Fast switching between dynamic and static IP for PLC programming?

Binaural · Oct 9, 2005

Hello all,

When I am working in the office I am often switching between a static IP (192.168.127.whatever, for example) for programming PLCs and HMIs over Ethernet, then switching back to a dynamic IP so I can get my email on the office network. I might switch 5-10 times a day if I am getting a lot of email, and it takes an annoyingly long time to swap going through network connections etc.

My IT guy is being cheap about buying a second Ethernet card for the controls engineers here so that's not an option either unfortunately.

So, does anybody know a better way, program or Windows script that will do this simple task quickly and easily? There seems a few things out there on the internet but nothing that looks like it was made for this sort of simple task.

Cheers!

Eric Nelson · Oct 9, 2005

I know what you mean. On my laptop, I have my wireless card set to DHCP, and my 'wired' NIC set with a static address. I use the wireless button to toggle back and forth.

I would buy a second NIC card and be done with it. They're awfully cheap these days. Just buy your own and install it... No one will know...

There may be some way to do 'fast switching' in Windows, but I don't know. I wonder if you could setup two user accounts using different network settings. Then just log in/out to switch IPs...

-Eric

HenryLamboo · Oct 10, 2005

I go with Eric, buy a second Ethernet card. Other options always cost time and time is money.

Alan Case · Oct 10, 2005

I am almost ready to buy a USB to ethernet adaptor so I can do the same for my notebook. If they are cheap enough I might even get one for each factory I work in. Regards Alan Case

rta53 · Oct 10, 2005

Maybe this isn't an option for you but on our network I have about 10 IP addresses that are reserved for my use. I just give one of those to the PLC or HMI I am programming. This way I can be always be connected to my e-mail without having to switch back and forth.

jstolaruk · Oct 10, 2005

I set up a couple of cmd batch files using the netsh command to change the IP address back and forth and put a couple of shortcuts on my desktop. check it out in the XP help center.

RussB · Oct 10, 2005

jstolaruk said:
I set up a couple of cmd batch files using the netsh command to change the IP address back and forth and put a couple of shortcuts on my desktop. check it out in the XP help center.

Thanks for the information on this.
Here is a link to more detail.
http://www.jsifaq.com/SUBE/TIP2200/rh2279.htm

Greg Dake · Oct 10, 2005

Here ya go

Here's the batch file I use, I used it to switch between home or DHCP and work which is a static address. Modify to your needs. You will need choice.com in your system32 directory. Our IT guy put this together.

Greg

@echo off
cls
choice.com /c [H,W]
echo Please wait while changes are made...
if %errorlevel%==1 goto home
if %errorlevel%==2 goto work
goto done
:home
netsh interface ip set address "local area connection" dhcp
netsh interface ip set dns "local area connection" dhcp
goto done

:work
netsh interface ip set address "local area connection" static 10.1.x.5 255.255.x.0 10.1.x.1 1
netsh interface ip add dns "local area connection" 10.1.x.x
netsh interface ip add dns "local area connection" 10.1.x.x
goto done

:done

:end

monkeyhead · Oct 10, 2005

On my XP laptop, I have it configured for DHCP as my primary address and a 192.168.1.x address configured as the secondy option.

When I plug into the company network I get a dynamic address, when I plug into a network or VLAN with no DHCP server it defaults to the 192.168.1.x address.

Peter Nachtwey · Oct 10, 2005

Greg, that is the easy

How do you switch domains? At work we have a login server called \\Delta. At home I use a workgroup called HOME. I have found that I can switch between the wired Ethernet and the wireless Ethernet no problem and access the internet. It is switch the domains that give me fits. I can't access the HOME workgroup if the log in domain server isn't available. I just got XP for my laptop. It looks like it can be done but it isn't automatic and will be a pain in my rear as long as I have Windoze Xtra Poor.

jstolaruk · Oct 10, 2005

Peter Nachtwey said:
How do you switch domains? At work we have a login server called \\Delta. At home I use a workgroup called HOME. I have found that I can switch between the wired Ethernet and the wireless Ethernet no problem and access the internet. It is switch the domains that give me fits. I can't access the HOME workgroup if the log in domain server isn't available. I just got XP for my laptop. It looks like it can be done but it isn't automatic and will be a pain in my rear as long as I have Windoze Xtra Poor.

Check out the net user command. Its a carryover from NT.

rdrast · Oct 10, 2005

Peter Nachtwey said:
How do you switch domains? At work we have a login server called \\Delta. At home I use a workgroup called HOME. I have found that I can switch between the wired Ethernet and the wireless Ethernet no problem and access the internet. It is switch the domains that give me fits. I can't access the HOME workgroup if the log in domain server isn't available. I just got XP for my laptop. It looks like it can be done but it isn't automatic and will be a pain in my rear as long as I have Windoze Xtra Poor.

Also, what login mode for windows XP are you useing? the actual 'Login Box', or the click-list of user names?

If it's the login box, you may have to open the options, or advanced button, but there you can switch from logging into the domain, or the local machine itself.

If you don't have the login box, you need to go to user accounts in control panel, advanced tab, and check off the 'Secure Logon' button at the bottom to get the login box.

Good luck

Derek McFarland · Oct 11, 2005

Where do you get choice.com?

Eric Nelson · Oct 11, 2005

Derek McFarland said:
Where do you get choice.com?

Well, it sure isn't available at www.choice.com...

I found that it's included in the DOS 6.22 Supplemental disk, which is HERE.

-Eric

theDave2 · Oct 11, 2005

Derek McFarland said:
Where do you get choice.com?

You don't need choice.com by just making 2 batch files: HomeIP.bat & WorkIP.bat and put the lines needed in each.

Or a bit of clever re-coding of the original batch file, with a parameter, will also do away with it.

Fast switching between dynamic and static IP for PLC programming?

Binaural

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Eric Nelson

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HenryLamboo

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Alan Case

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rta53

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jstolaruk

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RussB

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Greg Dake

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monkeyhead

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Peter Nachtwey

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