes packets from port to port; ARP requests help with this by requiring clients that are connected to the switch reveal what their IP and MAC addresses are.
Why would 6-8 users on a 40-user network drop offline intermittently?
I think the problem could be in how the Network is configured and the Operating System used. If the network is configured to use a Domain Controller (DC) then your problem could be the Master Browser Service. If the computers are configured to be in a Workgroup (No DC). Then it could be the same service but a different problem. The Master Browser is the Service that tracksd network resources. In a Workgroup environment an election between the computers is held to find out who will be the master browser. If the computer who is elected Master Browser is turned Off. Then another election is held to find a new one. If theses 8 computers are on a segment of the network that has a slow link, they may not get notified of the new Master Browser and in a sence will "drop off" the network. I would need more information about the network, computers and OS to be of anymore assistance. One of two reasons are high probabilities: 1) Network wiring somewhere is questionable (hubs, not switches?) or 2) You're using WinME or WinXPH on these 6 or 8 PCs. Considering this is a network that has being up for a few months and has just suddenly one day lost users. Especially if they were on the network and then got knocked off, I would definitely be looking for any malicious activity. You would be surprised how many people will decide they want a day off work, or just want to cause hassle and will DOS your network.
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networks should slow down, not disconnect. Disconnects frequently occur when one or more users are streaming and loading the router. To make this as simple as possble;
- log into the router and set the MTU to 1492 (the default will be 1500).
What are some devices that can act as gateways?
Router
Network + Guide To Networks Review Question Chapter 6 #15
Read the book first then answer
Why would a network administrator choose to unbind a protocol on a server?
Typically if a protocol is no longer in use on a network then it would be unbound from the interface, both on servers and on clients.
How do you get files from another computer using a LAN cable?
The easiest way is to just take a LAN cable and connect the two computers . or you could use a router in between . now if you are using vista or win 7 [ dont really use xp so you gotta find out these settings yourself] go to the network and sharing center and turn on
1-network discovery
2-file sharing
3-public folder sharing
turn off
1- password protected sharing
copy what ever data you need to either the other computers public folder or into the same computers public folder and copy it to the other computer using the other computer .
IF YOU ARE USING WINDOWS 7
simply make a homegroup it makes file sharing very easy . just right click on the folder you want to share , go to the sharing tab and select read/write homegroup option . done now go to network from the other computer and copy it to that computer . :D
The easiest way to do this is to convert your subnet mask, 255.255.240.0 to binary. This subnet is a modified class B network.
To find the IP address range
To find the IP address range, you need to compare your IP address and Subnet mask in binary.
Your subnet mask in binary would be:
1111 1111 . 1111 1111 . 1111 0000 . 0000 0000
For reference, your IP in binary would be:
1001 1010 . 0001 0000 . 0011 0100 . 0001 0000
If we match up your IP to the network bits of your subnet, like so:
IP:
1001 1010 . 0001 0000 . 0011 0100 . 0001 0000
Subnet:
1111 1111 . 1111 1111 . 1111 0000 . 0000 0000
..we can match the network bits with the IP address to come up with the base network address to see where your network starts.
1001 1010 . 0001 0000 . 0011 0000 . 0000 0000
When we convert that back to decimal, it becomes:
154.16.48.0
To find the highest addressable IP in our network, we take the above binary IP and change the host bits to 1.
1001 1010 . 0001 0000 . 0011 1111 . 1111 1111
In decimal, that becomes:
154.16.63.255
Your range is 154.16.48.0 to 154.16.63.255. Remember that 0 and 255 are broadcast addresses.
Finding the maximum possible hosts of a given subnet
If you are just looking for the total number of hosts possible and are not concerned with what your IP range will be, you only need to convert your Subnet mask to binary.
Remember that your subnet mask of 255.255.240.0 in binary would be:
1111 1111 . 1111 1111 . 1111 0000 . 0000 0000
Take the host bits (the zeros) and switch them to ones. Convert them from binary to decimal as one large string:
Binary: 1111 1111 1111
Decimal: 4,095
The straight, simple answer to your question is 4,095 hosts. I can't give you a straight answer on subnets, but assuming you're talking about going from a Class B to a modified Class B network, you'd have 15 subnets with 4,095 hosts each. It is more likely that you're going from a Class C (255.255.255.0) to a modified Class B in which you now have, if you will, a negative number of subnets compared to your original network.
Modifying a subnet to accomidate a given number of hosts
If you know you need, for example, 800 hosts, you can change your subnet mask bit by bit. Switching a network bit to a host bit effectively doubles the number of hosts you can have on one network. The default class C network provides 256 hosts (including broadcast). 255.255.254.0 will double the host count to 512 hosts (including broadcast). This also changes the Class C network to a modified Class B network. Switching one more bit will again double the host count to 1024 hosts (including broadcast) with a subnet mask of 255.255.252.0.
On what basis are IP numbers allocated?
If your question is about ip address allocation by isp:
whenever a user connect to the isp's network, from a specified range, its server allocates a dynamic ip address mostly or it can be static. if it is static, then the user will have the same ip address for a very long time (based on the deal). But if it is dynamic then it means it will change after some time or upon reconnect.
now the if your question is about your LAN (at work etc):
a computer again can have a fixed ip address assigned by the administrator or dhcp server can give your PC an ip address upon start. You may retain the same ip address for some days if such permission has been granted by the admin.
IP addresses in LAN are normally not public addresses and therefore the range may not matter as long as it is in the same network segment.
Example of application used by the UDP and TCP?
UDP: DNS, TFTP, DHCP...
TCP: SMTP, HTTP, HTTPS, DNS, FTP, SHH, Telnet...
What a router can do and a hub can not do?
Routers create a private virtual session for each connection, they do not broadcast your connection to all computers, they optimize network traffic.
Which osi model break data into smaller pieces?
The Transport layer breaks the application data into segments, or smaller pieces for transport across the network.
Which protocol is associated with Industrial Control System functional networks?
Inter-Control Center communications Protocol (ICCP)
