diff --git a/src/sonic_ax_impl/mibs/ietf/rfc4292.py b/src/sonic_ax_impl/mibs/ietf/rfc4292.py
index 487d14855d91..a07c7159d5da 100644
--- a/src/sonic_ax_impl/mibs/ietf/rfc4292.py
+++ b/src/sonic_ax_impl/mibs/ietf/rfc4292.py
@@ -32,7 +32,8 @@ def reinit_data(self):
         ## Collect only ipv4 lo interfaces
         for loopback in loopbacks:
             lostr = loopback.decode()
-            loip = lostr[len("INTF_TABLE:lo:"):]
+            loipmask = lostr[len("INTF_TABLE:lo:"):]
+            loip = loipmask.split('/')[0]
             ipa = ipaddress.ip_address(loip)
             if isinstance(ipa, ipaddress.IPv4Address):
                 self.loips[loip] = ipa
diff --git a/tests/mock_tables/appl_db.json b/tests/mock_tables/appl_db.json
index 2bbdf915ce1f..646e081042d9 100644
--- a/tests/mock_tables/appl_db.json
+++ b/tests/mock_tables/appl_db.json
@@ -675,11 +675,11 @@
     "oper_status": "up",
     "mtu": "9216"
   },
-  "INTF_TABLE:lo:10.1.0.32": {
+  "INTF_TABLE:lo:10.1.0.32/32": {
     "scope": "global",
     "family": "IPv4"
   },
-  "INTF_TABLE:lo:fc00:1::32": {
+  "INTF_TABLE:lo:fc00:1::32/128": {
     "scope": "global",
     "family": "IPv6"
   }