Configuration issue with GNS3
Ohs's Bee
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Thimo7 -
Thimo7 -
Hello,
I am a beginner with GNS3, I am setting up a small local network but my problem is that I can't place the PCs on my network (connect them to the switch) supposedly I need to configure "Qemu Image" first and I don't know how to do that please help me. Additionally, every time I try a small network, even though I save it when I close the page, I can't find it the next time I open it, I have to start from scratch.
Please help me!
I am a beginner with GNS3, I am setting up a small local network but my problem is that I can't place the PCs on my network (connect them to the switch) supposedly I need to configure "Qemu Image" first and I don't know how to do that please help me. Additionally, every time I try a small network, even though I save it when I close the page, I can't find it the next time I open it, I have to start from scratch.
Please help me!
Configuration: Windows XP / Firefox 3.0.5
9 answers
Hi,
when you're working on a GNS3 project, there’s a button at the top in the menu called extract/import. You click on it and choose to export to the directory you want, and it will create .CFG files of your configurations (like routers, for example). But be careful, after each action on the switches' consoles, you need to type wr (which means write) so that GNS3 saves it in the configuration file, and then you can exit.
To open your configurations, you open the projects and go to import/export, choose import this time and import your configurations.
I hope I explained it well.
Good luck!
when you're working on a GNS3 project, there’s a button at the top in the menu called extract/import. You click on it and choose to export to the directory you want, and it will create .CFG files of your configurations (like routers, for example). But be careful, after each action on the switches' consoles, you need to type wr (which means write) so that GNS3 saves it in the configuration file, and then you can exit.
To open your configurations, you open the projects and go to import/export, choose import this time and import your configurations.
I hope I explained it well.
Good luck!
Ok, thanks, I understood that. I'll try to do it, but I still have a problem, which is how to configure the Qemu image?
Hello
for the PC configuration you can use vpcs (( https://wiki.freecode.com.cn/doku.php?id=wiki:vpcs ))
first take a cloud image for the PCs (or directly use a cloud in place of the PCs)
in its configuration in gns3 enter the @ 127.1.1.1 and go to vpcs and configure its PC with your address
here is the gns3 documentation, you will find the configuration in detail
to save your topology: first create a new project and at the end do "copy runi... st..""
for the PC configuration you can use vpcs (( https://wiki.freecode.com.cn/doku.php?id=wiki:vpcs ))
first take a cloud image for the PCs (or directly use a cloud in place of the PCs)
in its configuration in gns3 enter the @ 127.1.1.1 and go to vpcs and configure its PC with your address
here is the gns3 documentation, you will find the configuration in detail
to save your topology: first create a new project and at the end do "copy runi... st..""
Hello!
Sorry again nrck regarding the PC configuration, you had asked me to use vpcs, I used clouds but the problem still remains with the configuration. When I right-click on the cloud and go to configure, a window opens and being at "NIO Ethernet" it asks me for administrator rights and when I go into the administrator session apparently it's the same thing, ultimately I'm lost at this level. I read the documentation you sent me even though it’s in English but I don't really see the PC configuration.
Please help me, thank you in advance!
Sorry again nrck regarding the PC configuration, you had asked me to use vpcs, I used clouds but the problem still remains with the configuration. When I right-click on the cloud and go to configure, a window opens and being at "NIO Ethernet" it asks me for administrator rights and when I go into the administrator session apparently it's the same thing, ultimately I'm lost at this level. I read the documentation you sent me even though it’s in English but I don't really see the PC configuration.
Please help me, thank you in advance!
Hello!
Thank you again for your help, but I still have a small issue.
I read the documentation on pages 24, 25, and 26 as you indicated, and it helped me. I used the VPCS to simulate the PCs. By right-clicking on the PC to configure it, I go to the "NIO UDP" tab and enter the following values given by the documentation: << "Local port=30001", "Remote host=127.0.0.1", "Remote port=20001" (for PC 1)>>, << "Local port=30002", "Remote host=127.0.0.1", "Remote port=20002" (for PC 2)>> and so on until PC n, but I only use 3.
After adding and validating this, I make my connections, I have properly configured the interfaces of the routers and interconnected them, but the problem is that to enter the values for each PC (IP address, Mask, and Gateway), I can't do it on the PC for example, but on the VPCS software that I downloaded, I get a window that presents this: VPCS 1 >_ and from there I can enter the values for each PC, but to link it with the diagram (my network) is where I'm stuck because I tested the ping from the router to any PC and it doesn't work (non-existent path).
So what should I do from here, please?
Thank you again for your generosity!!!!!
Thank you again for your help, but I still have a small issue.
I read the documentation on pages 24, 25, and 26 as you indicated, and it helped me. I used the VPCS to simulate the PCs. By right-clicking on the PC to configure it, I go to the "NIO UDP" tab and enter the following values given by the documentation: << "Local port=30001", "Remote host=127.0.0.1", "Remote port=20001" (for PC 1)>>, << "Local port=30002", "Remote host=127.0.0.1", "Remote port=20002" (for PC 2)>> and so on until PC n, but I only use 3.
After adding and validating this, I make my connections, I have properly configured the interfaces of the routers and interconnected them, but the problem is that to enter the values for each PC (IP address, Mask, and Gateway), I can't do it on the PC for example, but on the VPCS software that I downloaded, I get a window that presents this: VPCS 1 >_ and from there I can enter the values for each PC, but to link it with the diagram (my network) is where I'm stuck because I tested the ping from the router to any PC and it doesn't work (non-existent path).
So what should I do from here, please?
Thank you again for your generosity!!!!!
Just to add, I wanted to say that I don't know if it's a memory issue with my machine because there are days when the machine shows the message: "Low virtual memory."
I don't understand why I can't get the VPCS window when configuring the nodes of my PCs. In fact, that's the problem, have a good evening!
I don't understand why I can't get the VPCS window when configuring the nodes of my PCs. In fact, that's the problem, have a good evening!
Hello
1st: After configuring PCs in VPCS, GNS3 automatically takes these addresses (that's the role of address 127.1.1.1). For example: if on your topology, there is a network 192.168.1.0/24 --> link the PCs as you did (uio udp ......) and in VPCS enter the addresses: 192.168.1.1 for pc1, 192.168.1.2 for pc2 ...... and 192.168.1.251 for the router interface (in GNS3), it automatically assigns these addresses to the PCs linked to this network, i.e. (192.168.1.0/24).
2nd: Regarding RAM, GNS3 reserves the RAM of the routers physically from the RAM of your PC. For example, the c7200 router requires 256MB of RAM and your PC only has 512MB, so after starting the router, only 256MB will remain on your physical RAM.
For that, there is an option on the routers ---> right-click on the router ---> "idle pc" and let it calculate --- choose the minimum number or numbers with *
3rd: I am bad at spelling and vocabulary of the French language
but I have understood the language well
good luck
1st: After configuring PCs in VPCS, GNS3 automatically takes these addresses (that's the role of address 127.1.1.1). For example: if on your topology, there is a network 192.168.1.0/24 --> link the PCs as you did (uio udp ......) and in VPCS enter the addresses: 192.168.1.1 for pc1, 192.168.1.2 for pc2 ...... and 192.168.1.251 for the router interface (in GNS3), it automatically assigns these addresses to the PCs linked to this network, i.e. (192.168.1.0/24).
2nd: Regarding RAM, GNS3 reserves the RAM of the routers physically from the RAM of your PC. For example, the c7200 router requires 256MB of RAM and your PC only has 512MB, so after starting the router, only 256MB will remain on your physical RAM.
For that, there is an option on the routers ---> right-click on the router ---> "idle pc" and let it calculate --- choose the minimum number or numbers with *
3rd: I am bad at spelling and vocabulary of the French language
but I have understood the language well
good luck
It depends on what you want to do. If you only want to do pings, use the VPCs; otherwise, use the virtual machines, preferably VMware.