I am writing a network device driver for Windows. I have got the driver working but it shows up as generic Ethernet 2 in both ipconfig output and in Control Panel>Network Adapters. How do I set the interface name to a custom name from within the driver code? I do not want to do it from user level tools.
ipconfig output:
Ethernet adapter Ethernet 2:
Connection-specific DNS Suffix . :
Link-local IPv6 Address . . . . . : fe80::b5d1:2ce1:3e7c:5aa7%18
Autoconfiguration IPv4 Address. . : 169.254.90.167
Subnet Mask . . . . . . . . . . . : 255.255.0.0
Default Gateway . . . . . . . . . :
Network Adapters GUI screenshot:
Control Panel>Network Adapters
Windows does not have any feature for a NIC driver to name itself.
Naming is a bit more complicated than it looks:
Windows localizes the name into the user's language and in some cases, automatically updates the name if the system locale changes.
In one legal jurisdiction, the OS implements special government-mandated naming rules.
When using the "Consistent Device Naming" feature, Windows incorporates the PCI bus topology into the network interface's name.
In the future, we may implement new naming features, like allowing the administrator to name all NICs after their MAC addresses.
Allowing the NIC driver to directly assign its own name would undermine the OS's ability to deliver features like those.
Source: I wrote the OS code to determine the name that is assigned to a newly-installed network interface.
Maybe there's another way to solve this problem? What is the ultimate problem you want to solve? (Stack Overflow isn't a discussion board, so an in-depth discussion with back-and-forth is difficult here. Many Windows driver developers hang out on the OSR forum instead.)
Related
I have an stm32H743 micro controller webserver (Cubeide LWIP) which displays a small webpage on my local LAN.
When I look at the router page, I see that all local IP's have a name associated with them.
Ethernet: COM-MID1 80:c7:55:94:12:14 192.168.1.115
STM32 00:80:e1:01:00:23 192.168.1.75
My question is - how do I change the name 'STM32' in my webserver code?
As you may imagine, there are thousands of references in my source code and I cant find the corresponding one. Where is it likely to be?
Thanks
Chris
Could it be that your router is presenting client host names from DHCP option 12?
With lwIP, you can specify the DHCP client host name by #defining the LWIP_NETIF_HOSTNAME option and then setting the hostname-field in the netif struct.
My question is how to set the pc/pg interface in Step 7? I know the PLC's IP but it seems that the program is unavailable to find the PLC in the list of available devices. I am using TCP/IP connection so it would be ideal if I could receive some steps in configuring the interface the right way.
Doubleclick on "Setting PG/PC Interface" in the "Control Panel" of Windows.
Set the "Access Point of Application" to "S7ONLINE."
In the list "Interface parameter set used", select the required interface parameter set. If the required interface parameter set is not displayed, you must first install a module or protocol via the "Select" button. The interface parameter set is then generated automatically. On plug-and-play systems, you can not install plug and play CPs manually (CP 5611 and CP 5511). They are integrated automatically in "Setting PG/PC Interface" after you have installed the hardware in your PG/PC.
If you are using TIA Portal, you might want to look into Control Panel / Communication Settings.
If you want to connect with a LAN cable to the PLC's Ethernet/Profinet port you must select your Network Card in the PG/PC Interface (or Communication Settings).
After that you should use a fixed IP address on your Network Card.
If the PLC has IP 192.168.0.1 and subnet mask 255.255.255.0 you should set 192.168.0.2 and the same subnet mask.
For this, go to your Network Adapters list. In Windows10 it's Control Panel\Network and Internet\Network Connections
Then right click your Network Card -> Properties
Go to Internet Protocol Version 4 (TCP/IPv4) Properties and enter manually your IP address.
To test the communication open Command Prompt and ping the PLC (eg. "ping 192.168.0.1").
Then probably you will be able to connect to the PLC.
I am new with u-boot and uclinux ,
How can i add one more ethernet mac interface in u-boot.
As seen at startup of u-boot in only one interface comes
Net: eth driver init
M2S_MAC
I want two add one more so that i can have one more ip address i.e. eth1
I have read following question
Can u-boot support more than one ethernet port?
where i got that eth_current_changed() and eth_set_current() in net/eth.c has to change
but it doesn't defines ,how to add a interface . i have got the driver for the new mac interface also.
Yes, multiple ethernet devices are well supported. The exact details will depend on what board you're working from and the driver in question, or if you're trying to have different distinct drivers registered.
I am reading book 'CCNA Routing and Switiching Study Guide - Lammle, Todd' wherein there was a command to create an interface (int f0/0).
On CISCO Router command when I am giving a command
Corp(Config)#int f0/0
It is displaying error message as "Invalid interface type and number". Please help me with this command.
If you are working on packet tracer or gns3, go to the arrow on the router to show interface name. Or you can write this command:
corp # show ip interface brief
to find out the interfaces available to you.
Your router doesn't have a module with a port named ' int f0/0 ' , turn off the router in your simulator (Packet tracer, GNS3..) and try to add a module wish have a port with 'int f0/0' ,otherwise, try to understand which port type and number your router has.
Tyr this command in ur CLI: show ip interface brief if it doesn't show u nothing try this 'do show ip interface brief'
when you are in global configuration mode type
hit this coomand:
do show ip int brief
Ip int (put the interface name) and configure it
Well its totally depends on your router's module name...First check the module name by using command show ip interface brief in privilege mode.. if your router have module with f0/0 then only router will enter interface f0/0..
Below is the output of the ipconfig of the machine where web server is hosted:
Ethernet adapter Local Area Connection:
Connection-specific DNS Suffix . : Link-local IPv6 Address . .
. . . : fe80::f85b:4256:ee76:24a4%11 IPv4 Address. . . . . . . . .
. . : 10.213.254.119 Subnet Mask . . . . . . . . . . . :
255.255.255.0 Default Gateway . . . . . . . . . : 10.213.254.252
I can access the website using say: "http://10.213.254.119/test"
Now I am interested to know how can I access the same page using link local IPv6 address?
I found that most browsers don't support scope identifiers in URLs. Since scope identifiers are usually required for link-local addresses, that means those browsers can't access link-local addresses. Creating a DNS entry pointing to the link-local address won't work either since the DNS entry cannot specify a scope identifier.
Sometimes I have needed to access the webinterface of equipment which wasn't even on the same link. That means I would have two obstacles preventing me from using a link-local address to access it. But I found a simple method which solved both of those problems for me.
Run an ssh client on the host where the browser is running. Connect to a host with a direct link to the equipment I want to access through a link-local address, and set up a port-forwarding. For example the command to do so could look like this:
ssh -L '8080:[fe80::200:5eff:fe00:53b6%eth0]:80' host.example.com
At this point I can access it through localhost, which doesn't require a scope identifier: http://[::1]:8080/. This of course also works if ssh client and ssh server happen to both be running on the same machine as the webbrowser.
You can access it using curl as:
curl -6 -g --interface eth0 "http://[e80::f85b:4256:ee76:24a4]:8080" -vvv
Most browsers don't support that, and even if they did you would have to use a URL like http://[fe80::f85b:4256:ee76:24a4%eth0]/ where eth0 is the identifier of the link on the client system, and so can be different for each client.
Better to use routable IPv6 address.