Change the script a bit to allow the creation of 'brouted' bridges.

To do this you need to have each top-end connected as well.
IP can be routed and other protocols get bridged..
Also useful when bridgeing two networks while merging them as
machines will work with both old and new netmasks. (well mostly).

1 files changed, 17 insertions, 11 deletions

diff --git a/share/examples/netgraph/ether.bridge b/share/examples/netgraph/ether.bridge
index f68d4cd..acc4a4d 100644
--- a/share/examples/netgraph/ether.bridge
+++ b/share/examples/netgraph/ether.bridge
@@ -1,6 +1,5 @@
 #!/bin/sh
 # $FreeBSD$
-
 # This script sets up an Ethernet bridging network across multiple
 # Ethernet interfaces using the ng_bridge(4) and ng_ether(4) netgraph
 # node types.
@@ -12,7 +11,7 @@
 # 1. Give your bridging network a name by editing the definition of
 #    ${BRIDGE_NAME} below. It must be a valid netgraph node name.
 #
-# 2. Edit the definitions of ${BRIDGE_IFACES} and ${LOCAL_IFACE}
+# 2. Edit the definitions of ${BRIDGE_IFACES} and ${LOCAL_IFACES}
 #    as described below to define your bridging interfaces.
 #
 # 3. Run this script with "start" as the command line argument.
@@ -25,6 +24,11 @@
 #
 # To run multiple independent bridging networks, create multiple
 # copies of this script with different variable definitions.
+#
+# To make a "brouted" network, with IP being routed and other protocols being
+# bridged, add all the interface in the BRIDGE_IFACES to the LOCAL_IFACES.
+# I you just want a normal bridge, just one will surfice.
+# in some cases you may want some mixture. 
 # 
 
 # Give each bridging network a unique name here
@@ -33,13 +37,13 @@ BRIDGE_NAME="bnet0"
 
 # List the names of the interfaces that you want to bridge across
 # here in ${BRIDGE_IFACES}. If you want to include the local host
-# machine as well then set ${LOCAL_IFACE} as well (it may also be
+# machine as well then set ${LOCAL_IFACES} as well (they may also be
 # listed in ${BRIDGE_IFACES}). Of course, any ${LOCAL_IFACE} must
 # be ifconfig(8)ured separately. If you don't want a ${LOCAL_IFACE}
 # then leave it defined as the emtpy string.
 
-BRIDGE_IFACES="ed0 fxp0 fxp1"
-LOCAL_IFACE="fxp0"
+BRIDGE_IFACES="de0 fxp0 fxp1"
+LOCAL_IFACES="fxp0 fxp1"
 
 ####################################################################
 #### Everything below this point should not need to be modified ####
@@ -81,7 +85,7 @@ bridge_start() {
 	bridge_stop
 
 	# Verify all interfaces exist
-	for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACE}; do
+	for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do
 		if ngctl info ${ETHER}: >/dev/null 2>&1; then
 		else
 			echo "Error: interface ${ETHER} does not exist"
@@ -106,10 +110,11 @@ bridge_start() {
 	done
 
 	# Hook up local interface, if any
-	if [ "${LOCAL_IFACE}" != "" ]; then
+	for LOCAL_IFACE in ${LOCAL_IFACES}; do
 		ngctl connect ${LOCAL_IFACE}: ${BRIDGE_NAME}: \
 		    upper link${LINKNUM} || exit 1
-	fi
+		LINKNUM=`expr ${LINKNUM} + 1`
+	done
 
 	# Set all interfaces in promiscuous mode and don't overwrite src addr
 	for ETHER in ${BRIDGE_IFACES}; do
@@ -121,7 +126,7 @@ bridge_start() {
 # Stop routine
 bridge_stop() {
 	ngctl kill ${BRIDGE_NAME}: >/dev/null 2>&1
-	for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACE}; do
+	for ETHER in ${BRIDGE_IFACES} ${LOCAL_IFACES}; do
 		ngctl kill ${ETHER}: >/dev/null 2>&1
 	done
 }
@@ -141,10 +146,11 @@ bridge_stats() {
 		bridge_linkstats ${LINKNUM}
 		LINKNUM=`expr ${LINKNUM} + 1`
 	done
-	if [ "${LOCAL_IFACE}" != "" ]; then
+	for LOCAL_IFACE in ${LOCAL_IFACES}; do
 		echo "Local host interface ${LOCAL_IFACE}:"
 		bridge_linkstats ${LINKNUM}
-	fi
+		LINKNUM=`expr ${LINKNUM} + 1`
+	done
 }
 
 # Main entry point