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networkd: turn UnicastFlood on by default 

Looking at the kernel commit, "on" seems to be the default value:
commit 867a59436fc35593ae0e0efcd56cc6d2f8506586
Author: Vlad Yasevich <vyasevic@redhat.com>
Date:   Wed Jun 5 10:08:01 2013 -0400

    bridge: Add a flag to control unicast packet flood.

    Add a flag to control flood of unicast traffic.  By default, flood is
    on and the bridge will flood unicast traffic if it doesn't know
    the destination.  When the flag is turned off, unicast traffic
    without an FDB will not be forwarded to the specified port.

... and it seems to be the reasonable thing to do by default.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2015-07-24 23:04:57 -04:00
parent 84c3409631
commit 072f9e4af4
2 changed files with 4 additions and 2 deletions
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5
man/systemd.network.xml
View File

@ -672,8 +672,9 @@
<varlistentry>
<term><varname>UnicastFlood=</varname></term>
<listitem>
<para>A boolean. UnicastFlood configures whether a given port will flood
unicast traffic for which there is no FDB entry. Defaults to off.
<para>A boolean. Controls whether the bridge should flood
traffic for which an FDB entry is missing and the destination
is unknown through this port. Defaults to on.
</para>
</listitem>
</varlistentry>

1
src/network/networkd-network.c
View File

@ -108,6 +108,7 @@ static int network_load_one(Manager *manager, const char *filename) {
network->dhcp_client_identifier = DHCP_CLIENT_ID_DUID;
network->use_bpdu = true;
network->unicast_flood = true;
network->llmnr = LLMNR_SUPPORT_YES;