Dual band router question

[Reliant]

This is silly but I can't find an answer, maybe because it's too simple/stupid a question. If I have a dual band router that does 2.4 and 5ghz simultaneously, and have say 2 computers joined to the 5ghz band, and my other devices on the 2.4ghz band, can they communicate with each other? Would I be able to stream from my laptop on the 5ghz band to my PS3 on the 2.4? I'm a little confused since you end up using 2 different SSIDs.

Thanks!

 

[JackMDS]

If they are on the same Network, then It just a matter of configuring Network Sharing.
Same network means same subnet.

On Subnet

Classical IP looks like this (example), 192.168.1.x The first three groups are also called Subnet , and they identify the specific Network, x can be a number from 0 to 255, and it identifies each unique device on the Network.

An IP of 192.168.2.x would be a Subnet of another Network.

 

[Reliant]

If they are on the same Network, then It just a matter of configuring Network Sharing.
Same network means same subnet.

On Subnet

Classical IP looks like this (example), 192.168.1.x The first three groups are also called Subnet , and they identify the specific Network, x can be a number from 0 to 255, and it identifies each unique device on the Network.

An IP of 192.168.2.x would be a Subnet of another Network.

Would network sharing be on be default on a consumer dual band router? I'm not the best with this stuff, I just want to make sure all my stuff can talk without too much headache or hacking.

 

[JackMDS]

Network sharing has nothing to do with the Router per-se. If all the computers are on the same Network the computers can be configured to share.
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Win7 when configured on peer-to-peer Network has three types of Sharing configurations.

HomeGroup = Works only between Win 7 computers. This type of configuration makes it very easy to Entry Level Users to start Network sharing.

Home Network or Work Network = Basically similar(and better) to the previous methods of Work Group sharing that let you control what, how, and to whom folders would be shared with.

Public Sharing = Public Network (like Internet cafe) to reduce security risks.

For best results log to each computer's System Screen and set all the computers to be on a with the sameWork Group name while each computer has its own unique name.
http://www.ezlan.net/Win7/net_name.jpg

Make sure that the Software Firewall on each computer allows free local traffic. If you use 3rd party Firewall On, Vista/XP Native Firewall should be Off, and the active Firewall has to adjusted to your Network IP numbers on what is some time called the Trusted Zone (consult your 3rd Party Firewall instructions

General example, http://www.ezlan.net/faq.html#trusted

Please Note that some 3rd party Software Firewalls keep blocking aspects of Local Traffic even it they are turned Off (disabled). If possible configure the Firewall correctly, or totally uninstall it to allow clean flow of local network traffic.
If end up with the 3rd party software uninstalled or disabled, make sure that Windows native Firewall is On .
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If your network is comprised of Win 7 only and you want a simple Network, use this.
http://windows.microsoft.com/en-us/windows7/help/videos/sharing-files-with-homegroup
After configuring the Homegroup scroll down to the Permission/Security section.
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Networking Win 7 with other version of Windows as Work Network (works very well if all computers are Win 7 too).
In the Network Center, clicking on the Network type opens the window to the right.
Choose your type of Network. Notice the check mark at the bottom, and check/uncheck it according to your needs.
http://www.ezlan.net/Win7/net_type.jpg
Win 7 - http://windows.microsoft.com/en-us/...mputers-running-different-versions-of-Windows

Win 7 Work Network specific folder sharing - http://www.onecomputerguy.com/windows7/windows7_sharing.htm

Vista File and Printer Sharing- http://technet.microsoft.com/en-us/library/bb727037.aspx

Windows XP File Sharing - http://support.microsoft.com/default.aspx?scid=kb;en-us;304040

In Win XP Pro with simple sharing Off, you can Visually see the Permission/Security setting , and configure them to your liking.
http://www.microsoft.com/windowsxp/using/security/learnmore/accesscontrol.mspx#securityTab
Printer Sharing XP - http://www.microsoft.com/windowsxp/using/networking/expert/honeycutt_july2.mspx

Windows Native Firewall setting for Sharing XP - http://support.microsoft.com/kb/875357

Windows XP patch for Sharing with Vista (Not need for XP-SP3) - http://support.microsoft.com/kb/922120

When finished with the setting of the system it is advisable to Reboot all the hardware including the Router and all computers involved.
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If you have Permission and Security issues with Vista/Win7, check the following settings.
Point to the a Folder that meant to to be share. Right click and choose properties.
In the properties
Click on the Security tab shown in the pic bellow to the right) and check that the users and their permission (shown in the pic bellow center and left) are correctly configured. Then do the same to the Permission tab.
This screen shot is from Win 7, Vista's menus are similar.
http://www.ezlan.net/Win7/Permission-Security.jpg
In both the Security panel, and the Permission panel you have to highlight each User/Group and examine that the Permission Controls are checked correctly.
When everything is OK, Reboot the Network (Router, and computer).
* Note . The Groups and Users shown in the screen-shoot are just an example. Your list will look the way your system is configured.

**Note . All users that are allowed to share need to have account onall the computers that they are allowed to connect to.
Everyone is an account, it means a group of all of the users that already have an account and been established as users. It is available to avoid the need of configuring permission to each on its own, it does not mean Everyone that feel that they would like to login.
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If more control is needed take a look at this page, http://windows.microsoft.com/en-US/windows-vista/Share-files-and-folders-over-the-network-from-Windows-Vista-Inside-Out

 

[SirGCal]

Think of it this way; it doesn't matter if you have a wired computer, an old B laptop, a G laptop and an N of each flavor connected. They can all talk together. The different protocols just allow each individual box to talk to the switch/router. The Router then controls the communication between systems to each other and the WAN (internet). Pretty simple.

 

[Reliant]

Think of it this way; it doesn't matter if you have a wired computer, an old B laptop, a G laptop and an N of each flavor connected. They can all talk together. The different protocols just allow each individual box to talk to the switch/router. The Router then controls the communication between systems to each other and the WAN (internet). Pretty simple.

Thanks for dumbing it down for me!

 

[Skud]

All the above plus:

If your router has a feature called "station separation" you will want this to be OFF as it will prevent your wireless clients from talking to one another.

A good example of when you would want to enable station separation would be for a public access point like a coffee shop or hotel. You don't want the guest's systems to be able to see one another.

Riley