diff --git a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/discovery/discv5/DiscV5Service.java b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/discovery/discv5/DiscV5Service.java
index c06fd4cafee..13a3975dc43 100644
--- a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/discovery/discv5/DiscV5Service.java
+++ b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/discovery/discv5/DiscV5Service.java
@@ -15,7 +15,6 @@
 
 import static java.util.Collections.emptyList;
 
-import com.google.common.base.Preconditions;
 import java.net.InetSocketAddress;
 import java.time.Duration;
 import java.util.ArrayList;
@@ -88,13 +87,7 @@ public DiscV5Service(
     this.currentSchemaDefinitionsSupplier = currentSchemaDefinitionsSupplier;
     this.nodeRecordConverter = nodeRecordConverter;
     final List<String> networkInterfaces = p2pConfig.getNetworkInterfaces();
-    Preconditions.checkState(
-        networkInterfaces.size() == 1 || networkInterfaces.size() == 2,
-        "The configured network interfaces must be either 1 or 2");
-    if (networkInterfaces.size() == 1) {
-      discoverySystemBuilder.listen(networkInterfaces.get(0), discoConfig.getListenUdpPort());
-    } else {
-      // IPv4 and IPv6 (dual-stack)
+    if (p2pConfig.isDualStackConfigured()) {
       final InetSocketAddress[] listenAddresses =
           networkInterfaces.stream()
               .map(
@@ -108,6 +101,8 @@ public DiscV5Service(
                   })
               .toArray(InetSocketAddress[]::new);
       discoverySystemBuilder.listen(listenAddresses);
+    } else {
+      discoverySystemBuilder.listen(networkInterfaces.get(0), discoConfig.getListenUdpPort());
     }
     final UInt64 seqNo =
         kvStore.get(SEQ_NO_STORE_KEY).map(UInt64::fromBytes).orElse(UInt64.ZERO).add(1);
@@ -118,16 +113,7 @@ public DiscV5Service(
         new NodeRecordBuilder().secretKey(localNodePrivateKey).seq(seqNo);
     if (p2pConfig.hasUserExplicitlySetAdvertisedIps()) {
       final List<String> advertisedIps = p2pConfig.getAdvertisedIps();
-      Preconditions.checkState(
-          advertisedIps.size() == 1 || advertisedIps.size() == 2,
-          "The configured advertised IPs must be either 1 or 2");
-      if (advertisedIps.size() == 1) {
-        nodeRecordBuilder.address(
-            advertisedIps.get(0),
-            discoConfig.getAdvertisedUdpPort(),
-            p2pConfig.getAdvertisedPort());
-      } else {
-        // IPv4 and IPv6 (dual-stack)
+      if (p2pConfig.isDualStackConfigured()) {
         advertisedIps.forEach(
             advertisedIp -> {
               final IPVersion ipVersion = IPVersionResolver.resolve(advertisedIp);
@@ -143,6 +129,11 @@ public DiscV5Service(
                   };
               nodeRecordBuilder.address(advertisedIp, advertisedUdpPort, advertisedTcpPort);
             });
+      } else {
+        nodeRecordBuilder.address(
+            advertisedIps.get(0),
+            discoConfig.getAdvertisedUdpPort(),
+            p2pConfig.getAdvertisedPort());
       }
     }
     final NodeRecord localNodeRecord = nodeRecordBuilder.build();
@@ -172,15 +163,14 @@ private NewAddressHandler maybeUpdateNodeRecord(final NetworkConfig p2pConfig) {
     } else {
       return (oldRecord, newAddress) -> {
         final int newTcpPort;
-        if (p2pConfig.getNetworkInterfaces().size() == 1) {
-          newTcpPort = p2pConfig.getAdvertisedPort();
-        } else {
-          // IPv4 and IPv6 (dual-stack)
+        if (p2pConfig.isDualStackConfigured()) {
           newTcpPort =
               switch (IPVersionResolver.resolve(newAddress)) {
                 case IP_V4 -> p2pConfig.getAdvertisedPort();
                 case IP_V6 -> p2pConfig.getAdvertisedPortIpv6();
               };
+        } else {
+          newTcpPort = p2pConfig.getAdvertisedPort();
         }
         return Optional.of(
             oldRecord.withNewAddress(newAddress, Optional.of(newTcpPort), localNodePrivateKey));
diff --git a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/libp2p/LibP2PNetworkBuilder.java b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/libp2p/LibP2PNetworkBuilder.java
index 5b809f77d14..b9880ec4c75 100644
--- a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/libp2p/LibP2PNetworkBuilder.java
+++ b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/libp2p/LibP2PNetworkBuilder.java
@@ -16,7 +16,6 @@
 import static tech.pegasys.teku.networking.p2p.libp2p.LibP2PNetwork.REMOTE_OPEN_STREAMS_RATE_LIMIT;
 import static tech.pegasys.teku.networking.p2p.libp2p.LibP2PNetwork.REMOTE_PARALLEL_OPEN_STREAMS_COUNT_LIMIT;
 
-import com.google.common.base.Preconditions;
 import identify.pb.IdentifyOuterClass;
 import io.libp2p.core.Host;
 import io.libp2p.core.PeerId;
@@ -109,16 +108,7 @@ public P2PNetwork<Peer> build() {
 
     final List<Multiaddr> advertisedAddresses;
     final List<String> advertisedIps = config.getAdvertisedIps();
-    Preconditions.checkState(
-        advertisedIps.size() == 1 || advertisedIps.size() == 2,
-        "The configured advertised IPs must be either 1 or 2");
-    if (advertisedIps.size() == 1) {
-      advertisedAddresses =
-          Collections.singletonList(
-              MultiaddrUtil.fromInetSocketAddress(
-                  new InetSocketAddress(advertisedIps.get(0), config.getAdvertisedPort()), nodeId));
-    } else {
-      // IPv4 and IPv6 (dual-stack)
+    if (config.isDualStackConfigured()) {
       advertisedAddresses =
           advertisedIps.stream()
               .map(
@@ -132,12 +122,17 @@ public P2PNetwork<Peer> build() {
                         new InetSocketAddress(advertisedIp, advertisedPort), nodeId);
                   })
               .toList();
+    } else {
+      advertisedAddresses =
+          Collections.singletonList(
+              MultiaddrUtil.fromInetSocketAddress(
+                  new InetSocketAddress(advertisedIps.get(0), config.getAdvertisedPort()), nodeId));
     }
 
     host = createHost(privKey, advertisedAddresses);
 
     final List<Integer> listenPorts =
-        advertisedAddresses.size() == 2
+        config.isDualStackConfigured()
             ? List.of(config.getListenPort(), config.getListenPortIpv6())
             : List.of(config.getListenPort());
 
@@ -181,16 +176,7 @@ protected PeerManager createPeerManager() {
   protected Host createHost(final PrivKey privKey, final List<Multiaddr> advertisedAddresses) {
     final String[] listenAddrs;
     final List<String> networkInterfaces = config.getNetworkInterfaces();
-    Preconditions.checkState(
-        networkInterfaces.size() == 1 || networkInterfaces.size() == 2,
-        "The configured network interfaces must be either 1 or 2");
-    if (networkInterfaces.size() == 1) {
-      final Multiaddr addr =
-          MultiaddrUtil.fromInetSocketAddress(
-              new InetSocketAddress(networkInterfaces.get(0), config.getListenPort()));
-      listenAddrs = new String[] {addr.toString()};
-    } else {
-      // IPv4 and IPv6 (dual-stack)
+    if (config.isDualStackConfigured()) {
       listenAddrs =
           networkInterfaces.stream()
               .map(
@@ -206,6 +192,11 @@ protected Host createHost(final PrivKey privKey, final List<Multiaddr> advertise
                     return addr.toString();
                   })
               .toArray(String[]::new);
+    } else {
+      final Multiaddr addr =
+          MultiaddrUtil.fromInetSocketAddress(
+              new InetSocketAddress(networkInterfaces.get(0), config.getListenPort()));
+      listenAddrs = new String[] {addr.toString()};
     }
 
     return BuilderJKt.hostJ(
diff --git a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/network/config/NetworkConfig.java b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/network/config/NetworkConfig.java
index 2dce9abd3d5..2fd1541f98f 100644
--- a/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/network/config/NetworkConfig.java
+++ b/networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/network/config/NetworkConfig.java
@@ -103,6 +103,10 @@ public List<String> getNetworkInterfaces() {
     return networkInterfaces;
   }
 
+  public boolean isDualStackConfigured() {
+    return networkInterfaces.size() == 2;
+  }
+
   public List<String> getAdvertisedIps() {
     return advertisedIps.orElse(networkInterfaces).stream()
         .map(this::resolveAnyLocalAddress)
diff --git a/teku/src/main/java/tech/pegasys/teku/services/BeaconNodeServiceController.java b/teku/src/main/java/tech/pegasys/teku/services/BeaconNodeServiceController.java
index 0e33d4839dc..e28629b55b8 100644
--- a/teku/src/main/java/tech/pegasys/teku/services/BeaconNodeServiceController.java
+++ b/teku/src/main/java/tech/pegasys/teku/services/BeaconNodeServiceController.java
@@ -64,8 +64,7 @@ public BeaconNodeServiceController(
         new NatService(
             tekuConfig.natConfiguration(),
             networkConfig.getListenPort(),
-            // // IPv4 and IPv6 (dual-stack)
-            networkConfig.getNetworkInterfaces().size() == 2
+            networkConfig.isDualStackConfigured()
                 ? Optional.of(networkConfig.getListenPortIpv6())
                 : Optional.empty(),
             tekuConfig.discovery().isDiscoveryEnabled()));