netdev - RE: Bridging behavior apparently changed around the Fedora 14 time

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Message-ID: <925A849792280C4E80C5461017A4B8A2A040F7@mail733.InfraSupportEtc.com>
Date:	Mon, 11 Jul 2011 16:16:40 -0500
From:	"Greg Scott" <GregScott@...rasupport.com>
To:	"Stephen Hemminger" <shemminger@...tta.com>
Cc:	<netdev@...r.kernel.org>,
	"Lynn Hanson" <LynnHanson@...anhills.org>,
	"Joe Whalen" <JoeWhalen@...anhills.org>
Subject: RE: Bridging behavior apparently changed around the Fedora 14 time

> The bridge code calls dev_set_promiscuity() which should
> be changing device mode. But it could be that netdev core is 
> resetting/changing/breaking that.

Is it supposed to change the physical ethnn devices or the br device?

Here is what I do to set up the bridging. I do it myself right in the
script so I can control all the details.

.
.
.
#
# Setup bridging
#

echo "Setting up bridge $BR_IFACE to bridge $INET_IFACE with
$TRUSTED1_IFACE"

$BRCTL addbr $BR_IFACE
$BRCTL addif $BR_IFACE $INET_IFACE
$BRCTL addif $BR_IFACE $TRUSTED1_IFACE

echo "  Adding $BR_IP_SLASH and $TRUSTED1_IP_SLASH IP Addresses to
$BR_IFACE"
/sbin/ip addr add $BR_IP_SLASH broadcast $BR_BCAST_ADDRESS dev $BR_IFACE
/sbin/ip addr add $TRUSTED1_IP_SLASH broadcast $TRUSTED1_BCAST_ADDRESS
dev $BR_IFACE
/sbin/ip link set $BR_IFACE up

echo "  Removing $INET_IP_SLASH and $TRUSTED1_IP_SLASH from $INET_IFACE
and $TRUSTED1_IFACE"
/sbin/ip addr del $INET_IP_SLASH dev $INET_IFACE
/sbin/ip addr del $INET_IP_SLASH dev $INET_IFACE
/sbin/ip addr del $TRUSTED1_IP_SLASH dev $TRUSTED1_IFACE
/sbin/ip addr del $TRUSTED1_IP_SLASH dev $TRUSTED1_IFACE

echo "  Putting $BR_IFACE into promiscuous mode"
# This fixes a bug forwarding packets bound for external IP Addresses
# from the private LAN.

ip link set $BR_IFACE promisc on

#
# Set up aliases for public IP addresses
#
.
.
.


- Greg


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