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- Note that the bridge uses a random MAC and can be overridden.

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- Provide an example of assigning an IP to the bridge.

PR:		kern/102607
Submitted by:	Stefan Bethke <stb@lassitu.de>
MFC after:	3 days
This commit is contained in:
Andrew Thompson 2006-10-08 19:41:05 +00:00
parent bfb06714ec
commit 69f35a88d2
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=163137
1 changed files with 18 additions and 0 deletions
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18
share/man/man4/if_bridge.4
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@ -78,6 +78,13 @@ command or using the
variable in
.Xr rc.conf 5 .
.Pp
The
.Nm
interface randomly chooses a link (MAC) address in the range reserved for
locally adminstered addresses when it is created.
The address can be changed by assigning the desired link address using
.Xr ifconfig 8 .
.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
@ -232,6 +239,17 @@ ifconfig bridge0 \e
up
.Ed
.Pp
The bridge can be used as a regular host interface at the same time as bridging
between it's member ports.
In this example, the bridge connects em0 and em1, and will receive it's IP
address through DHCP:
.Bd -literal -offset indent
cloned_interfaces="bridge0"
ifconfig_bridge0="addm em0 addm em1 DHCP"
ifconfig_em0="up"
ifconfig_em1="up"
.Ed
.Pp
The bridge can tunnel Ethernet across an IP internet using the EtherIP
protocol.
This can be combined with