diff options
| author | Michael Osipov <michaelo@FreeBSD.org> | 2025-12-26 14:40:37 +0100 |
|---|---|---|
| committer | Michael Osipov <michaelo@FreeBSD.org> | 2025-12-29 19:51:50 +0100 |
| commit | b4f84b19b4826e8af2b20af95c5f2b63a826f40d (patch) | |
| tree | 725c1c5decf4434654aaaed7cae9d86057059eea | |
| parent | d8c35dc1df476a6fe4666f6dbbb9d6c540eb2423 (diff) | |
bhyve: Document that MAC address has to be unicast
bhyve accepts any MAC address even foreign as long it is a unicast one.
Reviewed by: ziaee
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D54372
(cherry picked from commit e1bfd541c7cdee1e184cacb2ea3bbebb3a500dfb)
| -rw-r--r-- | usr.sbin/bhyve/bhyve.8 | 3 | ||||
| -rw-r--r-- | usr.sbin/bhyve/bhyve_config.5 | 12 |
2 files changed, 10 insertions, 5 deletions
diff --git a/usr.sbin/bhyve/bhyve.8 b/usr.sbin/bhyve/bhyve.8 index f3cec8e121a5..aba7b1767e48 100644 --- a/usr.sbin/bhyve/bhyve.8 +++ b/usr.sbin/bhyve/bhyve.8 @@ -22,7 +22,7 @@ .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" -.Dd December 23, 2025 +.Dd December 26, 2025 .Dt BHYVE 8 .Os .Sh NAME @@ -423,6 +423,7 @@ If is not specified, the MAC address is derived from a fixed OUI and the remaining bytes from an MD5 hash of the slot and function numbers and the device name. +If specified, it must be a unicast MAC address. .Pp The MAC address is an ASCII string in .Xr ethers 5 diff --git a/usr.sbin/bhyve/bhyve_config.5 b/usr.sbin/bhyve/bhyve_config.5 index 26387da0d59e..5b77caa75726 100644 --- a/usr.sbin/bhyve/bhyve_config.5 +++ b/usr.sbin/bhyve/bhyve_config.5 @@ -465,8 +465,10 @@ Intel e82545 network interfaces support the following variables: .It Sy Name Ta Sy Format Ta Sy Default Ta Sy Description .It Va mac Ta MAC address Ta generated Ta MAC address. -If an explicit address is not provided, -a MAC address is generated from a hash of the device's PCI address. +If not specified, the MAC address is derived from a fixed OUI, and the +remaining bytes from an MD5 hash of the slot and function numbers and +the device name. +If specified, it must be a unicast MAC address. .El .Ss Frame Buffer Settings .Bl -column "password" "[IP:]port" "127.0.0.1:5900" @@ -674,8 +676,10 @@ VirtIO network interfaces support the following variables: .It Sy Name Ta Sy Format Ta Sy Default Ta Sy Description .It Va mac Ta MAC address Ta generated Ta MAC address. -If an explicit address is not provided, -a MAC address is generated from a hash of the device's PCI address. +If not specified, the MAC address is derived from a fixed OUI, and the +remaining bytes from an MD5 hash of the slot and function numbers and +the device name. +If specified, it must be a unicast MAC address. .It Va mtu Ta integer Ta 1500 Ta The largest supported MTU advertised to the guest. .El |