nat: fix port number selection

[vpp.git] / src / plugins / nat / nat.c

diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index c4c5dd8..fa62250 100644 (file)
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -2893,7 +2893,7 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
                     { \
                       portnum = (port_per_thread * \
                         snat_thread_index) + \
-                        snat_random_port(1, port_per_thread) + 1024; \
+                        snat_random_port(0, port_per_thread - 1) + 1024; \
                       if (a->busy_##n##_port_refcounts[portnum]) \
                         continue; \
                      --a->busy_##n##_port_refcounts[portnum]; \
@@ -2930,7 +2930,7 @@ nat_alloc_addr_and_port_default (snat_address_t * addresses,
             { \
               portnum = (port_per_thread * \
                 snat_thread_index) + \
-                snat_random_port(1, port_per_thread) + 1024; \
+                snat_random_port(0, port_per_thread - 1) + 1024; \
              if (a->busy_##n##_port_refcounts[portnum]) \
                 continue; \
              ++a->busy_##n##_port_refcounts[portnum]; \