diff --git a/aquatic_udp/src/lib/common/network.rs b/aquatic_udp/src/lib/common/network.rs
index 833c99f..469d658 100644
--- a/aquatic_udp/src/lib/common/network.rs
+++ b/aquatic_udp/src/lib/common/network.rs
@@ -17,7 +17,7 @@ impl ConnectionMap {
         self.0.insert((connection_id, socket_addr), valid_until);
     }
 
-    pub fn contains(&mut self, connection_id: ConnectionId, socket_addr: SocketAddr) -> bool {
+    pub fn contains(&self, connection_id: ConnectionId, socket_addr: SocketAddr) -> bool {
         self.0.contains_key(&(connection_id, socket_addr))
     }
 
diff --git a/aquatic_udp/src/lib/glommio/network.rs b/aquatic_udp/src/lib/glommio/network.rs
index 93d5f04..0a87d4b 100644
--- a/aquatic_udp/src/lib/glommio/network.rs
+++ b/aquatic_udp/src/lib/glommio/network.rs
@@ -1,3 +1,4 @@
+use std::cell::RefCell;
 use std::io::Cursor;
 use std::net::{IpAddr, SocketAddr};
 use std::rc::Rc;
@@ -5,16 +6,21 @@ use std::sync::{
     atomic::{AtomicUsize, Ordering},
     Arc,
 };
+use std::time::Duration;
 
 use futures_lite::{Stream, StreamExt};
+use glommio::enclose;
 use glommio::channels::channel_mesh::{MeshBuilder, Partial, Role, Senders};
 use glommio::channels::local_channel::{new_unbounded, LocalSender};
 use glommio::net::UdpSocket;
 use glommio::prelude::*;
+use glommio::timer::TimerActionRepeat;
 use rand::prelude::{Rng, SeedableRng, StdRng};
 
 use aquatic_udp_protocol::{IpVersion, Request, Response};
 
+use super::common::update_access_list;
+
 use crate::common::network::ConnectionMap;
 use crate::common::*;
 use crate::config::Config;
@@ -76,12 +82,37 @@ async fn read_requests(
 
     let access_list_mode = config.access_list.mode;
 
-    // Needs to be updated periodically: use timer?
-    let valid_until = ValidUntil::new(config.cleaning.max_connection_age);
-    // Needs to be updated periodically: use timer?
-    let access_list = AccessList::default();
-    // Needs to be cleaned periodically: use timer?
-    let mut connections = ConnectionMap::default();
+    let max_connection_age = config.cleaning.max_connection_age;
+    let connection_valid_until = Rc::new(RefCell::new(ValidUntil::new(max_connection_age)));
+    let access_list = Rc::new(RefCell::new(AccessList::default()));
+    let connections = Rc::new(RefCell::new(ConnectionMap::default()));
+
+    // Periodically update connection_valid_until
+    TimerActionRepeat::repeat(enclose!((connection_valid_until) move || {
+        enclose!((connection_valid_until) move || async move {
+            *connection_valid_until.borrow_mut() = ValidUntil::new(max_connection_age);
+
+            Some(Duration::from_secs(1))
+        })()
+    }));
+
+    // Periodically update access list
+    TimerActionRepeat::repeat(enclose!((config, access_list) move || {
+        enclose!((config, access_list) move || async move {
+            update_access_list(config.clone(), access_list.clone()).await;
+
+            Some(Duration::from_secs(config.cleaning.interval))
+        })()
+    }));
+
+    // Periodically clean connections
+    TimerActionRepeat::repeat(enclose!((config, connections) move || {
+        enclose!((config, connections) move || async move {
+            connections.borrow_mut().clean();
+
+            Some(Duration::from_secs(config.cleaning.interval))
+        })()
+    }));
 
     let mut buf = [0u8; 2048];
 
@@ -96,7 +127,7 @@ async fn read_requests(
                     Ok(Request::Connect(request)) => {
                         let connection_id = ConnectionId(rng.gen());
 
-                        connections.insert(connection_id, src, valid_until);
+                        connections.borrow_mut().insert(connection_id, src, connection_valid_until.borrow().to_owned());
 
                         let response = Response::Connect(ConnectResponse {
                             connection_id,
@@ -106,8 +137,8 @@ async fn read_requests(
                         local_sender.try_send((response, src)).unwrap();
                     }
                     Ok(Request::Announce(request)) => {
-                        if connections.contains(request.connection_id, src) {
-                            if access_list.allows(access_list_mode, &request.info_hash.0) {
+                        if connections.borrow().contains(request.connection_id, src) {
+                            if access_list.borrow().allows(access_list_mode, &request.info_hash.0) {
                                 let request_consumer_index =
                                     (request.info_hash.0[0] as usize) % config.request_workers;
 
@@ -128,7 +159,7 @@ async fn read_requests(
                         }
                     }
                     Ok(Request::Scrape(request)) => {
-                        if connections.contains(request.connection_id, src) {
+                        if connections.borrow().contains(request.connection_id, src) {
                             let response = Response::Error(ErrorResponse {
                                 transaction_id: request.transaction_id,
                                 message: "Scrape requests not supported".into(),
@@ -146,7 +177,7 @@ async fn read_requests(
                             err,
                         } = err
                         {
-                            if connections.contains(connection_id, src) {
+                            if connections.borrow().contains(connection_id, src) {
                                 let response = ErrorResponse {
                                     transaction_id,
                                     message: err.right_or("Parse error").into(),