diff --git a/internal/net/dialer/dialer_linux.go b/internal/net/dialer/dialer_linux.go
index bf5f863e..29ce583b 100644
--- a/internal/net/dialer/dialer_linux.go
+++ b/internal/net/dialer/dialer_linux.go
@@ -11,6 +11,14 @@ func bindDevice(network, address string, fd uintptr, ifceName string) error {
 		return nil
 	}
 
+	// Skip SO_BINDTODEVICE for loopback interface — it prevents
+	// outbound traffic from reaching non-local destinations.
+	// Source IP binding via LocalAddr is sufficient for policy routing
+	// when using IP aliases on loopback (e.g. ip addr add 10.1.1.1/32 dev lo).
+	if ifce, err := net.InterfaceByName(ifceName); err == nil && ifce.Flags&net.FlagLoopback != 0 {
+		return nil
+	}
+
 	host, _, _ := net.SplitHostPort(address)
 	if ip := net.ParseIP(host); ip != nil && !ip.IsGlobalUnicast() {
 		return nil