Changing the subnet mask

we're connecting 2 offices via the ethernet port on a 1710 router on the far end and the fastethernet port on our end.
in the original config we planned on using a .248 mask and life is good...the circuit is up and running.
now we have been told that we need to change the mask to .240 to acommidate a few more IPs.
it should be fairly easy/painless to change the mask? right?
Am I missing something?
Any thoughts?
thanks, gary

Hi Gary
Provided the .240 covers the addressing used in the .248, these addresses haven't been used anywhere else and the .240 falls on a natural subnet range you should be absolutely fine to do this.
HTH
Jon

Similar Messages

The subnet mask on the Extreme isn't the same as on the Express.

Dear Group,
I have my Extreme configured to do PPPoE and DHCP and my DSL modem is setup as bridged. Everything is finally working well. I have an Express extending the Extreme in a WDS.
When I look at the PPPoE tab in the Internet tab of the Extreme in AirPort Utility it shows a subnet mask of 255.255.255.255, but the Internet tab of the Express shows 255.255.255.0.
I don't have any problems at all and wireless clients are connected to the Extreme and the Express.
Is the Extreme's subnet mask part of my DSL connection and therefore a different subnet mask?
Not sure, but I'd like to make sure that I don't have something setup incorrectly.
Thanks,
Frank

This really isn't an issue as long as the AirPort Extreme base station (AEBS) is providing a working Internet connection. Since the AEBS is using PPPoE to connect to your ISP I'm not sure that the subnet mask is even used.
The subnet value of 255.255.255.0 used by the AirPort Express (AX) is typical.

Can i change the subnet used by hotspot?

Since upgrading to iOS 7, when I use the hotspot functionality of my iPhone, my PC shuts down every time I join the hotspot network. The subnet is 172.20.10.x. My PC seems to have issue with certain 172.x.x.x subnets. This did not happen prior to the upgrade to iOS 7.
Is there a way to change the subnet that "hotspot" uses?

If it is IIOP listener port of bundled AS then it can be changed either by direct editing of "port" attribute of corresponding "iiop-listener" tag in the server's domain.xml file or through Admin Console:
- click "View Admin Console" on deployment server node
- enter admin username/password
- in the tree goto Configuration->ORB->IIOP Listeners

How do I get the subnet mask

How do I get the subnet mask for each IP address my host supports in Java? I need to get this so I can send a local broadcast on a specific subnet.
Thanks,
Doug Grover

Actually on windows you are probably going to beusing
ipconfig."ipconfig" will give you the values for each network
interface on your machine bound to the TCP/IP
protocol.
"route print" will print the windows routing table for
the network the machine is on.
Quoted from the Microsoft web site, "The routing table
is built automatically, based on the current TCP/IP
configuration of your computer. Each route occupies a
single line in the displayed table. The routing table
is searched by your computer for an entry that is the
most specific match to the destination IP address."
Yes I know what it does.
In most cases when someone wants this information they use ipconfig.
Although your suggestion does work on older boxes as well. But the result is somewhat less evident.

Changing the format mask of a numberic field in a report

Hi,
I'm fethcing some numeric values from the DB and displaying them in the report. I'd like to use comma as the decimal separator but I can't get it to work. I'm very lost with all the NLS settings. I've tried using the format mask ad '9999990D00' but it still displays as dot as the decimal separator. What do I have to do in order to use comma as the decimal separator?
Thanks

Try putting
SRW.DO_SQL('alter session set NLS_NUMERIC_CHARACTERS='', ''');
in the Before Report Trigger.
The setting might be reused for the next report if Reports is set to reuse the database connection.
To avoid this, I guess you change it back to default in the After Report Trigger.
Hope this helps!
Morten

Changing the default masks

When you select "edit mask" when configuring the collection data form you have 3 options which are for time, currency and phone. Can these be changed or added to?
Thanks.
Scott Windmiller
University of Maryland
Department of Psychiatry
Information Systems

Scott,
It appears that in the past few days you have not received a response to your
posting. That concerns us, and has triggered this automated reply.
Has your problem been resolved? If not, you might try one of the following options:
- Visit http://support.novell.com and search the knowledgebase and/or check all
the other self support options and support programs available.
- You could also try posting your message again. Make sure it is posted in the
correct newsgroup. (http://forums.novell.com)
Be sure to read the forum FAQ about what to expect in the way of responses:
http://forums.novell.com/faq.php
If this is a reply to a duplicate posting, please ignore and accept our apologies
and rest assured we will issue a stern reprimand to our posting bot.
Good luck!
Your Novell Product Support Forums Team
http://forums.novell.com/

How do I change the layer mask thumbnail to be a thumbnail of the image itself ?

Hello,
I am in Photoshop CS5 in Windows, and I have been using Photoshop for sometime now. I am not sure what I did, but for the last few days, in my Layers Pallette, the thumbnails that show up look different.
I have attached a small screenshot from my photoshop below. Here in Layer 1, the thumbnail in the left (brush ) used to be that of the image open , and the thumbnail in the right used to be the grayscale indication of pixels that have been selected. Any idea how to revert it back ?

Hi slaveofphoton,
Go to the Layers Panel Options and choose a thumbnail size other than none.

Presentationser won't start after subnet-mask change

After changing the subnet mask (in order to be able to connect to the server remotely), the 'Oracle BI Presentation Server' service (sawsvc) will not start anymore.
Eventlog shows: The Oracle BI Presentation Server service terminated with service-specific error 4294967295 (0xFFFFFFFF).
Can anyone help me out, what I have to alter, in order to make things work again?
After updating the host file I am able to connect to the database, so sqlplus and OBIEE administrator work. It is analytics that will not run anymore because of the service that will not start.
thank you for any help you can give,
Jeroen
Edited by: user10633241 on Jan 27, 2009 4:14 PM

Thanks for letting the community know.
The behavior described is usually related to issues with the startup files used to boot Windows. However, this could be one of the outliers.
HP units are usually pretty good about detecting incompatible memory and won't get as far as it is getting.
In the mean time, it certainly wouldn't hurt to try the steps listed while waiting for them to arrive.
↙-----------How do I give Kudos?| How do I mark a post as Solved? ----------------↓

Changing the IP Address manually for Laserjet 2100TN

Hi there--
We recently updated all the IP addresses for our LAN to facilitate the set-up of a VPN. Due to problems arising from DHCP address assignment in the past, we maintain addresses manually on the network. Unfortunately this has led to a problem where our old 2100TN is now unreachable on the ethernet network and we are unable to change its IP address; ordinarily this would not be an issue as the Macintosh computers on the network can still find it via AppleTalk, but the PCs are unable to locate it. I tried running HP's network set-up wizard from a PC connected to the network the printer's on and was unable to locate it even when I searched for the printer's hardware address; this was also the case when I connected directly to the printer with an ethernet cable.
Is there any other way to reconfigure the printer's network settings without potentially disrupting our entire network again? Help would be greatly appreciated.

Have you tried changing the printer's IP address manually from one of the Macs that can see it?
I include a copy of a reply on a related subject, from the person on this forum whose user name is IronBadger. Some of it may be helpful. Thank him if it helps.
I am a Mac consultant in Chicago, familiar with the 2100TN.
Michael B. Kaye
The Mac Man Chicag
[email protected]
IronBadger's helpful and informed post begins here:
Since Apple removed AppleTalk from 10.6 it may be slightly more complicated to connect your 5100. But it is possible.
A lot depends on what your internet connection is. Do you use wired or wireless ethernet to connect to the internet? If you are using a wired connection your 5100 will need an IP address that matches your Macintosh. This will involve using the printers control panel to manually assign a TCP/IP address that is in the same range as your Macintosh. Wireless instructions below.
If the Mac has an IP address of 169.254.12.54 and subnet mask as 255.255.0.0, change the IP of the printer to 169.254.12.55, change the subnet mask to 255.255.0.0 and change the Gateway to match what is shown on t he Mac. If your Macintosh gets an IP address directly from your ISP (via DHCP) you may be required to obtain an additional address for the printer.
If you are using wireless (airport) to connect to the internet and just have the printer connected to the Macintosh with wired ethernet the information below should help you get connected.
I have copied a document below that discusses putting the printer on the same network as the Macintosh.
These are the instructions for manually configuring the IP Address on a Macintosh to match an AutoIP generated IP address on a printer.
When some HP LaserJet printers are connected to a network but there is not a DHCP or BOOTP server available it will generate an IP address in the AutoIP range of 169.254.x.x where the last two numbers are derived from the printer's MAC address.
To verify the printer's IP address print a configuration page.
If the printer configuration shows the IP in the Range of 169.254.X.X then the printer has typically self configured an IP address.
If the Macintosh is either not connected to the internet or is not using Built-in Ethernet for internet connectivity the IP address on the Macintosh can be configured to connect to the printer on a local network.
This can also be used to temporarily connect to a printer with no control panel and change its IP address.
Check the IP address on one of the computers on the local network:
1. Click on the Apple menu.
2. Select System Preferences.
3. Select the Network System Preference.
4. Click the TCP/IP tab, click the Configure IPv4 dropdown. and select “Manually.”
5. Change the IP address as mentioned in the following example.
• If the printer has an IP address of 169.254.12.54 and subnet mask as 255.255.0.0, change the IP of the computer to 169.254.12.55, change the subnet mask to 255.255.0.0 and change the Gateway to 0.0.0.0.
Connectivity to the printer can be confirmed by:
Opening the embedded web server using a browser by typing http://<ip address of printer>.
Setting up a print queue for the printer using Print & Fax System Preference.
Although I am an HP employee, I am speaking for myself and not for HP.
end IronBadger post

How to configure the eth1 port of NIcRIO 9024 to another IP address and subnet mask

Hi ,
I am using cRIO 9024 and am planning to configure it to be an MMS server that interacts with a client which is in another network with different IP and subnetmask. I want to run the server VIs from the host computer via the eth0 port and want to communicate the MMS messages through the eth1 port. the eth0 port is configured as a static IP as shown in the screenshot attached and would like to assign a separate IP and subnet mask to the other port . But when I try to save the configuration I get the error "Could not save your changes tot he target.The subnet mask for eth1 is invalid" .
I have already directly cross connected the Crio and have disabled the firewalls and still am not able to configure it.
1) is it possible to configure the ethernet ports to have separate IPs corresponding to different networks and thus the subnet masks?
2) If its possible then what is the mistake i am doing while configuring it ?
I would be extremaly grateful to have a reply on this as its pretty desperate to spend a lot of time just to set up the IP configurations..!!!!!
Regards
Abhinav

Dear Abhinav,
I'm sorry but what you are tryining to do is not suported by the Second Ethrnet Port on any cRIO and so you getting this error meeage.
Here a abstract out ouf the KnowledgeBase How do I Configure the Dual Ethernet Ports on Real-Time Controllers?:
Ethernet port 2 is currently not supported to communicate outside its own subnet. There is no capability of configuring the Default Gateway for Ethernet port 2 and therefore cannot connect to a large isolated intranet. However, there appears to be a common misconception that this port can only be used for communication between NI products: this is not the case, though any communication through the secondary port must be within the same subnet.
Kind Regards,
SG3 | Applications Engineering | National Instruments | NIG |

Why would Airport change subnet mask?

Hello all.. kinda new to this stuff and was looking around for an answer, but couldn't find my exact situation. So, forgive me if I ask some stupid questions... Ok, I have MacBook Pro, and recently had to do a reset on my modem/router, and now this particular computer won't connect wirelessly. I also have a macbook air, and connects fine wirelessly. It seems I have narrowed it down to the subnet mask... maybe, but not completely sure. Just to be clear, I don't have the Airport express, I am just simply talking about the airport function built in to connect to a wireless network (not sure if it's called something different, or is the one on the actual computer just called airport?). So, going into the airport utility does nothing for me. It can't find any wireless devices. And everything I have read has been talking about going into that program and changing things. Anyways, I tried connecting automatically (using DHCP) and manually, but nothing helps. My macbook air gets a subnet mask of 255.255.255.0, while it has now started giving my macbook pro a 255.255.0.0. And I'm assuming my router is still configured for 255.255.255.0, but now my computer isn't.. How is that possible? Just wondering if anyone knew why this was happening and/or how I can fix it. Like I said, I'm not a genius with this stuff, but any help would be appreciated. Thanks for your help! And if I have missed any important information, let me know..

Unless you have an Apple-brand Wi-Fi base station, AirPort Utility is of no use to you.
It might help to reset the connection settings on your MacBook Pro using these steps one at a time until the problem is resolved, recognizing that, depending on your problem, not all of these steps will make sense:
1) Use the AirPort menu bar item to turn AirPort off, then on again.
2) Try to select your Wi-Fi network from the AirPort menu.
3) In the Network panel of System Preferences delete the AirPort item from the left column, then add it back.
4) In the same panel as (3), define a new location and see if you can make that work.
5) In the same panel, select the AirPort connection item, click the "Advanced" button, select the "TCP/IP" tab, then click "Renew DHCP Lease". Note that the fix this step implements may be temporary.
6) In the folder /Library/Preferences ( _not_ <yourhomefolder>/Library/Preferences), move the folder SystemConfiguration onto the Desktop, then restart your computer. See if you can now make your AirPort connection work.
These steps may not help, but they'll only take a couple of minutes to try. Before you try these, if you have any special network settings on your Mac for things like DSL credentials, note all your network settings, because the latter steps will destroy them. If you got all the way to the last step, if things don't work any worse than before, you can trash the saved SystemConfiguration folder.

Wlc 5508 webauth subnet mask change issue

Recenly l changed the network subnet for a particular wlc interface and scope and also an upstream router and for some reason it would only allow me to use a /24 Host mask as my plan was to go to a /22 mask to allow for over 1000 hosts within this scope.
The Upstream Router which is a ( RV042 ) had the following original config :
     192.168.1.1
     255.255.255.0
I have noticed this device will not let me change the mask from a /24 to a /22 as you can only change from a pre-defined list of masks and you cannot manually add any either..
New Config
     10.10.0.10
     255.255.255.0
WLC 5508 Controller Interface
     Original Config
      192.168.1.25
     255.255.255.0
     192.168.1.1
     New Config
     10.10.0.25
     255.255.252.0
     Scope
     Range : 10.10.1.10 - 10.10.3.254
     Mask : 255.255.252.0
     Network : 10.0.0.0
     Router : 10.10.0.10
When l reconfigure to this addressing the wireless clients connect and get the new dhcp scope details but following this the webauth screen doesn't appear not allowing them to connect meaning there is no routing of traffic / internet access.
If l modify the above interface and scope masks back to a /24 - 255.255.255.0 the the wireless clients connect and webauth appears to prompt them to accept the terms and conditions and connect thus giving them internet access.
It looks like an issue with the mask ? The main reason l am trying to change the subnet addressing is because the standard /24 mask is not providing enough dhcp addresses and we have had times were the scope has been exhausted due to the public connecting and disconnecting as the lease perod of 2 hours holds onto the address before expiring meaning there is not enough available addresses for people to connect.
I would of thought that the upstream router ( RV042 ) even though it is only a /24 mask would still route the traffic coming from a WLC Controller interface with a /22 mask ?
Hopefully someone can suggest a solution ?
Thanks Simon

Hey Scott just getting back to this issue..   If for instance l can modify the wlc interface and Scope to have a /22 mask ( 1022 Hosts ) and my upstream Router ( Cisco RV042 ) can only provide a /24 or higher mask then does that mean l am still limited to a range of 254 hosts ( /24 Mask ) ? Would this mean l need to look into replacing my upstream Cisco RV042 VPN Router ?

Ipad is showing connected to wifi but it is saying its not connected to internet. I have reset all settings, tried to change IP address and subnet mask and nothing is working.

My ipad mini 3 is not showing that it is connected to the wifi, but it is saying it is not connected to the internet. I have reset network settings and then reset all settings and it has not worked. I have tried to change it to static and change the IP address and the subnet mask and that is not working either. I have also tried to use the wifi in different places and that doesn't work either. Please help!!!! iPad is useless without the internet.

1. Set router back to Auto DHCP.
2. Turn off router for 30 seconds and on again.
3. Re-boot iPad.

Assigning non-standard subnet mask to local IP address on WRT54GX

I need to configure my WRT54GX V1 as an access point. I know how to accomplish this, but our corporate network uses a subnet mask of 255.255.252.0 How can I assign this net mask? The only options are contained in a drop-down menu and what I need is not there. Is there a different way to assign the subnet mask rather than using the menues?

It is a known limitation of Linksys wireless routers that they only support LAN subnets up to 255.255.255.0. I guess the assumption was that the router only runs LANs for up to 253 LAN devices. The plain access point setup (i.e. uplink through LAN-LAN connection) was never properly considered an option although it is documented in the Linksys easy answers.
Anyway, to set up the WRT as access point the LAN IP address of the WRT and the subnet mask is not important for the wireless connectivity into the LAN. The LAN IP address and subnet mask is only relevant to access the web interface of the WRT to make configuration changes. You have to make sure that the DHCP server on the WRT is turned off and that a LAN port of the WRT is wired to your existing LAN.
For the LAN IP address setup you have three options:
1. Use an available IP address inside your LAN and use subnet mask 255.255.255.0, e.g. if your LAN uses 10.0.0.0/255.255.252.0, assign the WRT an IP address of 10.0.3.200 with subnet mask 255.255.255.0. Of course, in that case you are only able to access the web interface of the WRT http://10.0.3.200/ from a computer in 10.0.3.* because that's the IP subnet which the WRT thinks is connected to its LAN ports. You cannot use a computer with IP address 10.0.{0,1,2}.* because the WRT does not know how to route these IP addresses. If your computer has an IP address outside the configured WRT LAN subnet you must temporarily change the IP address of the computer.
2. If you assign a LAN IP address and subnet mask to your WRT which includes a network router you may be able to get full connectivity by setting up static routes in the WRT. For instance, if you assign 10.0.3.200/255.255.255.0 to your WRT and your main LAN router sits at 10.0.3.254/255.255.252.0 you may be able to set up static routes for destinations 10.0.0.0/255.255.254.0 and 10.0.2.0/255.255.255.0 (or if it works even simply destination 10.0.0.0/255.255.252.0) to gateway IP address 10.0.3.254 on the LAN interface. Traffic from the computer to the router should go directly while the responses from the router to the computer go through the main router. I think this should work although I am not 100% sure.
3. Use any IP address outside your LAN, e.g. the default 192.168.1.1/255.255.255.0. Again, you must temporarily set up a static IP address on your computer to gain access to the web interface. But even with a LAN IP address outside your LAN the WRT will still bridge wireless clients into the LAN as it is supposed to do.

Osx server 2.2.1 VPN subnet mask 255.255.255.255

Why is the subnet mask 255.255.255.255 and how can I change that?

Read http://en.wikipedia.org/wiki/Subnetwork
Allan

Changing the subnet mask

Similar Messages

Maybe you are looking for