Solved

IP: Detecting the Default Gateway

Posted on 2000-03-02
7
177 Views
Last Modified: 2010-04-02
How can I (programmatically) detect what my default gateway is?
0
Comment
Question by:jhattingh
  • 4
  • 2
7 Comments
 
LVL 7

Expert Comment

by:KangaRoo
ID: 2576611
Mh, found some IP info behind:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\Class\NetTrans
0
 
LVL 1

Author Comment

by:jhattingh
ID: 2576642
Thanks for responding.

I take it there isn't an API for this. In which case, I found that the DG is shown in

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\{5A7F5924-5CC7-473D-B4C1-B683BA607D49}\Parameters\Tcpip

How would I programmatically retrieve or identify this key?
0
 
LVL 1

Author Comment

by:jhattingh
ID: 2576646
.. I don't mean how do I read the registry! I mean findin the GUID that identifies the correct key...
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
LVL 7

Expert Comment

by:KangaRoo
ID: 2576845
Aie, that key is not on my system :(

For using the registry, check the manuals (or win32.hlp)
Following are the functions used with the registry:

RegCloseKey
RegConnectRegistry
RegCreateKey
RegCreateKeyEx
RegDeleteKey
RegDeleteValue
RegEnumKey
RegEnumKeyEx
RegEnumValue
RegFlushKey
RegGetKeySecurity
RegLoadKey
RegNotifyChangeKeyValue
RegOpenKey
RegOpenKeyEx
RegQueryInfoKey
RegQueryMultipleValues
RegQueryValue
RegQueryValueEx
RegReplaceKey
RegRestoreKey
RegSaveKey
RegSetKeySecurity
RegSetValue
RegSetValueEx
RegUnLoadKey

The tool WinIpCfg uses RegOpenKey, RegQueryValueEx and RegCloseKey.
0
 
LVL 32

Accepted Solution

by:
jhance earned 50 total points
ID: 2576868
If you are running Win98 or Win2000, the IPHLPAPI.DLL offers the:

GetAdaptersInfo() function which will return the information you are looking for.

On Win95, you have to search the registry for the right network adapter and then find the gateway setting for that adapter.

On NT, it's the same process just a different registry tree.
0
 
LVL 1

Author Comment

by:jhattingh
ID: 2576893
Fantastic!
0
 
LVL 1

Author Comment

by:jhattingh
ID: 2576896
Thank you
0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Introduction This article is the first in a series of articles about the C/C++ Visual Studio Express debugger.  It provides a quick start guide in using the debugger. Part 2 focuses on additional topics in breakpoints.  Lastly, Part 3 focuses on th…
Many modern programming languages support the concept of a property -- a class member that combines characteristics of both a data member and a method.  These are sometimes called "smart fields" because you can add logic that is applied automaticall…
The viewer will learn how to user default arguments when defining functions. This method of defining functions will be contrasted with the non-default-argument of defining functions.
The viewer will be introduced to the member functions push_back and pop_back of the vector class. The video will teach the difference between the two as well as how to use each one along with its functionality.

947 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

19 Experts available now in Live!

Get 1:1 Help Now