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-rw-r--r--src/etc/sysctl.d/30-vyos-router.conf8
1 files changed, 8 insertions, 0 deletions
diff --git a/src/etc/sysctl.d/30-vyos-router.conf b/src/etc/sysctl.d/30-vyos-router.conf
index 1c9b8999f..67d96969e 100644
--- a/src/etc/sysctl.d/30-vyos-router.conf
+++ b/src/etc/sysctl.d/30-vyos-router.conf
@@ -105,3 +105,11 @@ net.core.rps_sock_flow_entries = 32768
net.core.default_qdisc=fq_codel
net.ipv4.tcp_congestion_control=bbr
+# VRF - Virtual routing and forwarding
+# When net.vrf.strict_mode=0 (default) it is possible to associate multiple
+# VRF devices to the same table. Conversely, when net.vrf.strict_mode=1 a
+# table can be associated to a single VRF device.
+#
+# A VRF table can be used by the VyOS CLI only once (ensured by verify()),
+# this simply adds an additional Kernel safety net
+net.vrf.strict_mode=1