diff --git a/northd/ovn-northd.c b/northd/ovn-northd.c
index 352f135f8..f0769142e 100644
--- a/northd/ovn-northd.c
+++ b/northd/ovn-northd.c
@@ -6638,6 +6638,12 @@ build_lswitch_arp_nd_responder_lb(
                     struct ovn_lb *lb, struct hmap *lflows,
                     struct ds *match, struct ds *actions);
 
+/* Logical switch ingress table 14 and 15: DHCP options and response
+ * priority 100 flows. */
+static void
+build_lswitch_dhcp_response_op(
+                    struct ovn_port *op, struct hmap *lflows);
+
 /*
 * Do not remove this comment - it is here as a marker to
 * make diffs readable.
@@ -6699,55 +6705,11 @@ build_lswitch_flows(struct hmap *datapaths, struct hmap *ports,
                 lb, lflows, &match, &actions);
     }
 
-
-    /* Logical switch ingress table 14 and 15: DHCP options and response
-     * priority 100 flows. */
     HMAP_FOR_EACH (op, key_node, ports) {
-        if (!op->nbsp) {
-           continue;
-        }
-
-        if (!lsp_is_enabled(op->nbsp) || !strcmp(op->nbsp->type, "router")) {
-            /* Don't add the DHCP flows if the port is not enabled or if the
-             * port is a router port. */
-            continue;
-        }
-
-        if (!op->nbsp->dhcpv4_options && !op->nbsp->dhcpv6_options) {
-            /* CMS has disabled both native DHCPv4 and DHCPv6 for this lport.
-             */
-            continue;
-        }
-
-        bool is_external = lsp_is_external(op->nbsp);
-        if (is_external && (!op->od->n_localnet_ports ||
-                            !op->nbsp->ha_chassis_group)) {
-            /* If it's an external port and there are no localnet ports
-             * and if it doesn't belong to an HA chassis group ignore it. */
-            continue;
-        }
-
-        for (size_t i = 0; i < op->n_lsp_addrs; i++) {
-            if (is_external) {
-                for (size_t j = 0; j < op->od->n_localnet_ports; j++) {
-                    build_dhcpv4_options_flows(
-                        op, &op->lsp_addrs[i],
-                        op->od->localnet_ports[j]->json_key, is_external,
-                        lflows);
-                    build_dhcpv6_options_flows(
-                        op, &op->lsp_addrs[i],
-                        op->od->localnet_ports[j]->json_key, is_external,
-                        lflows);
-                }
-            } else {
-                build_dhcpv4_options_flows(op, &op->lsp_addrs[i], op->json_key,
-                                           is_external, lflows);
-                build_dhcpv6_options_flows(op, &op->lsp_addrs[i], op->json_key,
-                                           is_external, lflows);
-            }
-        }
+        build_lswitch_dhcp_response_op(op, lflows);
     }
 
+
     /* Logical switch ingress table 17 and 18: DNS lookup and response
      * priority 100 flows.
      */
@@ -7389,6 +7351,53 @@ build_lswitch_arp_nd_responder_lb(
     }
 }
 
+static void
+build_lswitch_dhcp_response_op(
+                    struct ovn_port *op, struct hmap *lflows)
+{
+    if (op->nbsp) {
+        if (!lsp_is_enabled(op->nbsp) || !strcmp(op->nbsp->type, "router")) {
+            /* Don't add the DHCP flows if the port is not enabled or if the
+             * port is a router port. */
+            return;
+        }
+
+        if (!op->nbsp->dhcpv4_options && !op->nbsp->dhcpv6_options) {
+            /* CMS has disabled both native DHCPv4 and DHCPv6 for this lport.
+             */
+            return;
+        }
+
+        bool is_external = lsp_is_external(op->nbsp);
+        if (is_external && (!op->od->n_localnet_ports ||
+                            !op->nbsp->ha_chassis_group)) {
+            /* If it's an external port and there are no localnet ports
+             * and if it doesn't belong to an HA chassis group ignore it. */
+            return;
+        }
+
+        for (size_t i = 0; i < op->n_lsp_addrs; i++) {
+            if (is_external) {
+                for (size_t j = 0; j < op->od->n_localnet_ports; j++) {
+                    build_dhcpv4_options_flows(
+                        op, &op->lsp_addrs[i],
+                        op->od->localnet_ports[j]->json_key, is_external,
+                        lflows);
+                    build_dhcpv6_options_flows(
+                        op, &op->lsp_addrs[i],
+                        op->od->localnet_ports[j]->json_key, is_external,
+                        lflows);
+                }
+            } else {
+                build_dhcpv4_options_flows(op, &op->lsp_addrs[i], op->json_key,
+                                           is_external, lflows);
+                build_dhcpv6_options_flows(op, &op->lsp_addrs[i], op->json_key,
+                                           is_external, lflows);
+            }
+        }
+    }
+}
+
 /* Returns a string of the IP address of the router port 'op' that
  * overlaps with 'ip_s".  If one is not found, returns NULL.
  *
