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Diffstat (limited to 'share/man/man4/if_bridge.4')
| -rw-r--r-- | share/man/man4/if_bridge.4 | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/share/man/man4/if_bridge.4 b/share/man/man4/if_bridge.4 index 3701acd..9eebe98 100644 --- a/share/man/man4/if_bridge.4 +++ b/share/man/man4/if_bridge.4 @@ -92,6 +92,22 @@ the same link addresses. The address can be changed by assigning the desired link address using .Xr ifconfig 8 . .Pp +If +.Xr sysctl 8 +node +.Va net.link.bridge.inherit_mac +has non-zero value, newly created bridge will inherit MAC address +from its first member instead of choosing random link-level address. +This will provide more predictable bridge MAC without any +additional configuration, but currently this feature is known +to break some L2 protocols, for example PPPoE that is provided +by +.Xr ng_pppoe 4 +and +.Xr ppp 8 . +Now this feature is considered as experimental and is turned off +by-default. +.Pp A bridge can be used to provide several services, such as a simple 802.11-to-Ethernet bridge for wireless hosts, and traffic isolation. .Pp |
