basic networking

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# 1  
Old 03-10-2002
Question basic networking

Here are some really stupid questions, but I'm not really sure what I'm doing, so any help will be appreciated. I'm trying to learn linux and basic networking. I have 2 computers: one has windows and the other I just installed Red Hat 7.1. In the network configuration screen of the Red Hat install, where do I get the IP address, network, broadcast, hostname, gateway & DNS? Can I just make these up? Also, How do I connect the computers? Right now I have the RJ45 from one network card to the other.
# 2  
Old 03-10-2002
you must use the same rank of ips for the two pcs.
if you have in you windows box you can assing to you linux box. you can play with the ip number depende of you mask.
if you havea mask, you only can use 255 ips for your network, this is a class C network.
this will be a class B network

the hostname is the name of you box, you can use you name like bob, but you can't repeat names in other pc.
gateway is the box or router that connects you lan with internet or other network.
dns is the service that translates name address to ip address. if you need you can set up a dsn server on your linux box, or simple use the dns server of your isp.
if you are using one silgle utp cable to connect the pcs, you must use the code A in one rj, and the code B in the other.

# 3  
Old 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 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.

# 4  
Old 03-11-2002
true true true.
sorry Smilie
# 5  
Old 03-14-2002
Thanks for your help. I'm still having some problems. I set up my linux computer as follows:

I also bought a crossover cat 5 cable and a linux compatible modem. When I try to ftp or telnet to from my windows computer, everything times out. Am I missing something?

Also, I installed the new modem and it works (dials and connects), but netscape won't open any websites.
Please help.

# 6  
Old 03-21-2002
Windows Configuration

how is your windows machine configured? wow i have spent many of nites before tests trying to find the information clearly explained like manderson19 did nice job and you were right on the money....
# 7  
Old 03-31-2002
I set up the windows computer with the same configuration except an ip of

I can dial out and connect to the internet with both computers (separately) now.

When I ping from the windows computer or from the linux box, they both time out.

I must be missing something somewhere. I had no idea this would be so difficult when I started. Any other suggestions will be appreciated.

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