diff --git a/tests/integration/account/test_account.py b/tests/integration/account/test_account.py
index f1fae5dc..c9d5399d 100644
--- a/tests/integration/account/test_account.py
+++ b/tests/integration/account/test_account.py
@@ -1,3 +1,5 @@
+import json
+
 import pytest
 
 from tests.integration.helpers import (
@@ -202,14 +204,77 @@ def test_account_login_view(get_login_id):
     assert_headers_in_lines(headers, lines)
 
 
+@pytest.fixture
 def test_account_setting_view():
-    res = exec_test_command(
+    expected_headers = [
+        "longview_subscription",
+        "network_helper",
+        "interfaces_for_new_linodes",
+    ]
+
+    settings_text = exec_test_command(
         BASE_CMDS["account"] + ["settings", "--text", "--delimiter=,"]
     )
-    lines = res.splitlines()
+    lines = settings_text.splitlines()
+    headers = lines[0].split(",")
 
-    headers = ["longview_subscription", "network_helper"]
-    assert_headers_in_lines(headers, lines)
+    for expected in expected_headers:
+        assert (
+            expected in headers
+        ), f"Expected header '{expected}' not found in CLI output"
+
+    # Fetch current interfaces setting
+    settings_json = exec_test_command(
+        BASE_CMDS["account"] + ["settings", "--json"]
+    )
+    original_value = json.loads(settings_json)[0]["interfaces_for_new_linodes"]
+
+    yield original_value
+
+    # Restore original setting after test
+    exec_test_command(
+        BASE_CMDS["account"]
+        + [
+            "settings-update",
+            "--interfaces_for_new_linodes",
+            original_value,
+        ]
+    )
+
+
+def test_update_interfaces_setting(test_account_setting_view):
+    original_value = test_account_setting_view
+
+    # Define valid values different from the original
+    valid_options = [
+        "legacy_config_only",
+        "legacy_config_default_but_linode_allowed",
+        "linode_default_but_legacy_config_allowed",
+        "linode_only",
+    ]
+
+    # Select a different value for testing
+    new_value = next(val for val in valid_options if val != original_value)
+
+    # Update the setting
+    exec_test_command(
+        BASE_CMDS["account"]
+        + [
+            "settings-update",
+            "--interfaces_for_new_linodes",
+            new_value,
+        ]
+    )
+
+    # Verify the setting was updated
+    updated_json = exec_test_command(
+        BASE_CMDS["account"] + ["settings", "--json"]
+    )
+    updated_value = json.loads(updated_json)[0]["interfaces_for_new_linodes"]
+
+    assert (
+        updated_value == new_value
+    ), f"Expected {new_value}, got {updated_value}"
 
 
 def test_user_list():
diff --git a/tests/integration/networking/test_networking.py b/tests/integration/networking/test_networking.py
index 083dd040..f5490720 100644
--- a/tests/integration/networking/test_networking.py
+++ b/tests/integration/networking/test_networking.py
@@ -49,9 +49,16 @@ def has_shared_ip(linode_id: int, ip: str) -> bool:
             ["linode-cli", "linodes", "ips-list", "--json", linode_id]
         )
     )[0]["ipv4"]["shared"]
+    for entry in shared_ips:
+        if entry["address"] == ip:
+            # Validate presence and type of interface_id
+            assert "interface_id" in entry
+            assert entry["interface_id"] is None or isinstance(
+                entry["interface_id"], int
+            )
+            return True
 
-    # Ensure there is a matching shared IP
-    return len([v for v in shared_ips if v["address"] == ip]) > 0
+    return False
 
 
 def test_display_ips_for_available_linodes(test_linode_id):
@@ -92,15 +99,24 @@ def test_view_an_ip_address(test_linode_id):
         BASE_CMDS["networking"]
         + [
             "ip-view",
-            "--text",
-            "--no-headers",
-            "--delimiter",
-            ",",
+            "--json",
             linode_ipv4,
         ]
     )
 
-    assert re.search(r"^[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}", result)
+    data = json.loads(result)
+    if isinstance(data, list):
+        data = data[0]
+    # Validate that the address is a proper IPv4 address
+    assert re.match(r"^[0-9]{1,3}(\.[0-9]{1,3}){3}$", data["address"])
+
+    # Validate that interface_id is present and either None or int
+    assert (
+        "interface_id" in data
+    ), "`interface_id` field missing in IP view response"
+    assert data["interface_id"] is None or isinstance(
+        data["interface_id"], int
+    ), f"`interface_id` is not None or int: {data['interface_id']}"
 
 
 def test_allocate_additional_private_ipv4_address(test_linode_id):