1 files changed, 13 insertions, 3 deletions

diff --git a/src/firejail/network_main.c b/src/firejail/network_main.c
index e9de84400..c93c47eda 100644
--- a/src/firejail/network_main.c
+++ b/src/firejail/network_main.c
@@ -175,9 +175,19 @@ void net_check_cfg(void) {
         if (cfg.bridge3.configured)
                 net_configured++;
 
-        // --defaultgw requires a network
-        if (cfg.defaultgw && net_configured == 0) {
-                fprintf(stderr, "Error: option --defaultgw requires at least one network to be configured\n");
+        int if_configured = 0;
+        if (cfg.interface0.configured)
+                if_configured++;
+        if (cfg.interface1.configured)
+                if_configured++;
+        if (cfg.interface2.configured)
+                if_configured++;
+        if (cfg.interface3.configured)
+                if_configured++;
+
+        // --defaultgw requires a network or an interface
+        if (cfg.defaultgw && net_configured == 0 && if_configured == 0) {
+                fprintf(stderr, "Error: option --defaultgw requires at least one network or one interface to be configured\n");
                 exit(1);
         }