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authorcinap_lenrek <cinap_lenrek@felloff.net>2017-12-17 20:51:41 +0100
committercinap_lenrek <cinap_lenrek@felloff.net>2017-12-17 20:51:41 +0100
commite31934f9f317205097f09b165bcaed2e5d00aaa1 (patch)
tree4deb93638be3282816ba634214eb5f2a3d3ea686 /sys/man/3
parent3e48a666658b2636f11e28dc589180102674d343 (diff)
bridge(3): clarify manpage, this is a layer2 bridge
yes, it peeks into IP packets to handle fragmentation when sending onto tunnel ports and does mss clamping. but it can carry arbitrary ethernet packets just fine (between ethernets).
Diffstat (limited to 'sys/man/3')
-rw-r--r--sys/man/3/bridge14
1 files changed, 6 insertions, 8 deletions
diff --git a/sys/man/3/bridge b/sys/man/3/bridge
index 21f989457..c37985598 100644
--- a/sys/man/3/bridge
+++ b/sys/man/3/bridge
@@ -1,6 +1,6 @@
.TH BRIDGE 3
.SH NAME
-bridge \- IPv4 Ethernet bridge
+bridge \- IP Ethernet bridge
.SH SYNOPSIS
.nf
.B bind -a #B\fIb\fP /net
@@ -17,7 +17,7 @@ bridge \- IPv4 Ethernet bridge
.SH DESCRIPTION
The
.I bridge
-device bridges IPv4 packets amongst Ethernet interfaces.
+device bridges packets amongst Ethernet interfaces.
The number
.I b
in the bind is optional and selects a particular bridge
@@ -58,7 +58,7 @@ Treat the device mounted at
.I path
(e.g.,
.LR /net/ether0 )
-as an Ethernet medium carrying IPv4 and ARP packets
+as an Ethernet medium
and associate it with this bridge (forward its packets to the
other interfaces associated with this bridge).
.I Ownhash
@@ -67,10 +67,10 @@ is an `owner hash'.
.BI "bind tunnel " "name ownhash path path2
Treat the device mounted at
.I path
-as a network tunnel carrying IPv4 and ARP packets,
+as a network tunnel carrying Ethernet packets,
the device mounted at
.I path2
-as an Ethernet medium carrying IPv4 and ARP packets
+as an Ethernet
and associate them with this bridge
(forward its packets to the
other interfaces associated with this bridge).
@@ -112,7 +112,7 @@ Set bridge
The only known option is
.LR tcpmss ,
which limits the TCP Maximum Segment Size of
-TCPv4 packets passing through to 1300 bytes.
+TCP packets passing through to 1300 bytes.
.TP
.BI "clear " option
Clear bridge
@@ -167,5 +167,3 @@ echo 'bind ether inner 0 /net/ether1' >/net/bridge0/ctl
.IR ip (3)
.SH SOURCE
.B /sys/src/9/port/devbridge.c
-.SH BUGS
-Doesn't understand IPv6.