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Qemu maximum Adapter 8 Limitation on new gns3 for windows http://forum.gns3.net/topic12536.html |
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Author: | raipraveen83 [ Sat Oct 18, 2014 7:50 pm ] |
Post subject: | Qemu maximum Adapter 8 Limitation on new gns3 for windows |
Hi Experts, i notice in new gns3 if we emulate anything i qemu we get maximum 8 interface only.why such limitation in new gns3 and how can i activate more than 8 interface in qemu running on windows machine.as i am not a linux guy or not very good with linux and qemu.so i need you guys help to activate my qemu for more than 8 interface on my windows machine... please share the method thanks in advance Praveen |
Author: | raipraveen83 [ Mon Oct 20, 2014 5:37 am ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
Hi Experts still waiting for your response pls answer to this thread............... |
Author: | grossmj [ Mon Oct 20, 2014 5:24 pm ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
Hi, This is a Qemu limitation if I remember correctly. Can someone else confirm we cannot have more than 8 interfaces in Qemu? Thanks, |
Author: | twv [ Mon Oct 20, 2014 7:05 pm ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
grossmj wrote: Hi, This is a Qemu limitation if I remember correctly. Can someone else confirm we cannot have more than 8 interfaces in Qemu? Thanks, Yes. Some OSs obviously have limits. I checked with Tinycore and Microcore. Tinycore wouldn't ping out of the NIC 9, so must be limited to 10. Microcore didn't have any problems with 16. I used GNS 0.8.7 because it allows setting the adapter number higher than 8. |
Author: | raipraveen83 [ Mon Oct 20, 2014 7:20 pm ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
grossmj wrote: Hi, This is a Qemu limitation if I remember correctly. Can someone else confirm we cannot have more than 8 interfaces in Qemu? Thanks, Jeremy, in old version of Gns3 there is more interfaces .pls check and if possible pls find solution to overcome this limitation |
Author: | claydon_dan [ Mon Oct 20, 2014 9:38 pm ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
Jeremy is correct... It is a qemu limitation (that is well known with a little google search). It's possible to modify qemu to support more as mentioned in the following post: post6979.html#p6979 And the file in question can be seen in full in the Qemu Github mirror: https://github.com/qemu/qemu/blob/maste ... net.h#L163 From a GNS3 point of view, I feel it's most sensible to stick with what Qemu has as it's default (otherwise we're going to run into problems with people not running a modified version). |
Author: | grossmj [ Mon Oct 20, 2014 10:11 pm ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
Quote: From a GNS3 point of view, I feel it's most sensible to stick with what Qemu has as it's default (otherwise we're going to run into problems with people not running a modified version). I agree. Ideally, we should have this changed upstream. I wonder what is the reason to have a low value like this? |
Author: | twv [ Tue Oct 21, 2014 1:49 am ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
claydon_dan wrote: Jeremy is correct... It is a qemu limitation (that is well known with a little google search). It's possible to modify qemu to support more as mentioned in the following post: post6979.html#p6979 And the file in question can be seen in full in the Qemu Github mirror: https://github.com/qemu/qemu/blob/maste ... net.h#L163 From a GNS3 point of view, I feel it's most sensible to stick with what Qemu has as it's default (otherwise we're going to run into problems with people not running a modified version). The QEMU version (0.11.0) that comes packaged with the All-In-One GN3 0.8.7 seems to limit the number of adapters to 8 but the QEMU (2.1.0) bundled with the beta works fine if you point the 0.8.7 GUI to use the beta 4 version. I used a standalone install of QEMU on Windows 7,was able to use the qemuwrapper and qemu-img that were bundled with GNS3 but changed the executable path to the standalone Qemu. So just to be clear: GNS3 0.8.7 gui, qemuwrapper.ex, and qemu-img.exe was used with the QEMU (2.15.0) binary installed as a standalone. The results were that I was able to bump the NICs up to 16 in the QEMU config for Tinycore connect it to a hub, put a router on the other side, and ping back and forth with eth15. I didn't check every adapter available and I can't account for stability because I don't have a use for 16 ports on one guest yet. So current limitation is a matter of the GNS3 1.0's hard limit of 8 adapters max. |
Author: | raipraveen83 [ Tue Oct 21, 2014 5:28 am ] |
Post subject: | Re: Qemu maximum Adapter 8 Limitation on new gns3 for window |
twv wrote: claydon_dan wrote: Jeremy is correct... It is a qemu limitation (that is well known with a little google search). It's possible to modify qemu to support more as mentioned in the following post: post6979.html#p6979 And the file in question can be seen in full in the Qemu Github mirror: https://github.com/qemu/qemu/blob/maste ... net.h#L163 From a GNS3 point of view, I feel it's most sensible to stick with what Qemu has as it's default (otherwise we're going to run into problems with people not running a modified version). The QEMU version (0.11.0) that comes packaged with the All-In-One GN3 0.8.7 seems to limit the number of adapters to 8 but the QEMU (2.1.0) bundled with the beta works fine if you point the 0.8.7 GUI to use the beta 4 version. I used a standalone install of QEMU on Windows 7,was able to use the qemuwrapper and qemu-img that were bundled with GNS3 but changed the executable path to the standalone Qemu. So just to be clear: GNS3 0.8.7 gui, qemuwrapper.ex, and qemu-img.exe was used with the QEMU (2.15.0) binary installed as a standalone. The results were that I was able to bump the NICs up to 16 in the QEMU config for Tinycore connect it to a hub, put a router on the other side, and ping back and forth with eth15. I didn't check every adapter available and I can't account for stability because I don't have a use for 16 ports on one guest yet. So current limitation is a matter of the GUI's hard limit of 8 adapters max. Hi Twv, thanks buddy for sharing your trick .would you pls tell from where u get QEMU (2.15.0) binary installer for windows .as on gns3 portal i search but not get i also search on qemu there also its not available.please help me to get it share your QEMU (2.15.0) binary installer with us.... thanks once again |
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