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Author: Mario Marietto
Date:  
To: Ralph Ronnquist
CC: dng
Subject: Re: [DNG] Which qemu version is shipped by default with devuan 3 ?
root@devuan:~# sudo modprobe ip_tables

root@devuan:~# sudo echo 'ip_tables' >> /etc/modules

root@devuan:~# iptables -t nat -A POSTROUTING -o mlan0 -j MASQUERADE

iptables v1.8.7 (legacy): can't initialize iptables table `nat': Table does
not exist (do you need to insmod?)
Perhaps iptables or your kernel needs to be upgraded.

On Tue, Aug 15, 2023 at 4:11 PM Mario Marietto <marietto2008@???>
wrote:

> mlan0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
>        inet 192.168.1.6  netmask 255.255.255.0  broadcast 192.168.1.255
>        inet6 fe80::ba86:1bad:4bb5:cf52  prefixlen 64  scopeid 0x20<link>
>        ether 60:21:c0:e9:44:63  txqueuelen 1000  (Ethernet)
>        RX packets 604  bytes 146184 (142.7 KiB)
>        RX errors 0  dropped 0  overruns 0  frame 0
>        TX packets 453  bytes 47371 (46.2 KiB)
>        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

>
> root@devuan:~# iptables -t nat -A POSTROUTING -o mlan0 -j MASQUERADE
>
> iptables v1.8.7 (legacy): can't initialize iptables table `nat': Table
> does not exist (do you need to insmod?)
> Perhaps iptables or your kernel needs to be upgraded.
>
> On Tue, Aug 15, 2023 at 1:55 PM Ralph Ronnquist <rrq@???> wrote:
>
>> a) set up a tap on the host:
>> # ip tuntap add tap0 mode tap
>> # ip address add 10.0.2.1/24 dev tap0
>>
>> b) setting up forwarding and NAT (over eth0):
>> # sysctl net.ipv4.ip_forward=1
>> # iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE
>>
>> c) parameter for declaring tap for qemu
>> -netdev tap,ifname=tap0,script=no,id=net0
>>
>> the parameter is used instead of "-netdev type=user..."
>>
>> d) you also need to bring up the client fxp0 statically (with e.g.
>> 10.0.2.2/24) instead of using dhcp. I'm not totally sure how that's
>> done in freebsd.
>>
>> Ralph.
>>
>> On Tue, Aug 15, 2023 at 12:43:55PM +0200, Mario Marietto wrote:
>> > I get this error and as you can see,the problem is that it is disabled
>> on
>> > the kernel :
>> >
>> >
>> https://stackoverflow.com/questions/8080226/bridge-utils-add-bridge-failed-package-not-installed
>> >
>> > My goal is to configure qemu for accepting a bridge connection.
>> >
>> > The instructions you provided about how to configure the network are
>> > unclear to me. Can you write the commands that I should issue one by
>> one ?
>> > I will try.
>> >
>> > On Tue, Aug 15, 2023 at 12:10 PM Ralph Ronnquist <rrq@???> wrote:
>> >
>> > > Interesting.. I don't know anything about what's possible on
>> > > Chromebook. I think it's slightly odd that bridge is disabled, but
>> > > perhaps you could use plain forwarding and NAT instead, with iptables,
>> > > rather than rebuilding the kernel?
>> > >
>> > > If qemu uses a tap, say tap0, then you simply enable forwarding in the
>> > > kernel (sysctl net.ipv4.ip_forward=1), and add an iptables nat rule
>> > > (iptables -t nat -A POSTROUTING -o eth0 -j MASQUERADE) .. that rule
>> > > assumes your outbound interface is eth0; replace that as applicable.
>> > >
>> > > With a qemu tap you can't use dhcp in the client but will need to set
>> > > address statically. You also need to assigne an IP address at the host
>> > > end for the tap, which the client should nominate as gateway. E.g. you
>> > > could use 10.0.2.1/24 for the tap on the host, and 10.0.2.2/24 for
>> the
>> > > client.
>> > >
>> > > Ralph.
>> > >
>> > > On Tue, Aug 15, 2023 at 11:43:17AM +0200, Mario Marietto wrote:
>> > > > Not for me. This parameter :
>> > > >
>> > > > -device i82559b,netdev=net0,mac="52:54:00:12:34:55"
>> > > >
>> > > > give to me a lot of problems :
>> > > >
>> > > > 1) forces me to enter the UEFI menu and to choose manually the disk
>> that
>> > > > should boot
>> > > > 2) I can reach the login prompt of FreeBSD,but this network
>> configuration
>> > > > does not work :
>> > > >
>> > > > /etc/rc.conf
>> > > >
>> > > > hostname="marietto"
>> > > > ifconfig_fxp0="DHCP"
>> > > > local_unbound_enable="YES"
>> > > > gateway_enable="YES"
>> > > >
>> > > > /etc/resolv.conf
>> > > >
>> > > > nameserver 127.0.0.53
>> > > > options edns0 trust-ad
>> > > > search homenet.telecomitalia.it
>> > > > nameserver 8.8.8.8
>> > > >
>> > > > root@mario:~ # ifconfig
>> > > >
>> > > > lo0: flags=8049<UP,LOOPBACK,RUNNING,MULTICAST> metric 0 mtu 16384
>> > > >
>>  options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
>> > > >         inet6 ::1 prefixlen 128
>> > > >         inet6 fe80::1%lo0 prefixlen 64 scopeid 0x1
>> > > >         inet 127.0.0.1 netmask 0xff000000
>> > > >         groups: lo
>> > > >         nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
>> > > > fxp0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> metric 0
>> mtu
>> > > 1500
>> > > >         options=8<VLAN_MTU>
>> > > >         ether 52:54:00:12:34:55
>> > > >         inet 10.0.2.15 netmask 0xffffff00 broadcast 10.0.2.255
>> > > >         media: Ethernet autoselect (10baseT/UTP <half-duplex>)
>> > > >         status: active
>> > > >         nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

>> > > >
>> > > > I can ping 10.0.2.15,but not google.com ;
>> > > >
>> > > > root@mario:~ # ping google.com
>> > > >
>> > > > PING google.com (142.250.180.142): 56 data bytes
>> > > > frozen.
>> > > >
>> > > > Now,on the FreeBSD forum,the user "covacat" suggested me to :
>> "create
>> > > > a tap device on the linux side and bridge it with your ethernet
>> > > > iface"
>> > > >
>> > > > I tried,but now arises another problem : the kernel that I'm using
>> on
>> > > > the chromebook has the option bridge disabled in the kernel,so
>> > > >
>> > > > I have recompiled the kernel to enable it. Here comes another
>> problem
>> > > > : The new kernel worked,my Chromebook reached the desktop
>> environment
>> > > >
>> > > > access login,but mouse,keyboard and trackpad don't work. I think
>> that
>> > > > when I have recompiled the kernel I haven't produced the new kernel
>> > > >
>> > > > modules. Do you know what's the proper command to do this ? If I
>> > > > remember well,should it be "make modules" ?
>> > > >
>> > > >
>> > > >
>> > > > On Tue, Aug 15, 2023 at 2:34 AM Ralph Ronnquist <rrq@???> wrote:
>> > > >
>> > > > > The card "i82559b" worked for me.
>> > > > >
>> > > > > It boots without entering UEFI shell first. And it has update my
>> local
>> > > > > AAVMF32_VARS.fd to continue doing so.
>> > > > >
>> > > > > Perhaps if copy the system AAVMF32_VARS.fd once again, to refresh
>> > > > > locally, with a working boot then your will "learn" too?
>> > > > >
>> > > > > regards,
>> > > > >
>> > > > > Ralph.
>> > > > >
>> > > > > On Mon, Aug 14, 2023 at 07:55:36PM +0200, Mario Marietto wrote:
>> > > > > > Do you need to go inside the UEFI menu to boot FreeBSD or in
>> your
>> > > case it
>> > > > > > is detected at first shot ? because I haven't fixed the probem
>> yet.
>> > > > > > ...
>> > > > > > --
>> > > > > > Mario.
>> > > > > _______________________________________________
>> > > > > Dng mailing list
>> > > > > Dng@???
>> > > > > https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
>> > > > >
>> > > >
>> > > >
>> > > > --
>> > > > Mario.
>> > >
>> >
>> >
>> > --
>> > Mario.
>> _______________________________________________
>> Dng mailing list
>> Dng@???
>> https://mailinglists.dyne.org/cgi-bin/mailman/listinfo/dng
>>
>
>
> --
> Mario.
>



--
Mario.