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If you do you will basicall have 1 Giant Lan ecompassing 100.100.x.x as one. &nbsp;The Use of the 255.255.255.0 subnet mask lets you break these up. &nbsp;Grom the sound of you problem it sounds like the device being added doesn't have its Default Gateway configured corectly or there is an arp issue on its gateway.
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If you do you will basicall have 1 Giant Lan ecompassing 100.100.x.x as one.  The Use of the 255.255.255.0 subnet mask lets you break these up.  Grom the sound of you problem it sounds like the device being added doesn't have its Default Gateway configured corectly or there is an arp issue on its gateway.

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Hi,<br />
<br />
I have 4 sites for my company in different locations, each of the sites is configured as different subnet (for example site 1 is 100.100.100.0, site 2 is 100.100.101.0<br />
...etc). Now I have a device that is connected to the network in one of the sites (this device is PBX VOIP), when I try to ping this device from any site it gives me requested time out, however if I ping it from his own network it works! but if I ping any other device from any other site/network it works fine! <br />
<br />
It seems to me that I need to upgrade the subnet mask on the networks to be 255.255.0.0, is that a good solution? What are the impact of such action?<br />
<br />
Thanks,<br />
Rami
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Hi,

I have 4 sites for my company in different locations, each of the sites is configured as different subnet (for example site 1 is 100.100.100.0, site 2 is 100.100.101.0
...etc). Now I have a device that is connected to the network in one of the sites (this device is PBX VOIP), when I try to ping this device from any site it gives me requested time out, however if I ping it from his own network it works! but if I ping any other device from any other site/network it works fine! 

It seems to me that I need to upgrade the subnet mask on the networks to be 255.255.0.0, is that a good solution? What are the impact of such action?

Thanks,
Rami

Change from Class C to Class B!

The Windows operating systems have distinct methodologies for designing and implementing networks, and have specific systems to accomplish various networking processes, such as Exchange for email, Sharepoint for shared files and programs, and IIS for delivery of web pages. Microsoft also produces server technologies for networked database use, security and virtualization.

Windows Networking

Network analysis is the process of identifying and remediating the processes and systems within a network, including performance, connectivity and security. The process is performed through the use of tools developed for monitoring and analyzing network activity. Network problems that involve finding an optimal way of doing something are studied under the name combinatorial optimization. Examples include network flow, shortest path problem, transport problem, transshipment problem, location problem, matching problem, assignment problem, packing problem, routing problem, Critical Path Analysis and PERT (Program Evaluation & Review Technique).

Network Analysis

Network design and methodology, also known as network architecture, is the design of a communication network. It is a framework for the specification of a network's physical components and their functional organization and configuration, its operational principles and procedures, as well as data formats used in its operation. In telecommunication, the specification of a network architecture may also include a detailed description of products and services delivered via a communications network, as well as detailed rate and billing structures under which services are compensated.