hi,

I come back to this subject about using VDE to connect VM.
this is what I use:

$ vde_switch
$ slirpvde -L 2222:10.0.2.101:22
$ qemu -enable-kvm -m 512 -nic vde,mac=52:54:00:12:34:56 samba.disk      #
10.0.2.101/24
$ qemu -enable-kvm -m 512 -nic vde,mac=52:54:00:12:34:57 linux.disk      #
10.0.2.102/24
$ qemu -enable-kvm -m 1024 -nic vde,mac=52:54:00:12:34:58 windows.disk   #
10.0.2.103/24

but I have many network problems with it that I can't identify and explain
to access in ssh (ssh -p 2222 root@localhost) to the targeted machine : one
time it works, the other time it doesn't, the other time the connection
freezes (and eventually resumes after a few moments) or is simply cut off (
slirpvde returns without any explanation).

of course I suspect slirpvde to be the problem, especially since the VM
communicate with each other without problems.

do any of you have an explanation, a beginning of a solution or a path to
follow ?
is VDE still maintained ? I like using it because it does not require any
privileges.

regards, lacsaP.

---------- Forwarded message ---------
De : Pascal <patate...@gmail.com>
Date: lun. 23 sept. 2019 à 10:33
Subject: Re: connect virtual machines to each other
To: qemu-discuss <qemu-discuss@nongnu.org>


hi,

for information : the disabling of my firewall fixed the problem :-)

regards, lacsaP.

Le mer. 18 sept. 2019 à 11:57, Pascal <patate...@gmail.com> a écrit :

> hi,
>
> I have two Linux VM that communicate without any problem when I use VDE
> but their communication stops when I try to connect them with a multicast
> bus : does anyone have an idea ?
>
> vde_switch
> qemu -nic vde,mac=52:54:00:11:11:11 vm1.disk
> qemu -nic vde,mac=52:54:00:22:22:22 vm2.disk
>
> and all is ok (ping && cetera) :-)
>
> qemu -nic socket,mac=52:54:00:11:11:11,mcast=230.0.0.1:1234 vm1.disk
> qemu -nic socket,mac=52:54:00:22:22:22,mcast=230.0.0.1:1234 vm2.disk
>
> and all is ko :-(
>
> regards, lacsaP.
>

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