subnet mask

Similar Questions

• I can't add/subnet mask 31 255.255.255.254 ISP WAN > static IP setting in VPN Firewall SRX5308

  Hello

  I can't add/subnet mask 31 255.255.255.254 ISP WAN > static IP setting in VPN Firewall SRX5308. When I try to apply it, I get the popup error message like "invalid IP subnet mask. Please enter 0/128/192/224/240/248/252 for octet 4 ". I try to add provider NTU fiber optic internet service in one of the 4 WAN settings. The vendor gave me a 31 block IP and the subnet as 255.255.255.254 mask. It is a limitation in this firewall? I have to ask the provider to give me a 30 block the IP instead? With 30 block IP subnet mask will be 255.255.255.252 who is authorized by this firewall setting. I tried this on another (SnapGear SG560) firewall and it works without any problem. See the screenshots below. Can someone please?

  

  

  concerning

  Ridwan

  / 31 would be used in specific scenarios where you * really * need to keep the address space and on links only point to point. To be honest I've never met anyone, or any ISP that uses it. It works on point to point, because, well, there no need to broadcast address because there are only two devices on the link (one on each side of the cable)... IP address ranges would be;. 0-. 1,.2-. 3, etc.

  Most (if not all) Netgear devices will prevent you from setting 31, but you will probably be able to use without problem in all 30 cases, according to the setup of the ISP I do not think that it would cause you problems really. But if you can, I would certainly ask a 30 instead.

• Default subnet mask

  Now I can easily connect USRPs to my PC. But I wonder if I move the USRPs into another room and assign a static Ip address in the pool of the Ministry of the IPs, I can still communicate with them via Ethernet?
  It depends on the device's default subnet mask. Right now, I guess it's 255.255.x.x. But if I assign them an IP address from the pool of my Department of IP addresses, then the address/subnet mask should also be updated. Is this possible?

  Hello cindy,.

  The simple answer to your question is Yes, you can connect to your USRP via Ethernet.  There is more information about this procedure in the Manual of the product for each device.  Take a look at page 6.  The default subnet can be different depending on your device, but the value by defect OR 29erxx series devices to 255.255.255.0.  "" "You can change the IP address of the device using the USRP Configuration Utility, available at the beginning" all programs "National Instruments" NOR-USRP ' Configuration of NOR-USRP

  Utility.  You will first need to connect directly to the device, apply to an IP address that is on the same subnet as your host computer, and then deploy the unit where you need it.

  I don't think there is a way to manually change the subnet and the gateway.  You must use the machine on the same subnet as your host, and the default gateway will be automatically assigned.

  Also, I wanted to point out that, in my experience, connect to a USRP device through a network can affect performance.  The latency introduced by the Ethernet communication decreases the throughput and responsiveness of the device, so depending on your use case, I would not recommend for Ethernet connections unless you have no other options.

• Target subnet mask and the gateway in different subnets and clock error

  Hi all:

  Need help. I have a standalone PC operating a direct VI on a CFP with a crossover ethernet cable (developed on my laptop, compiled and installed as a standalone on the PC). When the VI runs on standalone PC version, everything works (click the button, analyzers are read), but the time being pulled from the CFP is wrong, and infact resets to December 1969, a default value. I am error checking, and no error is marked with the CFP, slaughter programmes. When I go to the MAX function, the time playing of the CFP is the funky time. Looking at the IP addresses, I generally use a very standard protocol (192.168.000.001 for the PC, 192.168.000.002 for the CFP currently running on the subnet for the pc and the PSC 255.255.255.000). However, when I apply this Protocol on the CFP through max, it gives the error "the subnet mask you entered puts the target and the entry door to different subnets." I am not versed enough well understand this, and what I read in 2 postings here, I tried to harmonize the IP numbers and the subnet, and they do not seem to help. When I put intentionally in false numbers IP or subnet default time synchronization time correct (pc), but functions block (as expected). It is certainly not an issue of PC zone.

  Anyone can offer any guidance?

  Currently runnig LV 8.2 with drivers of 2009. PSC 1804 with MAX 4.6.

  I appreciate all help.

  Best regards;

  GIS.

  OK, I solved it. FYI: for those who are not aware of the IP: IP of the host and default gateway server to the same value. My work for the host computer are 192.168.000.001 and subnet masks can stay 255.255.255.000. The CFP has been set to 198.162.000.002 with a 90.00.00.03 DNS. Time server has been blocked by the Norton 2009 Firewall (even with an exception) and thus the cruxt of this issue together. I had to uninstall completely from this "software". I hope this helps.

• Can someone give an example of how to configure the subnet mask associated with the network and host of an IP address part?

  Can someone give an example of how to configure the subnet mask associated with the network and host of an IP address part?

  Hi stuckfree,

  The question you posted would be more appropriate on the TechNet Forums. I would recommend posting your request here.

  http://social.technet.Microsoft.com/forums/en/itproxpsp/threads

• WAG120N subnet mask problem

  Hello

  I have router WAG120N and I want to change the ip address of the local 10.1.X.Y computer and subnet mask of 255.255.248.0

  I changed the ip address but I couldn't change the subnet mask.

  Please help me...

  You can not. Linksys devices are mainstream devices and support only LAN 255.255.255.0 subnet or smaller. They consider that 254 IP addresses is sufficient for a consumer LAN.

• Case 'not the same subnet mask' - WRT54GL

  Hello

  I recently bought a WRT54GL router and tried to feed it with data from my ISP.

  I entered these data to my Windows system as well as my older router and it worked fine.

  These are:

  IP: 213.211.57.xx

  Subnet mask: 255.255.255.0

  Gateway: 213.211.56.1

  However, I get the error "not the same subnet mask" described here .

  If I run "ipconfig/all" to the machine which can be used to connect to the net, I don't get any additional useful info that I described here, (he is also in Czech :-)

  And there is no obvious conclusion in this forum thread.

  Any suggestions?

  Kind regards

  Matej

  OK, so I've solved this by changing the bridge and it works now.

  Interesting that windows was able to deal with him, but...

• I get the IP address, subnet mask, gateway, but I am not able to go online.

  I use Windows vista home 32-bit version. I'm trying to connect my laptop to the home modem. I get IP address, subnet mask and default gateway, but still I am not able to go online. I had checked most of the thing as reset modem, reset my network card. When I run his shows an error command ipconfig/release ' year error occurred while releasing interface pseudo-interface 1.» The system cannot find the specified file. "I had also run a command to reset my TCP/IP settings. While other computers and a laptop computer connected to the modem even could go online, as well as while I connect my portable roommate same cable of his work. To solve this problem I had also to restore my laptop. When I see the advance of LAN connection option, it shows that "this device works correctly. In the center of the network share, it shows not identified (public network), access Local only. 

  Hello

  What is the IP address that you have read?

  If it is 169.xxx.xx.xx then it is not an address valid IP connetion.

  Check the network configuration of your computer.

  Maybe this can help.

  Check the Device Manager for the entry of valid card of the wire.

  http://www.ezlan.NET/Win7/net_dm.jpg

  If there is no valid entry, remove any entry from fake and re - install the drivers for the wireless card.

  Check network connections to make sure that you have a Local Area Connection icon/entry, and that the properties of the icon (right-click on the icon) are correctly configured with the TCP/IPv4 protocol in the properties of network connections.

  http://www.ezlan.NET/Win7/net_connection_tcp.jpg

  Connect you to the menu of the router from a work computer and make sure DHCP is on, and it is configured to assign IPs which can cover the number of computers that are connected (a bit more will be even better).

  Turn off the computer and the router, reset the router and the computer.

  Right-click on the wireless network connection card, select status, details and see if she got an IP address and the rest of the settings.

  If every thing look good and he doesn't still doesn't work do not try to reset the Winsock and TCP/IP stack.

  Type Cmd in the search text box.

  Press Ctrl-Shift-Enter keyboard shortcut to run a command as administrator prompt.  Allow the elevation.

  Type netsh winsock reset at the command prompt and press the Enter key.

  Do the same process to refresh the TCP/IP, just replace the command typed with.

  netsh int ip reset press Enter

  Restart the computer.
  

  Jack MVP-networking. EZLAN.NET

• To change default Internet connection sharing IP address range and subnet mask

  Hello

  When the ICS (ICS) is enabled on a NETWORK adapter that is connected to the direct Internet line, the second NETWORK card automatically gets the 192.168.137.1 IP address and subnet mask 255.255.255.0. As the first IP address in the address range is located on the second NIC in the computer, the other client computers receive the other IPs in the same range, for example 192.168.137.2, 192.168.137.3 and so on.

  In my case, I already have the static IP network using Network 10.0.0.0/8, I want to change default IP of 192.168.137.1/24 to 10.0.0.1/8. I managed to change the IP in Regedit - HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\SharedAcces - parameters - ScopeAddress / StandaloneDHCPAddress

  that works, but default IP 10.0.0.1 has the subnet mask 255.255.255.0, how to change the subnet mask of 255.0.0.0.

  Help, please...

  Hello

  Thanks for posting your question on the Microsoft Forum.

  I suggest you to ask your question in the TechNet forums.

  https://social.technet.Microsoft.com/forums/Windows/en-us/home?Forum=w7itpronetworking&filter=AllTypes&sort=lastpostdesc

  TechNet is watched by other computing professionals who would be more likely to help you.

  I hope this helps.

  __________________

  Thank you best regards &,.

  Isha Soni

• On (SPA400, SPA8000, PAP2T) subnet mask

  I intend to buy several Linksys products: SPA400, SPA8000, PAP2T.

  In the past, I had a problem with the restriction in the netmask on the other Linksys WRT54GR product (I can't put the mask of 255.255.0.0 subnet, but only of 255.255.255.0).

  Has anyone used / know SPA400, SPA8000, PAP2T... are they allow to define the subnet mask 255.255.0.0?

  Hi vzhuravlev,

  I'm not aware of any policy to restrict netmasks in our products.

  I tested the products for you. I opened two CDETS against the SPA2102 and the SPA3102. They accept the 8 and 16 netmasks, but does not issue traffic if any other than a 24 mask is applied.

  Device	/8	/16	/24
  SPA400	None	Yes	Yes
  SPA2102	CSCtb99007	CSCtb99007	Yes
  SPA3102	CSCtb99021	CSCtb99021	Yes
  SPA8000	Yes	Yes	Yes
  SPA8800	Yes	Yes	Yes
  SPA9000	Yes	Yes	Yes
  PAP2T	Yes	Yes	Yes

  Kind regards

  Patrick

  ----------

• ACL subnet mask

  I read an article and excerptted a section as follows:

  "access-list 10 permit 192.168.3.0 0.0.0.255.

  This list allows the traffic of all addresses in the range 192.168.3.0 to 192.168.3.255

  You can see how the last entry looks to a subnet mask, but with the Cisco ACL, they use reverse subnet masks. ..."

  The above statement is correct? If so, that the subnet mask means if I put it in:

  access-list 10 permit 192.168.3.0 255.255.255.0?

  Thank you for helping.

  Scott

  192.168.1.0 and 192.168.2.0 always refer to the subnet itself and it is not used by any host. In addition, 192.168.1.255 and 192.168.2.255 always refer to broadcast to the subnet, and it is not used by any host.

  That's why I dit.1-.254 only. However, please don't be surprised if voir.0 is used in a network as it is possible, but not very common.

• ASA 31 subnet mask

  We know the reasoning behind not allowing the ASA to accept the 31 range is configured on the interface?

  Hey guys, in fact by Rajesh has a valid request. 31 of subnet masks using is something that has been taken in charge on routers for awhile and is an excellent technique and valid to keep IP addresses for the links point to point. For more information, see this link:

  http://packetlife.net/blog/2008/Jun/18/using-31-bit-subnets-on-point-point-links/

  Unfortunately, this is not a feature that is currently supported on ASAs. Maybe this will change in the future, but from the last code/31 masks are considered invalid.

  Thank you for evaluating useful messages!

• 6248 FI console Configuration, incorrect subnet mask

  After clear console FI 6248 configuration and Setup...

  I didn't enter the subnet mask... No idea what went wrong?

  Enter the configuration method. (console/gui)? Console
  Usage: grep [OPTION]... MODEL [FILE]...
  Try "grep - help ' for more information.
  Usage: grep [OPTION]... MODEL [FILE]...
  Try "grep - help ' for more information.

  Enter the installation mode; the program installation newly or restore from a backup. (configuration/restoration)? Setup

  You have chosen to install a new interconnection fabric. Continue? (y/n): y

  Apply the password? (y/n) [y]: n

  Enter the password "admin":
  Confirm the password "admin":

  Is - this fabric of doing interconnection in a group (select 'no' for autonomous)? (yes/no) [n] :

  Enter the name of the system: FI

  Address IP Mgmt0 physical switch: 192.168.0.1

  Physical switch Mgmt0 IPv4 subnet mask: 255.255.255.0
  Incorrect subnet mask. IPv4 Mgmt0 physical switch subnet mask: form invalid IPv4. Must be of the form 'X.X.X.X', where each
  Letter match a decimal number between 0 and 255.
  IPv4 Mgmt0 physical switch subnet mask:
  IPv4 Mgmt0 physical switch subnet mask: 255.0.0.0
  Incorrect subnet mask. IPv4 Mgmt0 physical switch subnet mask: form invalid IPv4. Must be of the form 'X.X.X.X', where each
  Letter match a decimal number between 0 and 255.
  Physical switch Mgmt0 IPv4 subnet mask: 255.255.255.0
  Incorrect subnet mask. IPv4 Mgmt0 physical switch subnet mask: form invalid IPv4. Must be of the form 'X.X.X.X', where each
  Letter match a decimal number between 0 and 255.
  IPv4 Mgmt0 physical switch subnet mask:
  IPv4 Mgmt0 physical switch subnet mask: 255.255.0.0
  Incorrect subnet mask. IPv4 Mgmt0 physical switch subnet mask: form invalid IPv4. Must be of the form 'X.X.X.X', where each
  Letter match a decimal number between 0 and 255.

  http://jeffsaidso.com/2013/01/when-disaster-strikes/

  might be useful as well; just for next time :-)

• Internet subnet mask is invalid - RVS4000 - error on the wan configuration

  Hi, I am trying to configure my RVS4000 to have access to the internet and get this error.

  I have my DSL ISP (585v7 - latest firmware bethere.co.uk) modem set to bridge mode and the internet connection is up (under the lights).

  I then plugged my RVS4000 him and through the browser interface management I try to configure my static IP using my allocated (and proven - I use them now on a router netgear & modem) Details.

  I'm going to 'wan configuration' and choose 'Type of 'static IP' Internet connection' and then enter my known IP, subnet mask, gateway by default and DNS details and as soon as I select 'save' I get the error "Internet subnet is invalid. (Please enter again". To avoid a problem with browser field validation, I tried this in IE and Safari.

  Can someone point me in the right direction please? It seems such a simple thing but I can't make it work / accept the correct values.

  Thank you!

  

  Post edited by: stu_malt1

  Well, I finally got your TIFF files, and noticed something really weird...

  You have your subnet mask shown in the screenshot for the RVS4000 as 225.225.240.0.

  This is an incorrect subnet mask. Did you mean to put something in the direction of 255.255.240.0?

• Change IP Range Expansion but only the subnet mask

  Hello

  Subnet mask change

  My question is similar to the above thread, but I don't have to change the IP addresses or gateways only the subnet mask static VM hosts ESXi and vCenter servers.

  I'm leaving 255.255.255.0 255.255.252.0.

  My 5.1 ESXi hosts that necessary after changing the subnet mask?

  Have I missed something that someone may have lived or something that I can't do?

  1. Stop all VMS that get their by the assigned DHCP IP address.
  2. Change the subnet on all no VMware Shared Server VM management mask (for example: Business Suite servers as mail, accounting and other servers) and stop them.
  3. Change the Standard switch environment (move to vDS is another project) networks, including the subnet mask 'network management '. (otherwise I should change through DCUI?)
  4. Change the subnet vCenter camera mast and restart.
  5. Static power-up DHCP and VMs

  Thank you

  The f

  Hi Jeff,

  a restart should not be necessary. Just change the subnet using c# client, the Web Client or the DCUI mask. It is possible to use a PowerCLI script to make the change. It goes the same for the VCSA. I don't think that a reboot is necessary.