Change the loopback mask from /8 to /16

sonic-net · Sep 15, 2020 · 9b41045 · 9b41045
1 parent 3a901ee
commit 9b41045
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Showing 3 changed files with 11 additions and 2 deletions.
diff --git a/files/image_config/interfaces/interfaces.j2 b/files/image_config/interfaces/interfaces.j2
@@ -13,7 +13,7 @@ iface mgmt
 # The loopback network interface for mgmt VRF that is required for applications like NTP
     up ip link add lo-m type dummy
     up ip link set dev lo-m master mgmt
-    up ip addr add 127.0.0.1/8 dev lo-m
+    up ip addr add 127.0.0.1/16 dev lo-m
     up ip link set lo-m up
     down ip link delete dev lo-m
 {% endif %}
@@ -22,6 +22,9 @@ iface mgmt
 # The loopback network interface
 auto lo
 iface lo inet loopback
+   address 127.0.0.1
+   netmask 255.255.0.0
+   post-up ip addr del 127.0.0.1/8 dev lo
 {% endblock loopback %}
 {% block mgmt_interface %}
 

diff --git a/src/sonic-config-engine/tests/sample_output/interfaces b/src/sonic-config-engine/tests/sample_output/interfaces
@@ -6,6 +6,9 @@
 # The loopback network interface
 auto lo
 iface lo inet loopback
+   address 127.0.0.1
+   netmask 255.255.0.0
+   post-up ip addr del 127.0.0.1/8 dev lo
 
 # The management network interface
 auto eth0

diff --git a/src/sonic-config-engine/tests/sample_output/mvrf_interfaces b/src/sonic-config-engine/tests/sample_output/mvrf_interfaces
@@ -9,12 +9,15 @@ iface mgmt
 # The loopback network interface for mgmt VRF that is required for applications like NTP
     up ip link add lo-m type dummy
     up ip link set dev lo-m master mgmt
-    up ip addr add 127.0.0.1/8 dev lo-m
+    up ip addr add 127.0.0.1/16 dev lo-m
     up ip link set lo-m up
     down ip link delete dev lo-m
 # The loopback network interface
 auto lo
 iface lo inet loopback
+   address 127.0.0.1
+   netmask 255.255.0.0
+   post-up ip addr del 127.0.0.1/8 dev lo
 
 # The management network interface
 auto eth0