ref: e31934f9f317205097f09b165bcaed2e5d00aaa1
parent: 3e48a666658b2636f11e28dc589180102674d343
author: cinap_lenrek <[email protected]>
date: Sun Dec 17 15:51:41 EST 2017
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).
--- 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 @@
.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 @@
.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 @@
.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 @@
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 @@
.IR ip (3)
.SH SOURCE
.B /sys/src/9/port/devbridge.c
-.SH BUGS
-Doesn't understand IPv6.