diff --git a/crates/papyrus_network/src/network_manager/test_utils.rs b/crates/papyrus_network/src/network_manager/test_utils.rs
index 59f435bfac..1c23c4bee5 100644
--- a/crates/papyrus_network/src/network_manager/test_utils.rs
+++ b/crates/papyrus_network/src/network_manager/test_utils.rs
@@ -11,7 +11,6 @@ use libp2p::core::multiaddr::Protocol;
 use libp2p::gossipsub::SubscriptionError;
 use libp2p::identity::Keypair;
 use libp2p::{Multiaddr, PeerId};
-use papyrus_common::tcp::find_n_free_ports;
 use starknet_sequencer_infra::test_utils::AvailablePorts;
 
 use super::{
@@ -149,8 +148,11 @@ where
     Ok(TestSubscriberChannels { subscriber_channels, mock_network })
 }
 
-pub fn create_connected_network_configs(n: usize) -> Vec<NetworkConfig> {
-    let mut ports = find_n_free_ports(n);
+pub fn create_connected_network_configs(
+    n: usize,
+    available_ports: &mut AvailablePorts,
+) -> Vec<NetworkConfig> {
+    let mut ports = available_ports.get_next_ports(n);
     let port0 = ports.remove(0);
 
     let secret_key0 = [1u8; 32];
@@ -178,8 +180,6 @@ pub fn create_connected_network_configs(n: usize) -> Vec<NetworkConfig> {
     configs
 }
 
-// TODO(Tsabary): remove #[allow(unused_variables)].
-#[allow(unused_variables)]
 pub fn create_network_configs_connected_to_broadcast_channels<T>(
     n_configs: usize,
     topic: Topic,
@@ -191,7 +191,7 @@ where
 {
     const BUFFER_SIZE: usize = 1000;
 
-    let mut channels_configs = create_connected_network_configs(n_configs + 1);
+    let mut channels_configs = create_connected_network_configs(n_configs + 1, available_ports);
     let broadcast_channels = channels_configs.remove(0);
 
     let mut channels_network_manager = NetworkManager::new(broadcast_channels, None);
diff --git a/crates/starknet_integration_tests/src/flow_test_setup.rs b/crates/starknet_integration_tests/src/flow_test_setup.rs
index da5539c022..d135c275f8 100644
--- a/crates/starknet_integration_tests/src/flow_test_setup.rs
+++ b/crates/starknet_integration_tests/src/flow_test_setup.rs
@@ -58,8 +58,11 @@ impl FlowTestSetup {
         let [sequencer_0_consensus_manager_config, sequencer_1_consensus_manager_config]: [ConsensusManagerConfig;
             2] = consensus_manager_configs.try_into().unwrap();
 
-        let mempool_p2p_configs =
-            create_mempool_p2p_configs(SEQUENCER_INDICES.len(), chain_info.chain_id.clone());
+        let mempool_p2p_configs = create_mempool_p2p_configs(
+            SEQUENCER_INDICES.len(),
+            chain_info.chain_id.clone(),
+            &mut available_ports,
+        );
         let [sequencer_0_mempool_p2p_config, sequencer_1_mempool_p2p_config]: [MempoolP2pConfig;
             2] = mempool_p2p_configs.try_into().unwrap();
 
diff --git a/crates/starknet_integration_tests/src/integration_test_setup.rs b/crates/starknet_integration_tests/src/integration_test_setup.rs
index aac64fa852..e6a4e57e72 100644
--- a/crates/starknet_integration_tests/src/integration_test_setup.rs
+++ b/crates/starknet_integration_tests/src/integration_test_setup.rs
@@ -72,8 +72,11 @@ impl IntegrationTestSetup {
                 SEQUENCER_INDICES.len(),
                 &mut available_ports,
             );
-        let mut mempool_p2p_configs =
-            create_mempool_p2p_configs(SEQUENCER_INDICES.len(), chain_info.chain_id.clone());
+        let mut mempool_p2p_configs = create_mempool_p2p_configs(
+            SEQUENCER_INDICES.len(),
+            chain_info.chain_id.clone(),
+            &mut available_ports,
+        );
 
         // Derive the configuration for the sequencer node.
         let (config, required_params) = create_config(
diff --git a/crates/starknet_integration_tests/src/utils.rs b/crates/starknet_integration_tests/src/utils.rs
index ad8766d316..361e469f86 100644
--- a/crates/starknet_integration_tests/src/utils.rs
+++ b/crates/starknet_integration_tests/src/utils.rs
@@ -138,8 +138,12 @@ pub fn test_rpc_state_reader_config(rpc_server_addr: SocketAddr) -> RpcStateRead
     RpcStateReaderConfig::from_url(format!("http://{rpc_server_addr:?}/rpc/{RPC_SPEC_VERSION}"))
 }
 
-pub fn create_mempool_p2p_configs(n_mempools: usize, chain_id: ChainId) -> Vec<MempoolP2pConfig> {
-    create_connected_network_configs(n_mempools)
+pub fn create_mempool_p2p_configs(
+    n_mempools: usize,
+    chain_id: ChainId,
+    available_ports: &mut AvailablePorts,
+) -> Vec<MempoolP2pConfig> {
+    create_connected_network_configs(n_mempools, available_ports)
         .into_iter()
         .map(|mut network_config| {
             network_config.chain_id = chain_id.clone();
diff --git a/crates/starknet_sequencer_infra/src/test_utils.rs b/crates/starknet_sequencer_infra/src/test_utils.rs
index 40a6a41668..c1ace573cf 100644
--- a/crates/starknet_sequencer_infra/src/test_utils.rs
+++ b/crates/starknet_sequencer_infra/src/test_utils.rs
@@ -53,6 +53,10 @@ impl AvailablePorts {
         port
     }
 
+    pub fn get_next_ports(&mut self, n: usize) -> Vec<u16> {
+        (0..n).map(|_| self.get_next_port()).collect()
+    }
+
     pub fn get_next_local_host_socket(&mut self) -> SocketAddr {
         SocketAddr::new(IpAddr::from(Ipv4Addr::LOCALHOST), self.get_next_port())
     }