Common vlan with no host privileges
In a Debian 12 host (Qemu 7.2.13), not using superuser privileges, I launch VM1: $ qemu-system-x86_64 -name "Windows XP" (...) -device rtl8139,netdev=net0 -netdev user,id=net0,smb=/home/_all/public -netdev socket,id=vlan-winxp,mcast=230.0.0.1:1234 -device rtl8139,netdev=vlan-winxp and VM2: $ qemu-system-x86_64 -name debian10 -device rtl8139,netdev=net0 -netdev user,id=net0,smb=/home/_all/public -netdev socket,id=vlan-winxp,mcast=230.0.0.1:1234 -device virtio-net-pci,netdev=vlan-winxp Then in guest VM1 first (default) NIC acquires address 10.0.2.15/24 and I configure manually second NIC to have address 192.168.139.1/24 In guest VM2 first (default) NIC also acquires address 10.0.2.15/24 and I configure manually second NIC to have address 192.168.139.139/24 From VM1 I ping to 192.168.139.139 with result "Timeout" From VM2 I ping to 192.168.139.1 with result "Destination Host Unreachable" My goal is to make a Windows XP (VM1) access old Samba in Debian 10 (VM2), and VM2 accesses to host smb/qemu resource. Both guests should reach WAN/Internet through user net (virtual gateway 10.0.2.2) My questions: 1. What do I need to add to command line so communications between guests works? 2. Is there some documentation about fd= and localaddr= parameters I found on web comments? What are they intended for? Thank you. -- Narcis Garcia
Re: QEMU, Windows 11, and Raspios
Hi there, On Mon, 21 Oct 2024, Jakob Bohm via wrote: On 2024-10-19 14:09, G.W. Haywood wrote: On Fri, 18 Oct 2024, Ignacio wrote: I am currently using a laptop that is running Windows 11 and I have downloaded QEMU. However, I cannot figure out how to use QEMU to emulate Raspios. Raspios does not use a .iso, but instead a .img. I was wondering if there is a way around this or if I am complicating this process. There surely is a way. The two data formats you mention are different because they are used for different purposes. [Snipped Long ranty description of everything but how to use the files with qemu ] Apologies if you found my post ranty. It was intended to help with an understanding of the differences between ISO files and filesystem image files. Nothing more. The rant got a lot of details wrong, so don't use it. Apologies too if there were mistakes in my rant. In fact it was just a draft, which I sent by accident - and from the wrong email address. If you would be kind enough to mark with an 'X' any details which you found to be wrong, even if it helps no-one else it may help me to get things clearer in my mind and hopefully avoid misleading anyone else. Thank you. -- 73, Ged.
Re: Common vlan with no host privileges
+ Is there some way to just make guests have their simple SLIRP scenario and each one sees a single NIC with dynamically acquired 10.0.2.15 and 10.0.2.16 IP addresses in same unified guests network? El 23/10/24 a les 21:03, Narcis Garcia ha escrit: In a Debian 12 host (Qemu 7.2.13), not using superuser privileges, I launch VM1: $ qemu-system-x86_64 -name "Windows XP" (...) -device rtl8139,netdev=net0 -netdev user,id=net0,smb=/home/_all/public -netdev socket,id=vlan-winxp,mcast=230.0.0.1:1234 -device rtl8139,netdev=vlan-winxp and VM2: $ qemu-system-x86_64 -name debian10 -device rtl8139,netdev=net0 -netdev user,id=net0,smb=/home/_all/public -netdev socket,id=vlan-winxp,mcast=230.0.0.1:1234 -device virtio-net-pci,netdev=vlan-winxp Then in guest VM1 first (default) NIC acquires address 10.0.2.15/24 and I configure manually second NIC to have address 192.168.139.1/24 In guest VM2 first (default) NIC also acquires address 10.0.2.15/24 and I configure manually second NIC to have address 192.168.139.139/24 From VM1 I ping to 192.168.139.139 with result "Timeout" From VM2 I ping to 192.168.139.1 with result "Destination Host Unreachable" My goal is to make a Windows XP (VM1) access old Samba in Debian 10 (VM2), and VM2 accesses to host smb/qemu resource. Both guests should reach WAN/Internet through user net (virtual gateway 10.0.2.2) My questions: 1. What do I need to add to command line so communications between guests works? 2. Is there some documentation about fd= and localaddr= parameters I found on web comments? What are they intended for? Thank you. -- Narcis Garcia
