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Date:      Sun, 31 Mar 2024 14:40:32 +0000
From:      Nuno Teixeira <eduardo@freebsd.org>
To:        FreeBSD virtualization <freebsd-virtualization@freebsd.org>
Subject:   Use aditional network card for vm
Message-ID:  <CAFDf7ULUuwxN8nPRR6o4i5SPUZH2yWA8N67UFCL3oxo62n4h9g@mail.gmail.com>

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Hello all,

My laptop have re0 and iwlwifi0 network cards with only re0 at use.
vm-bhyve sets it to ifconfig bellow.

I suspect that re0 being in promiscous mode, it will originate some network
problems with backup programs like restic when reading too much files
(restic check --read-data) and to fix this issue I turn off vm-bhyve
network setting.

Is it possible to have a card just to be in use by bhyve, e.g. usb external
ethernet dongle or even laptop wifi card?

Thanks,

-----
re0: flags=1008943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500

options=8209b<RXCSUM,TXCSUM,VLAN_MTU,VLAN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE>
        ether 00:2b:67:df:c6:73
        inet 192.168.1.67 netmask 0xffffff00 broadcast 192.168.1.255
        media: Ethernet autoselect (1000baseT <full-duplex>)
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>
lo0: flags=1008049<UP,LOOPBACK,RUNNING,MULTICAST,LOWER_UP> metric 0 mtu
16384
        options=680003<RXCSUM,TXCSUM,LINKSTATE,RXCSUM_IPV6,TXCSUM_IPV6>
        inet 127.0.0.1 netmask 0xff000000
        inet6 ::1 prefixlen 128
        inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2
        groups: lo
        nd6 options=21<PERFORMNUD,AUTO_LINKLOCAL>
vm-public: flags=1008843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP>
metric 0 mtu 1500
        options=0
        ether 02:f4:ac:f8:d6:be
        id 00:00:00:00:00:00 priority 32768 hellotime 2 fwddelay 15
        maxage 20 holdcnt 6 proto rstp maxaddr 2000 timeout 1200
        root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0
        member: re0 flags=143<LEARNING,DISCOVER,AUTOEDGE,AUTOPTP>
                ifmaxaddr 0 port 1 priority 128 path cost 20000
        groups: bridge vm-switch viid-4c918@
        nd6 options=9<PERFORMNUD,IFDISABLED>
-----

-- 
Nuno Teixeira
FreeBSD Committer (ports)

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Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div>Hello all,</div><div><br></div><div>My laptop have re=
0 and iwlwifi0 network cards with only re0 at use.</div><div>vm-bhyve sets =
it to ifconfig bellow.</div><div><br></div><div>I suspect that re0 being in=
 promiscous mode, it will originate some network problems with backup progr=
ams like restic when reading too much files (restic check --read-data) and =
to fix this issue I turn off vm-bhyve network setting.<br><br></div><div>Is=
 it possible to have a card just to be in use by bhyve, e.g. usb external e=
thernet dongle or even laptop wifi card?</div><div><br></div><div>Thanks,<b=
r></div><div><br></div><div>-----<br></div><div>re0: flags=3D1008943&lt;UP,=
BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,LOWER_UP&gt; metric 0 mtu 1500<=
br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 options=3D8209b&lt;RXCSUM,TXCSUM,VLAN_MTU,VL=
AN_HWTAGGING,VLAN_HWCSUM,WOL_MAGIC,LINKSTATE&gt;<br>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 ether 00:2b:67:df:c6:73<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 192.168.=
1.67 netmask 0xffffff00 broadcast 192.168.1.255<br>=C2=A0 =C2=A0 =C2=A0 =C2=
=A0 media: Ethernet autoselect (1000baseT &lt;full-duplex&gt;)<br>=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 status: active<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 nd6 opti=
ons=3D29&lt;PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL&gt;<br>lo0: flags=3D100804=
9&lt;UP,LOOPBACK,RUNNING,MULTICAST,LOWER_UP&gt; metric 0 mtu 16384<br>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 options=3D680003&lt;RXCSUM,TXCSUM,LINKSTATE,RXCSUM=
_IPV6,TXCSUM_IPV6&gt;<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet 127.0.0.1 netmask=
 0xff000000<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 inet6 ::1 prefixlen 128<br>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 inet6 fe80::1%lo0 prefixlen 64 scopeid 0x2<br>=C2=
=A0 =C2=A0 =C2=A0 =C2=A0 groups: lo<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 nd6 opti=
ons=3D21&lt;PERFORMNUD,AUTO_LINKLOCAL&gt;<br>vm-public: flags=3D1008843&lt;=
UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST,LOWER_UP&gt; metric 0 mtu 1500<br>=
=C2=A0 =C2=A0 =C2=A0 =C2=A0 options=3D0<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 ethe=
r 02:f4:ac:f8:d6:be<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 id 00:00:00:00:00:00 pri=
ority 32768 hellotime 2 fwddelay 15<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 maxage 2=
0 holdcnt 6 proto rstp maxaddr 2000 timeout 1200<br>=C2=A0 =C2=A0 =C2=A0 =
=C2=A0 root id 00:00:00:00:00:00 priority 32768 ifcost 0 port 0<br>=C2=A0 =
=C2=A0 =C2=A0 =C2=A0 member: re0 flags=3D143&lt;LEARNING,DISCOVER,AUTOEDGE,=
AUTOPTP&gt;<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 =C2=A0 ifma=
xaddr 0 port 1 priority 128 path cost 20000<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 =
groups: bridge vm-switch viid-4c918@<br>=C2=A0 =C2=A0 =C2=A0 =C2=A0 nd6 opt=
ions=3D9&lt;PERFORMNUD,IFDISABLED&gt;</div><div>-----</div><br><span class=
=3D"gmail_signature_prefix">-- </span><br><div dir=3D"ltr" class=3D"gmail_s=
ignature" data-smartmail=3D"gmail_signature"><div dir=3D"ltr"><span style=
=3D"color:rgb(102,102,102)">Nuno Teixeira<br>FreeBSD Committer (ports)</spa=
n></div></div></div>

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