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-rw-r--r--src/plugins/nat/nat.c11
1 files changed, 10 insertions, 1 deletions
diff --git a/src/plugins/nat/nat.c b/src/plugins/nat/nat.c
index bedf4e5d386..56904ef7e04 100644
--- a/src/plugins/nat/nat.c
+++ b/src/plugins/nat/nat.c
@@ -387,7 +387,7 @@ nat44_classify_node_fn_inline (vlib_main_t * vm,
if (ip0->dst_address.as_u32 == ap->addr.as_u32)
{
next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
- break;
+ goto enqueue0;
}
}
@@ -401,8 +401,17 @@ nat44_classify_node_fn_inline (vlib_main_t * vm,
if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0))
{
next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
+ goto enqueue0;
}
+ udp_header_t * udp0 = ip4_next_header (ip0);
+ m_key0.port = clib_net_to_host_u16 (udp0->dst_port);
+ m_key0.protocol = ip_proto_to_snat_proto (ip0->protocol);
+ kv0.key = m_key0.as_u64;
+ if (!clib_bihash_search_8_8 (&sm->static_mapping_by_external, &kv0, &value0))
+ next0 = NAT44_CLASSIFY_NEXT_OUT2IN;
}
+
+ enqueue0:
/* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,