diff --git a/ovn_bgp_agent/constants.py b/ovn_bgp_agent/constants.py
index 86841301..12a3e6c8 100644
--- a/ovn_bgp_agent/constants.py
+++ b/ovn_bgp_agent/constants.py
@@ -32,6 +32,9 @@ FRR_SOCKET_PATH = "/run/frr/"
 IP_VERSION_6 = 6
 IP_VERSION_4 = 4
 
+ARP_IPV4_PREFIX = "169.254."
+NDP_IPV6_PREFIX = "fd53:d91e:400:7f17::"
+
 BGP_MODE = 'BGP'
 EVPN_MODE = 'EVPN'
 
diff --git a/ovn_bgp_agent/tests/unit/utils/test_linux_net.py b/ovn_bgp_agent/tests/unit/utils/test_linux_net.py
index a978e405..f38ca59a 100644
--- a/ovn_bgp_agent/tests/unit/utils/test_linux_net.py
+++ b/ovn_bgp_agent/tests/unit/utils/test_linux_net.py
@@ -128,7 +128,7 @@ class TestLinuxNet(test_base.TestCase):
         linux_net.ensure_arp_ndp_enabled_for_bridge('fake-bridge', 511)
         # NOTE(ltomasbo): hardoced starting ipv4 is 192.168.0.0, and ipv6 is
         # fd53:d91e:400:7f17::0
-        ipv4 = '192.168.1.255'  # base + 511 offset
+        ipv4 = '169.254.1.255'  # base + 511 offset
         ipv6 = 'fd53:d91e:400:7f17::1ff'  # base + 5122 offset (to hex)
         calls = [mock.call(ipv4, 'fake-bridge'),
                  mock.call(ipv6, 'fake-bridge')]
@@ -144,7 +144,7 @@ class TestLinuxNet(test_base.TestCase):
         linux_net.ensure_arp_ndp_enabled_for_bridge('fake-bridge', 511, 11)
         # NOTE(ltomasbo): hardoced starting ipv4 is 192.168.0.0, and ipv6 is
         # fd53:d91e:400:7f17::0
-        ipv4 = '192.168.1.255'  # base + 511 offset
+        ipv4 = '169.254.1.255'  # base + 511 offset
         ipv6 = 'fd53:d91e:400:7f17::1ff'  # base + 5122 offset (to hex)
         calls = [mock.call(ipv4, 'fake-bridge'),
                  mock.call(ipv6, 'fake-bridge')]
diff --git a/ovn_bgp_agent/utils/linux_net.py b/ovn_bgp_agent/utils/linux_net.py
index dfe3e208..846be067 100644
--- a/ovn_bgp_agent/utils/linux_net.py
+++ b/ovn_bgp_agent/utils/linux_net.py
@@ -94,8 +94,9 @@ def delete_device(device):
 
 
 def ensure_arp_ndp_enabled_for_bridge(bridge, offset, vlan_tag=None):
-    ipv4 = "192.168." + str(int(offset / 256)) + "." + str(offset % 256)
-    ipv6 = "fd53:d91e:400:7f17::%x" % offset
+    ipv4 = constants.ARP_IPV4_PREFIX + str(int(offset / 256)) + "." + str(
+        offset % 256)
+    ipv6 = constants.NDP_IPV6_PREFIX + "%x" % offset
     try:
         ovn_bgp_agent.privileged.linux_net.add_ip_to_dev(ipv4, bridge)
     except KeyError as e: