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interfaces: get pfsync0 mtu from real interface

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in some situation, like OpenStack, mtu is less then default (1500) and
it cause replication issue
we have noticed on a low used firewall with 2/3k State table size more
then 100k State table size on the backup server

copy mtu from real interface fix this issue
This commit is contained in:
Giulio Cervera 2018-08-27 15:11:15 +02:00 committed by Franco Fichtner
parent 25f9c31238
commit 15acbad935
1 changed files with 3 additions and 0 deletions
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3
src/etc/inc/interfaces.inc
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@ -1525,6 +1525,8 @@ function interfaces_carp_setup($verbose = false)
{
global $config;
$intf_stats = legacy_interfaces_details();
if ($verbose) {
echo 'Configuring CARP settings...';
flush();
@ -1542,6 +1544,7 @@ function interfaces_carp_setup($verbose = false)
}
mwexec("/sbin/ifconfig pfsync0 syncdev {$carp_sync_int} {$syncpeer} up", false);
mwexec("/sbin/ifconfig pfsync0 mtu {$intf_stats[$carp_sync_int]['mtu']}", false);
} else {
mwexec("/sbin/ifconfig pfsync0 -syncdev -syncpeer down", false);
}