The example uses a connection to two ISP. Asymmetric routing is when the flow of packets in one direction passes through a different router than that used for the return path.
In this configuration, when the flows is asymmetric, for the translation to work properly, you must disable the cache.
cat /etc/conntrackd/conntrackd.conf
Sync {
Mode FTFW {
DisableExternalCache On
}Need a feature to disable the cache. I use temporary workaround:
--- ConntrackSync.pm.old 2018-12-21 05:40:24.000000000 +0500 +++ ConntrackSync.pm 2018-12-31 15:52:28.078441250 +0500 @@ -57,7 +57,7 @@ my $GENERAL_SECTION_START = "General {\n"; my $SYNC_SECTION_START = "Sync {\n"; -my $MODE_SECTION_START = "\tMode FTFW {\n"; +my $MODE_SECTION_START = "\tMode FTFW {\n\t\tDisableExternalCache On\n"; my $MULTICAST_SECTION_START = "\tMulticast {\n"; my $UNICAST_SECTION_START = "\tUDP {\n"; my $OPTIONS_SECTION_START = "\tOptions {\n";