Re: Common vlan with no host privileges

[Narcis Garcia]

+ Is there some way to route a TCP port, inverse way to SLIRP hostfwd:

When guest communicates to tcp/10.0.2.2:139 , to traffic be forwarded to 
different host port or to another VM.


El 24/10/24 a les 8:31, Narcis Garcia ha escrit:
> + 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