03-11-2002
first of all, the example you gave is incorrect. if the first octet of the ip address starts with 192, then it is a class C address, not a class B. This means that the mask is 255.255.255.0 by default.
Second of all, you won't have 255 possible ip addresses, you will only have 254. The formula is 2 to the nth power - 2, where n represents the number of unmasked bits i.e., number of zeros in the fourth octet. the minus 2 is because you can't use zero (network number) and you can't use 255 (broadcast). However, some of your newer routers and switches will accomodate the zero network.
Third, if you are connecting computer to computer, make sure your cat 5 cable is a crossover cable, not a straight through or roll over. when connecting like devices, i.e., computer to computer, pin 1 is crossed to pin 3 and pin 2 is crossed to pin 6.
if you have any more questions, feel free to email me personally.
M.
8 More Discussions You Might Find Interesting
1. Slackware
Hey, I'm new to Linux. I have a few questions about it. I run Slackware.
After the installation the Linux installation had problems with my old hardware (network card, sound card) so I removed them and Linux would start.
But now, I can't seem to use the network card in Linux because it's not... (3 Replies)
Discussion started by: RellioN
3 Replies
2. UNIX for Dummies Questions & Answers
I have a SunOS 5.8 box and have always downloaded & applied patches via my PC, but I want to be able to go out to sunsolve directly from the console ... however, I guess it doesn't know the IP of our domain's DNS server or something.
Where are these setting held on a Sun box??? (1 Reply)
Discussion started by: FredSmith
1 Replies
3. UNIX for Advanced & Expert Users
hi everyone
this is dipendra, i am interested in networking,i know simple socket programming . and now i am wonder to get in to audio socket. i have no clue how to build audio socket.so i am looking if u can provide me a link regarding the audio socket building tutorials. (1 Reply)
Discussion started by: dipendra_regmi
1 Replies
4. IP Networking
Can anybody help me regarding networking using c language
i know how to capture the packets and to verify it`s protocol destination and source ip etc.
Can anybody help me to direct a packet coming to an ip to some other ip of my choice ........
Hope reply ... (0 Replies)
Discussion started by: Sannair
0 Replies
5. IP Networking
Hi,
I have a question on networking. I will try to ask with an example...
Suppose i am googling something, as in searching something in the google page. In this case what I basically want to know is, does the client do a connect evrytime to the server whenever a search is done in google,... (1 Reply)
Discussion started by: naan
1 Replies
6. IP Networking
I am running Ubuntu Desktop and Ubuntu Server editions on two separate VMs.
For the desktop I have set network adapters:
Adapter 1: internal network called intnet
Adapter 2: NAT
Server:
Adapter 1: internal network called intnet
Now I'm suppose to set ip addresses which I'm pretty sure... (5 Replies)
Discussion started by: shadowcat
5 Replies
7. IP Networking
Hii,
Today morning I attended an interview, they had showed me the attached image and had few questions about that.
The image shows a network with 4 nodes viz.. A B C & D and two switches(layer2) and a router(layer3). Just wanted to know can node A and node D would be on same network e.g... (4 Replies)
Discussion started by: zing_foru
4 Replies
8. IP Networking
hi
From mt windows machine I can ping a LINUX machine but there is no arp entry for the same LINUX on my windows.
How is it possible and what can I do to add the arp entry as I need it.
thanks (1 Reply)
Discussion started by: leghorn
1 Replies
BlueZ(1) User Commands BlueZ(1)
NAME
dund - BlueZ Bluetooth dial-up networking daemon
DESCRIPTION
DUN daemon
SYNOPSIS
dund <options> [pppd options]
OPTIONS
--show --list -l
Show active DUN connections
--listen -s
Listen for DUN connections
--dialup -u
Listen for dialup/telephone connections
--connect -c <bdaddr>
Create DUN connection
--mrouter -m <bdaddr>
Create mRouter connection
--search -Q[duration]
Search and connect
--kill -k <bdaddr>
Kill DUN connection
--killall -K
Kill all DUN connections
--channel -C <channel>
RFCOMM channel
--device -i <bdaddr>
Source bdaddr
--nosdp -D
Disable SDP
--auth -A
Enable authentification
--encrypt -E
Enable encryption
--secure -S
Secure connection
--master -M
Become the master of a piconet
--nodetach -n
Do not become a daemon
--persist -p[interval]
Persist mode
--pppd -d <pppd>
Location of the PPP daemon (pppd)
--msdun -X [timeo]
Enable Microsoft dialup networking support
--activesync -a
Enable Microsoft ActiveSync networking
--cache -C [valid]
Enable address cache
DUN daemon February 2003 BlueZ(1)