diff --git a/harmony/src/domain/topology/ha_cluster.rs b/harmony/src/domain/topology/ha_cluster.rs
index 5ceaa8a..d7fc461 100644
--- a/harmony/src/domain/topology/ha_cluster.rs
+++ b/harmony/src/domain/topology/ha_cluster.rs
@@ -124,6 +124,9 @@ impl DhcpServer for DummyInfra {
     async fn set_filename(&self, _filename: &str) -> Result<(), ExecutorError> {
         unimplemented!("{}", UNIMPLEMENTED_DUMMY_INFRA)
     }
+    async fn set_filename64(&self, _filename: &str) -> Result<(), ExecutorError> {
+        unimplemented!("{}", UNIMPLEMENTED_DUMMY_INFRA)
+    }
     fn get_ip(&self) -> IpAddress {
         unimplemented!("{}", UNIMPLEMENTED_DUMMY_INFRA)
     }
diff --git a/harmony/src/domain/topology/network.rs b/harmony/src/domain/topology/network.rs
index cd013be..d875b08 100644
--- a/harmony/src/domain/topology/network.rs
+++ b/harmony/src/domain/topology/network.rs
@@ -49,6 +49,7 @@ pub trait DhcpServer: Send + Sync {
     async fn set_next_server(&self, ip: IpAddress) -> Result<(), ExecutorError>;
     async fn set_boot_filename(&self, boot_filename: &str) -> Result<(), ExecutorError>;
     async fn set_filename(&self, filename: &str) -> Result<(), ExecutorError>;
+    async fn set_filename64(&self, filename64: &str) -> Result<(), ExecutorError>;
     fn get_ip(&self) -> IpAddress;
     fn get_host(&self) -> LogicalHost;
     async fn commit_config(&self) -> Result<(), ExecutorError>;
diff --git a/harmony/src/infra/opnsense/dhcp.rs b/harmony/src/infra/opnsense/dhcp.rs
index 6fd0be4..d9a887e 100644
--- a/harmony/src/infra/opnsense/dhcp.rs
+++ b/harmony/src/infra/opnsense/dhcp.rs
@@ -79,4 +79,14 @@ impl DhcpServer for OPNSenseFirewall {
 
         Ok(())
     }
+
+    async fn set_filename64(&self, filename: &str) -> Result<(), ExecutorError> {
+        {
+            let mut writable_opnsense = self.opnsense_config.write().await;
+            writable_opnsense.dhcp().set_filename64(filename);
+            debug!("OPNsense dhcp server set filename {filename}");
+        }
+
+        Ok(())
+    }
 }
diff --git a/harmony/src/modules/dhcp.rs b/harmony/src/modules/dhcp.rs
index f4b5472..db87c81 100644
--- a/harmony/src/modules/dhcp.rs
+++ b/harmony/src/modules/dhcp.rs
@@ -19,6 +19,7 @@ pub struct DhcpScore {
     pub next_server: Option<IpAddress>,
     pub boot_filename: Option<String>,
     pub filename: Option<String>,
+    pub filename64: Option<String>,
     pub filename_ipxe: Option<String>,
 }
 
@@ -139,9 +140,22 @@ impl DhcpInterpret {
             None => Outcome::noop(),
         };
 
+        let filename64_outcome = match &self.score.filename64 {
+            Some(filename64) => {
+                let dhcp_server = Arc::new(topology.dhcp_server.clone());
+                dhcp_server.set_filename64(&filename64).await?;
+                Outcome::new(
+                    InterpretStatus::SUCCESS,
+                    format!("Dhcp Interpret Set filename64 to {filename64}"),
+                )
+            }
+            None => Outcome::noop(),
+        };
+
         if next_server_outcome.status == InterpretStatus::NOOP
             && boot_filename_outcome.status == InterpretStatus::NOOP
             && filename_outcome.status == InterpretStatus::NOOP
+            && filename64_outcome.status == InterpretStatus::NOOP
         {
             return Ok(Outcome::noop());
         }
@@ -149,8 +163,8 @@ impl DhcpInterpret {
         Ok(Outcome::new(
             InterpretStatus::SUCCESS,
             format!(
-                "Dhcp Interpret Set next boot to [{:?}], boot_filename to [{:?}], filename to [{:?}]",
-                self.score.boot_filename, self.score.boot_filename, self.score.filename
+                "Dhcp Interpret Set next boot to [{:?}], boot_filename to [{:?}], filename to [{:?}], filename64 to [{:?}]",
+                self.score.boot_filename, self.score.boot_filename, self.score.filename, self.score.filename64
             ),
         ))
     }
diff --git a/harmony/src/modules/okd/bootstrap_dhcp.rs b/harmony/src/modules/okd/bootstrap_dhcp.rs
index e9e74c8..0439f41 100644
--- a/harmony/src/modules/okd/bootstrap_dhcp.rs
+++ b/harmony/src/modules/okd/bootstrap_dhcp.rs
@@ -41,8 +41,9 @@ impl OKDBootstrapDhcpScore {
                 // router address, this is leaking implementation details
                 Some(topology.router.get_gateway()),
                 Some("bootx64.efi".to_string()),
-                Some(format!("{}:8080/boot.ipxe", topology.router.get_gateway())),
                 Some("undionly.kpxe".to_string()),
+                Some("ipxe.efi".to_string()),
+                Some(format!("{}:8080/boot.ipxe", topology.router.get_gateway())),
             ),
         }
     }
diff --git a/harmony/src/modules/okd/dhcp.rs b/harmony/src/modules/okd/dhcp.rs
index e5cd346..627cf67 100644
--- a/harmony/src/modules/okd/dhcp.rs
+++ b/harmony/src/modules/okd/dhcp.rs
@@ -35,6 +35,7 @@ impl OKDDhcpScore {
                 boot_filename: None,
                 filename_ipxe: Some(format!("{}:8080/boot.ipxe", topology.router.get_gateway())),
                 filename: Some("undionly.kpxe".to_string()),
+                filename64: Some("ipxe.efi".to_string()),
             },
         }
     }