Fix to use IPv6 linklocal address as snmp agent address

config/main.py

@@ -3235,7 +3235,10 @@ def add_snmp_agent_address(ctx, agentip, port, vrf):
     """Add the SNMP agent listening IP:Port%Vrf configuration"""
 
     #Construct SNMP_AGENT_ADDRESS_CONFIG table key in the format ip|<port>|<vrf>
-    if not clicommon.is_ipaddress(agentip):
+    # Link local IP address should be provided along with zone id
+    # <link_local_ip>%<zone_id> for ex fe80::1%eth0
+    ip_addr = agentip.split('%')[0]
+    if not clicommon.is_ipaddress(ip_addr):
         click.echo("Invalid IP address")
         return False
     config_db = ctx.obj['db']
@@ -3245,7 +3248,7 @@ def add_snmp_agent_address(ctx, agentip, port, vrf):
             click.echo("ManagementVRF is Enabled. Provide vrf.")
             return False
     found = 0
-    ip = ipaddress.ip_address(agentip)
+    ip = ipaddress.ip_address(ip_addr)
     for intf in netifaces.interfaces():
         ipaddresses = netifaces.ifaddresses(intf)
         if ip_family[ip.version] in ipaddresses:

tests/config_snmp_test.py

@@ -877,6 +877,34 @@ def test_config_snmp_community_add_new_community_with_invalid_type_yang_validati
         assert result.exit_code != 0
         assert 'SNMP community configuration failed' in result.output
 
+    @patch('netifaces.interfaces', mock.Mock(return_value=['eth0']))
+    @patch('netifaces.ifaddresses', mock.Mock(return_value={2:
+                                              [{'addr': '10.1.0.32', 'netmask': '255.255.255.0',
+                                                'broadcast': '10.1.0.255'}],
+                                                10: [{'addr': 'fe80::1', 'netmask': 'ffff:ffff:ffff:ffff::/64'}]}))
+    @patch('os.system', mock.Mock(return_value=0))
+    def test_config_snmpagentaddress_add_linklocal(self):
+        db = Db()
+        obj = {'db': db.cfgdb}
+        runner = CliRunner()
+        runner.invoke(config.config.commands["snmpagentaddress"].commands["add"], ["fe80::1%eth0"], obj=obj)
+        assert ('fe80::1%eth0', '', '') in db.cfgdb.get_keys('SNMP_AGENT_ADDRESS_CONFIG')
+        assert db.cfgdb.get_entry("SNMP_AGENT_ADDRESS_CONFIG", "fe80::1%eth0||") == {}
+
+    @patch('netifaces.interfaces', mock.Mock(return_value=['eth0']))
+    @patch('netifaces.ifaddresses', mock.Mock(return_value={2:
+                                              [{'addr': '10.1.0.32', 'netmask': '255.255.255.0',
+                                                'broadcast': '10.1.0.255'}],
+                                                10: [{'addr': 'fe80::1', 'netmask': 'ffff:ffff:ffff:ffff::/64'}]}))
+    @patch('os.system', mock.Mock(return_value=0))
+    def test_config_snmpagentaddress_add_ipv4(self):
+        db = Db()
+        obj = {'db': db.cfgdb}
+        runner = CliRunner()
+        runner.invoke(config.config.commands["snmpagentaddress"].commands["add"], ["10.1.0.32"], obj=obj)
+        assert ('10.1.0.32', '', '') in db.cfgdb.get_keys('SNMP_AGENT_ADDRESS_CONFIG')
+        assert db.cfgdb.get_entry("SNMP_AGENT_ADDRESS_CONFIG", "i10.1.0.32||") == {}
+
     @classmethod
     def teardown_class(cls):
         print("TEARDOWN")