Cleanup - maybe working...

peer/multicast.go

@@ -13,7 +13,7 @@ import (
 )
 
 const (
-	mcBeaconLen          = 35                        // 1 VPN IP byte + 32 WG pubkey + 2 WG listen port
+	mcBeaconLen          = 35                          // 1 VPN IP byte + 32 WG pubkey + 2 WG listen port
 	mcSignedBeaconLen    = sign.Overhead + mcBeaconLen // 64-byte nacl/sign prefix + payload
 	mcBroadcastInterval  = 32 * time.Second
 	mcErrorRetryInterval = 16 * time.Second
@@ -78,6 +78,9 @@ func runMCReaderInner(vpnNet netip.Prefix, selfVPNIP netip.Addr, ch chan<- Multi
 		conn.SetReadDeadline(time.Now().Add(32 * time.Second))
 		n, src, err := conn.ReadFromUDPAddrPort(buf)
 		if err != nil {
+			if ne, ok := err.(net.Error); ok && ne.Timeout() {
+				continue
+			}
 			return fmt.Errorf("read: %w", err)
 		}
 		if n != mcSignedBeaconLen {