Question about DHCP on WRT54G

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• General question about DHCP network configuration

  In the past, I've always set up printers on network with a static IP address. With the proliferation of networked printers and progress in the printer driver software, I wonder if the static configuration is always recommended and necessary.

  Let's say I have install an Officejet 6500 wireless printer configured for DHCP and it gets an address 192.168.1.7. To continue, the printer driver is installed on the computers all networked and the printer port is listed as HPxxx192.168.1.7. After a break from running, say that the address assigned dynamically changes printer 192.168.1.5, leading to the question... to will the computers still be able to print to the printer who has now a new IP address? Basically, is the intelligent print driver so that he will direct the print jobs to the new address without additional configuration? (perhaps the answer varies depending on the printer model and the operating system of the client)

  I have installed HP network printers on a regular basis in a variety of operating system environments. So the question in more specific general. I don't feel a particular problem at this stage. But when I configure network printers in the future, an answer to the question will be useful.

  Thanks in advance.

  It depends on.  On older printers a static IP address is very important on the latest not so much. It is really dependent on the platform on which rests the HP software.  HP printers currentlyon market, in theory, do not need static IP addresses.

  In addition, when you set a static IP address, I always put one outside DHCP pool.  If the range is the range (.2 a.254) I reduced the scope and then put printers outside the pool.  This way there is never any conflict.

• questions about 2100 wlc and lwap connection

  Hello

  I have a few questions, I hope you can answer me.

  In fact, I have a controller connected to 3 Lwap 2100, and they are connected to the WCS. they have a static IP address.

  The distance between each point of access to more than 30 meters.

  1. the distance between the access points affect the accuracy or the stream. How can I calculate this

  2. because the APs use a static IP address, each customer should I connect to the network to add a static ip address? can I do the APs detect clients dynamically?

  I have lwapp reset guide, guide WCS configuration and configuration guide for WLC. If you have more documents or more pls share with me.

  BR

  Yamani

  Hello Ahmed,.

  Yes the distance between AP affect the wireless signal.

  to determine the best location of AP and the distance between them, as the site survey is necessary with the expert of the spectrum wireless or airmagnat...

  You can check the following links for design and RF management

  1) http://tools.cisco.com/squish/1Ea09

  2) http://tools.cisco.com/squish/51a58

  for other questions about DHCP, it is not a must that customer use static IP, you can always configure them with DHCP.

  as an extenal DHCP (like windows server), or on the WLC himself (to the title of controller-> > internal DHCP tab).

  Kind regards

  Talal

  =========
  Please note the answers that you find useful and mark as answer - when is it :-) - so that others can easily find

• Question about the issue of the Double NAT...

  Hah I posted for a little.  I have a question about Double NAT.  Is it wise to launch?  Reason why is that I have a WRT54G v6 router and the Zoom ADSL X 4 Modem/Router/gateway and it seems that sites take just a little more time to respond to Web sites.  I just want to know I have to turn off (i.e., go in with my router bridge Mode) or what.  Or leave it alone.  Now one last thing: that the problem of slow could actually be AT & T but I have the feeling that this isn't.

  What configuration options you have on the Zyxel to fill? What have you tried exactly?

  The basis for the first option is:

  * Bridged Zyxel.

  * Linksys configured for PPPoE with your user name and password for the internet connection.

  Instructions to fill the Zyxel are here or here depending on the exact model of Zyxel.

  The second option is:

  * Zyxel doing business as the router. I assume here that the Zyxel is on 10.0.0.2 with a subnet mask 255.255.255.0.

  Unplug the Linksys to the Zyxel. Connect a computer to the Linksys. Open the web interface of the WRT to http://192.168.1.1/

  On the main Setup page:

  1. change the LAN IP of 192.168.1.1 address 10.0.0.1.

  2 disable the DHCP server.

  3. save the settings. You will lose the connection. Unplug the computer.

  4. wire one of the numbered LAN ports of the Linksys for the Zyxel. Do not use the internet port of Linksys!

  Now you should be able to open the Linksys web interface to http://10.0.0.1/ all devices connected wireless of Linksys or connected to one of the three LAN ports must have a connection to the internet via the Zyxel.

• Question of DHCP Option 50

  I understand that the DHCP 50 option is for the customer asked the IP address.

  I have 3 questions about this...

  1. the DHCP server on the router maintains the MAC--> IP mapping during 24 hours right?

  What happens if I ask a non assigned a different IP address in the 24 hour window? My request will be granted each time?

  What happens if I ask for an IP address not assigned different after the 24 hour window? I guess that my request will be granted every time in this case.

  2. always in the window of 24 hours, if the requested IP address is leased to another network device, but the device has long been disconnected,

  I get the requested IP address?

  2 do all versions of routers support this option?

  Depends on the implementation of the DHCP server. The RFC does not say how to handle 50 option. The DHCP server can but should not affect the requested IP address. It can completely ignore this option.

  So:

  How long the server retains the mapping? Depends on the server. It may or may not remove the mapping after the lease has expired (which I assume is the 24 hours, that you reference).

  Ask a different IP address during the valid lease? Depends on the server. The server may grant each time. Another server can refuse each time.

  I think it is more common to not to grant the request. Internally the DHCP server manages static IP mappings and pool all the same except the static IP mapping has an unlimited lease duration. As long as a request from a computer comes that already has a mapping (static or pool) he always attributes known IP address and the other does not.

  After the expiry of the lease? Depends on the server. A DHCP server keep the maps even after the expiry of the lease. The simple purpose of this is that if you have a fairly large pool that gets not exhausted you basically assignments to static IP addresses to DHCP clients. Even if a client releases the lease (because the computer is stopped) or the lease expires, he will always keep this information. Next time (for example, you turn on the computer after the weekend) it will always go to the same IP. But again, it is up to the implementation of the server. Other servers follow other policies and do differently.

  Address IP lease request? N ° never. The DHCP server must not assign an IP address that has been rented elsewhere. There is no reliable way to make sure that the DHCP server as other devices is indeed off. If a unit is stopped, it must release the DHCP lease. If it is not the case, the IP address is blocked until the lease expired. The only case that a transfer could occur is if the DHCP server has been reset and lost its DHCP lease table. In this case, the DHCP server does not know before granted leases.

  Supported? All DHCP servers must be able to receive DHCP requests include this option. It is the implementation of the DHCP server if the DHCP option is really accepted or not. Some servers may completely ignore this option.

• Various Questions about wireless access controller

  Help me please with these fundamental questions about the role of the access (AC) wireless controller.

  Assume that the access controller and Access Point are connected via IP:

  -Wireless frames sent to AP to acre; include the original MAC header (on the way to wireless access)?  If Yes, is there a Cisco AC gets to fill the WLAN and LAN it is plugged (which means that it outputs as ethernet frames as if they were issued by Mobile Stations).

  -Is the AC necessarily the default gateway for mobile stations? I guess not. But it is possible the default gateway?

  The Cisco AC can function as a DHCP relay?

  The AP creates a tunnel to the controller. All IP traffic from the AP to the controller will address the AP source and dest IP to the interface of the Manager of the AP on the controller. The wireless client traffic is encapsulated inside this tunnel. When it hits the controller the CAPWAP is removed leaving the customer's original package to be sent to the local network through the controller.

  The controller should not be the default gateway for wireless clients because it is not a router. Think of it as a device that converted into wired wireless traffic.

  Normally, the controller acts as a proxy DHCP. Once the customer has joined a WLAN, the controller sends the DHCP packets to the DHCP server on behalf of clients such as the IP address of assistance normally configured on the router for cable customers. You can also configure the controller to act as a DHCP server for wireless clients.

• Where can I ask a handful of general order questions about Firefox OS as a consumer and get the answers? (a forum or something similar)

  I have about seven questions about Firefox OS. I'm potentially interested in opting for a tablet that works instead of Android or iOS. I couldn't find a place to ask questions like that. Thank you!

  https://support.Mozilla.org/en-us/forums/Firefox-OS-English-Forum

  There is another option.

• About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  About a month ago I posted a question about iMovie and not being able to "share". I solved the problem thanks, so no more emails!

  Hi Michael,

  If you want to stop receiving notifications by electronic mail, in the thread, that you have created, then I suggest that you follow the steps below:

  One time connected to the Apple Support communities, visit your mini profile and select manage subscriptions.

  

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  Select next to see what content you are currently following.  Note that any thread you are responding you subscribe you automatically to this thread.

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  Take care.

• Where and how do I ask questions about Email?

  The Commission opening thingy is complicated, I have trouble finding my way around it.  I don't know where or how questions about email.  Is there an easier way than trawling through all these icons?  Like a list or something - as you get on all other forums on the internet?

  It would be a good starting point: Mac mini

  Or the appropriate under MAC Os and system software section.

  You might also find this useful: find answers and new questions

• Many questions about the HP 50 g

  I just ordered a HP 50 g graphic calculator! I have a few questions about this so hang on tight! What is the USB connector on the calculator? Mini-USB, micro USB, or is it a connector owner, "custom". Then, it would be possible to connect a keyboard to the HP 50 g by using the USB Port? Is there a program that would make this possible? (I doubt it would work if you plug it..) I have a Mini-USB to female USB 2.0 connector. So I could just plug the keyboard right, provided that the port on the calculator is a Mini-USB Port. If this is not so that I could use my female to female USB adaptor to connect the keyboard.

  Thanks for your help,

  Zekelegge

  Hi!, zekelegge:

  Welcome to Forum!

  The only printer I use, 50G calculators, 48GII, 39GS and 17BII +, as well as many former models, such as the 48 s/SX/G/G + / GX, 38 G, 39 G, 42, 41 C/CV/CX and 28 C/S, is the infrared printer HP 82240 b. If you can use the emulator HP50G, on the PC, the simulator of the printer, you can download, since... http://www.HPCalc.org/details.php?id=7386

  The printer... HP 82240 B

  

  The cable series...

  

  The description... http://www.allenwan.com/hpcalcserialcable/

  The original cable...

  

• Question about warranty after exchanges of RAM on Satellite module series

  Hello together,

  I have a question about the warranty. My laptop is 5 months old and now I want to improve it with more RAM. I want to do it myself, and now I'm wondering if the warranty will be getting hurt.
  Thanks in advance for your answers.

  Concerning

  TiG3r

  For new models of laptops the RAM upgrade described in s operating manuals. It is public act and it shows the owner of the notebook how do RAM upgrade only.

  If Toshiba offers something like this he won't have the negative influence of valid warranty.
  Buy a compatible module and RAM upgrade.

  Bye and good luck!

• A few quick questions about the Satellite P300 - 18 M

  Hello

  I am about to order a Satellite P300 - 18 M and have just a few questions about this:

  (Although these may apply for other similar Satellite/Equium P300.)

  Is the touchpad made by / to use the Alps or Synaptics driver?

  It has the Wireless N network card, is the map made by Intel or Realtec?

  And also, someone has experience with face recognition software to connect?

  If so, does it take a lot of time to initalise?

  Thanks in advance,
  Jack

  Hello

  The P300 - 18M belongs to the PSPCCE series.
  It uses the two touchpad drivers. Synaptics & Alps Electric
  There is an Intel 802.11agn minicards WLan installed

  The face recognition is a nice tool but local to be illuminated and you must take your face the right of the post sometimes it of not very easy

  But if you face is recognized correctly that the connection should work properly

  See you soon

• Questions about nb200

  I recently bought a mini nb200 with windows 7 and I have a few questions about it. How can you set up your email, I was willing to put up with Outlook Express, but I don't know if I can. Also, is there a way to get a paper copy of the user manual?

  You can download and install a new e-mail program when you download Windows Live via Microsoft Update. You can select the components of Windows Live, you want to include by checking a box for each you want. I installed all the. Or you can use Outlook, if you have Microsoft Office and you want to install it.

• A few questions about the difference between the Satellite P70, L70, S70

  Hello, I have a lot of questions about the P70, L70, S70 series that come with a 1920 x 1080 panel.

  (1) what are the differences between the L70 and S70 series? With the exception of the RAM and HARD drive capacity, books seem pretty identical.

  (2) P70, L70, S70 doesn't support a 2nd HARD drive or it's just the P70 series that support?

  (3) all the three (P70, L70, S70 series) come with the same TFT panels?

  (4) of the above series, which supports mSata?

  (5) all the model of each series are delivered with support from mSata? For example, it could be that L70 - a - 13 m supports mSata is not the case of the L70-a-146?

  (6) all the foregoing, are delivered with a S - ATA II or III S - ATA interface?

  (7) who is the best of these series listed? I'm trying to understand what makes the big difference of S70 to P70 except for the envelope for example.

  Thank you in advance.

  > (1) what are the differences between the series L70 and S70? With the exception of the RAM and HARD drive capacity, books seem pretty identical.

  What models Sat L70 and S70 do you mean exactly? There are different L70-xxx-xxx and S70 models on the market that supports different hardware specifications.

  (> S70 2) P70, L70, support a 2nd drive HARD or is - it just the series P70 that support?
  As you can see in this [Sam P70 HDD replacement document, | http://aps2.toshiba-tro.de/kb0/CRU3903II0000R01.htm] the P70 series supports the 2nd drive Bay HARD, BUT even if there is a 2nd HARD drive Bay, this does not mean that you can use the 2nd HARD drive. In the case where the 2nd HARD drive Bay are equipped with HARD drive connector, you can use the 2nd HARD drive

  I also found the [Sam L70/S70 HDD replacement | http://aps2.toshiba-tro.de/kb0/CRU3703HG0000R01.htm] the document on the Toshiba page and there I see this 2nd HARD drive Bay is not available

  (> 3) all three (P70, L70, S70 series) come with the same TFT panels?
  See point 1). Different P70, L70, S70 models were equipped with different material parts.

  (> 4) of the series above, which takes in charge mSata?
  As far as I know that some P70 models are equipped with an mSATA SSD of 256 GB.

  (> 5) do all the model of each series are delivered with support mSata? For example, it could be that L70 - a - 13 m supports mSata is not the case of the L70-a-146?
  See point 4) not all models supports the same hardware specifications

  (> 6) all of the above, come with a S - ATA II or III S - ATA interface?
  I don t think that SATA III is supported. I guess it would be SATA II

  (> 7) which is the best of these series listed? I'm trying to understand what makes the big difference of S70 to P70 except for the envelope for example.
  Not easy to answer because there are too many models released in Europea.
  And not all models are available in each country. So I guess you will have to look for the models that have been released in your country.

• Satellite L650-11R - a few questions about this

  Hello there :-)

  I have a few questions about my new L650.

  I've never had Toshiba notebook before so I apologize if some of these "quirks" are actually quite normal on this laptop. I really want to hear the views of other users L650.

  1)
  First of all, by the time I turned it on I saw gradient thin (1-2 mm) along the right edge of the screen that goes from the bottom up. Maybe "degraded" isn't the right word, but it seems that since two or three pixels are kind of discoloration or lose brightness/sharpness to the edge along the straight bezel. It is not really that visible, looks like the colors are desaturated a bit here or brightness is a bit lacking. He can be seen everywhere (bios or no color in Windows, but better in the lighter background).
  The left side (or other) seems ok, all this along the right edge is somewhat suspicious. If one can compare? I don't know if it's something to worry about or is just supposed to be like that.

  2)
  The other thing I noticed heating of the processor (Intel i3 330M) and GPU (ATi Mobility Radeon 5650). It's pretty hot here right now (I would say that the temperature is around 28 degrees Celsius when using cell phones). He is sitting on the hard surface (table) and nothing is blocking the vents.
  However, at "rest" (surf the web & regular light stuff), average CPU temp hovers around 58 ° C. It usually goes from 45 to 62 in just a few minutes after starting, and then I can hear and see (Toshiba PC Health Monitor) evacuate the kicks in. Temp goes back to 50 +, event stops and then the temp rises to 60 + until the vent is used again.
  During load full (Prime95 or some games), CPU is going all the way up to 75 degrees (the highest being 77). Fan runs at 75 to 77% during this time, never go faster.

  GPU idling is usually around 5 degrees above temp CPU (62-65). During full load (for example. Benchmark of Far Cry 2), I see a lot of stuttering with the latest drivers Catalyst and DX10 (not sure if the stuttering has something to do with heat), otherwise it is ok (no artifacts or anything like that). Temp of GPU during the loading goes up to 74-75, fan speed is locked at 30%, the frequency of the heart 5650 is 450 MHz. left side of the laptop (vent and below) is pretty hot, while the keyboard is warm (or slightly warmer who who).

  These time seems correct and safe in the long term? I'd rather events works all the time (they aren't really very strong) and keeping time less than 50, but there are just wishful pious bios control events and I can't control not the bios. :-)

  3)
  This is just General related products. :-)
  Official specifications of Toshiba L650 say ATi 5650 (between other low range GPU), but I saw a few specifications calling for there 5730 (same model 11R). Is there really a Satellite L650 with ATi 5730 GPU models?

  Sorry for the long post, I tried to include the best possible description that I could do. :-)

  Thank you in advance.

  Thanks for the additional info!