Solved

Subnetting

Posted on 2009-04-07
3
248 Views
Last Modified: 2012-05-06
This might be simple but I am wondering, if I have one network at 255.255.255.0 and another at 255.255.128.0 I can talk to the 255.255.255.0 network if I am at the 128 network but not backwards without a router. Why is this? If I am at 255.255.128 can I talk to all the other network addresses above mine but not below?
0
Comment
Question by:sierrawolf
3 Comments
 
LVL 25

Expert Comment

by:Ron Malmstead
ID: 24089305
two machines cannot "talk" to each other unless they are on the same subnet range... OR you have some sort of routing between the subnets.
0
 

Author Comment

by:sierrawolf
ID: 24089377
Thank you, that is what my understanding is, but When I static my subnet to 128 I can talk and ping all addresses in my network of 200 computers that are mixed with 128 and 255 as their subnet; but when I static my address to 255, I can talk and ping all 255 but no 128 address.
0
 
LVL 3

Accepted Solution

by:
KvChaos earned 500 total points
ID: 24094759
After converting them to binary.

1000 0000 - 128
1111 1111 - 255

Take 0 for something like a wild card. Hence, 255 fall within 128 range.
0

Featured Post

Netscaler Common Configuration How To guides

If you use NetScaler you will want to see these guides. The NetScaler How To Guides show administrators how to get NetScaler up and configured by providing instructions for common scenarios and some not so common ones.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
Public DNS? 10 78
Which is more secure: EAP or machine certificate for IKEv2 VPN? 1 91
Map local drive to folder for all rdp users 7 43
Microsoft Surface Pro 4 networking 4 32
If your business is like most, chances are you still need to maintain a fax infrastructure for your staff. It’s hard to believe that a communication technology that was thriving in the mid-80s could still be an essential part of your team’s modern I…
When you try to share a printer , you may receive one of the following error messages. Error message when you use the Add Printer Wizard to share a printer: Windows could not share your printer. Operation could not be completed (Error 0x000006…
Viewers will learn how to connect to a wireless network using the network security key. They will also learn how to access the IP address and DNS server for connections that must be done manually. After setting up a router, find the network security…
In this tutorial you'll learn about bandwidth monitoring with flows and packet sniffing with our network monitoring solution PRTG Network Monitor (https://www.paessler.com/prtg). If you're interested in additional methods for monitoring bandwidt…

821 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question