diff --git a/ironic/drivers/modules/irmc/common.py b/ironic/drivers/modules/irmc/common.py
index c437f62e24..e808fff0b3 100644
--- a/ironic/drivers/modules/irmc/common.py
+++ b/ironic/drivers/modules/irmc/common.py
@@ -33,6 +33,14 @@ elcm = importutils.try_import('scciclient.irmc.elcm')
 scci_mod = importutils.try_import('scciclient')
 
 LOG = logging.getLogger(__name__)
+
+
+# List of xxx_interface & implementation pair which uses SNMP internally
+# and iRMC driver supports
+INTERFACE_IMPL_LIST_WITH_SNMP = {
+    'inspect_interface': {'irmc', },
+    'power_interface': {'irmc', }}
+
 REQUIRED_PROPERTIES = {
     'irmc_address': _("IP address or hostname of the iRMC. Required."),
     'irmc_username': _("Username for the iRMC with administrator privileges. "
@@ -239,6 +247,12 @@ def _parse_snmp_driver_info(node, info):
                       "v2c": snmp.SNMP_V2C,
                       "v3": snmp.SNMP_V3}
 
+    for int_name, impl_list in INTERFACE_IMPL_LIST_WITH_SNMP.items():
+        if getattr(node, int_name) in impl_list:
+            break
+    else:
+        return snmp_info
+
     if snmp_info['irmc_snmp_version'].lower() not in valid_versions:
         raise exception.InvalidParameterValue(_(
             "Value '%s' is not supported for 'irmc_snmp_version'.") %
diff --git a/ironic/tests/unit/drivers/modules/irmc/test_common.py b/ironic/tests/unit/drivers/modules/irmc/test_common.py
index 74b9dc35c4..e9373096cb 100644
--- a/ironic/tests/unit/drivers/modules/irmc/test_common.py
+++ b/ironic/tests/unit/drivers/modules/irmc/test_common.py
@@ -37,6 +37,8 @@ from ironic.tests.unit.objects import utils as obj_utils
 class BaseIRMCTest(db_base.DbTestCase):
 
     boot_interface = 'irmc-pxe'
+    inspect_interface = 'irmc'
+    power_interface = 'irmc'
 
     def setUp(self):
         super(BaseIRMCTest, self).setUp()
@@ -51,6 +53,8 @@ class BaseIRMCTest(db_base.DbTestCase):
             self.context,
             driver='irmc',
             boot_interface=self.boot_interface,
+            inspect_interface=self.inspect_interface,
+            power_interface=self.power_interface,
             driver_info=self.info,
             uuid=uuidutils.generate_uuid())
 
@@ -75,6 +79,44 @@ class IRMCValidateParametersTestCase(BaseIRMCTest):
         self.assertFalse(info['irmc_snmp_security'])
         self.assertTrue(info['irmc_verify_ca'])
 
+    @mock.patch.object(utils, 'is_fips_enabled',
+                       return_value=False, autospec=True)
+    def test_parse_snmp_driver_info_with_snmp(self, mock_check_fips):
+        test_list = [{'interfaces': [{'interface': 'inspect_interface',
+                                      'impl': 'irmc'},
+                                     {'interface': 'power_interface',
+                                      'impl': 'irmc'}],
+                      'snmp': True},
+                     {'interfaces': [{'interface': 'inspect_interface',
+                                      'impl': 'inspector'},
+                                     {'interface': 'power_interface',
+                                      'impl': 'irmc'}],
+                      'snmp': True},
+                     {'interfaces': [{'interface': 'inspect_interface',
+                                      'impl': 'irmc'},
+                                     {'interface': 'power_interface',
+                                      'impl': 'ipmitool'}],
+                      'snmp': True},
+                     {'interfaces': [{'interface': 'inspect_interface',
+                                      'impl': 'inspector'},
+                                     {'interface': 'power_interface',
+                                      'impl': 'ipmitool'}],
+                      'snmp': False}
+                     ]
+
+        for t_conf in test_list:
+            with self.subTest(t_conf=t_conf):
+                for int_conf in t_conf['interfaces']:
+                    setattr(self.node, int_conf['interface'], int_conf['impl'])
+                irmc_common.parse_driver_info(self.node)
+
+                if t_conf['snmp']:
+                    mock_check_fips.assert_called()
+                else:
+                    mock_check_fips.assert_not_called()
+
+                mock_check_fips.reset_mock()
+
     @mock.patch.object(irmc_common, 'scci_mod', spec_set=['__version__'])
     def test_parse_driver_info_snmpv3_support_auth(self, mock_scci_module):
         self.node.driver_info['irmc_snmp_version'] = 'v3'
diff --git a/releasenotes/notes/fix-irmc-enforcing-snmpv3-with-fips-e45971d363925ec3.yaml b/releasenotes/notes/fix-irmc-enforcing-snmpv3-with-fips-e45971d363925ec3.yaml
new file mode 100644
index 0000000000..8b6be9982b
--- /dev/null
+++ b/releasenotes/notes/fix-irmc-enforcing-snmpv3-with-fips-e45971d363925ec3.yaml
@@ -0,0 +1,6 @@
+---
+fixes:
+  - |
+    Fixes bug of iRMC driver in parse_driver_info where, if FIPS is enabled,
+    SNMP version is always required to be version 3 even though iRMC driver's
+    xxx_interface doesn't use SNMP actually.