diff options
| author | Michael Osipov <michaelo@FreeBSD.org> | 2025-12-26 13:40:37 +0000 |
|---|---|---|
| committer | Michael Osipov <michaelo@FreeBSD.org> | 2025-12-26 16:35:20 +0000 |
| commit | e1bfd541c7cdee1e184cacb2ea3bbebb3a500dfb (patch) | |
| tree | bfcb24235675d2c81825ef3a14fd11384b728f06 | |
| parent | 02376be32d6bcccc0c722c08779bd71e70516599 (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
| -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 aafa4b81a076..d3b067509ced 100644 --- a/usr.sbin/bhyve/bhyve.8 +++ b/usr.sbin/bhyve/bhyve.8 @@ -25,7 +25,7 @@ .\" 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 @@ -551,6 +551,7 @@ 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 b511d5ef6bfd..4ead94690d91 100644 --- a/usr.sbin/bhyve/bhyve_config.5 +++ b/usr.sbin/bhyve/bhyve_config.5 @@ -517,8 +517,10 @@ 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" @@ -746,8 +748,10 @@ 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 |