From 37842ed60049d2cb89d804ef9a780ba0e813afd7 Mon Sep 17 00:00:00 2001
From: daxi20 <gaoyuheng@yuheng.hl.cn>
Date: Mon, 3 Nov 2025 16:57:26 +0800
Subject: [PATCH] =?UTF-8?q?=E6=9B=B4=E6=96=B0=E5=A4=96=E5=8F=91BGP?=
 =?UTF-8?q?=E6=A8=A1=E6=9D=BF?=
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---
 bird/net/inet.conf |  4 ++++
 bird/net/unet.conf | 49 +++++++++++++++++++++++++++++++++++-----------
 update.sh          |  7 +++++--
 3 files changed, 47 insertions(+), 13 deletions(-)

diff --git a/bird/net/inet.conf b/bird/net/inet.conf
index 733c9fa..d631211 100644
--- a/bird/net/inet.conf
+++ b/bird/net/inet.conf
@@ -6,6 +6,8 @@ template bgp tpl_bgp_up {
         import filter {
             if is_self_net() then reject; 
             if is_bogon_prefix() || (bgp_path.len > 100) then reject; 
+            bgp_large_community.empty;  
+            bgp_large_community.add((LOCAL_ASN,200,0));# 传输到Ebgp
             accept;
         };
         export filter {
@@ -22,6 +24,8 @@ template bgp tpl_bgp_up {
         import filter {
             if is_self_net_v6() then reject; 
             if is_bogon_prefix() || (bgp_path.len > 100) then reject; 
+            bgp_large_community.empty;  
+            bgp_large_community.add((LOCAL_ASN,200,0));# 传输到Ebgp
             accept;
         };
         export filter {
diff --git a/bird/net/unet.conf b/bird/net/unet.conf
index 231883e..93ee29f 100644
--- a/bird/net/unet.conf
+++ b/bird/net/unet.conf
@@ -4,19 +4,37 @@ template bgp unet_bgp_up0 {
     ipv4 {
         table unet4;
         import filter {
-          if unet_is_valid_network_v4_allnet() && !unet_is_self_net() then accept;
-          reject;
+          if !unet_is_valid_network_v4_allnet() then reject;
+          if unet_is_self_net() then reject;
+          bgp_large_community.empty;  
+          bgp_large_community.add((UNET_ASN,200,0));# 传输到Ebgp
+          accept;
+        };
+        export filter { 
+            if !unet_is_valid_network_v4_allnet() then reject; 
+            if source !~ [RTS_STATIC, RTS_BGP] then reject;
+            if bgp_large_community !~ [(UNET_ASN, 200,0)] then reject;      
+            bgp_large_community.empty;  
+            accept;
         };
-        export filter { if unet_is_valid_network_v4_allnet() && source ~ [RTS_STATIC, RTS_BGP] then accept; else reject; };
         import limit 9000 action block; 
     };
-    ipv6 {
-        table unet6;
+    ipv4 {
+        table unet4;
         import filter {
-          if unet_is_voalid_net_v6() && !unet_is_self_net_v6() then accept;
-          reject;
+          if !unet_is_voalid_net_v6() then reject;
+          if unet_is_self_net_v6() then reject;
+          bgp_large_community.empty;  
+          bgp_large_community.add((UNET_ASN,200,0));# 传输到Ebgp
+          accept;
+        };
+        export filter { 
+            if !unet_is_voalid_net_v6() then reject; 
+            if source !~ [RTS_STATIC, RTS_BGP] then reject;
+            if bgp_large_community !~ [(UNET_ASN, 200,0)] then reject;      
+            bgp_large_community.empty;  
+            accept;
         };
-        export filter { if unet_is_voalid_net_v6() && source ~ [RTS_STATIC, RTS_BGP] then accept; else reject; };
         import limit 9000 action block; 
     };
 }
@@ -27,10 +45,19 @@ template bgp unet_bgp_up1 {
     ipv4 {
         table unet4;
         import filter {
-          if unet_is_valid_network_v4() && !unet_is_self_net() then accept;
-          reject;
+          if !unet_is_valid_network_v4() then reject;
+          if unet_is_self_net() then reject;
+          bgp_large_community.empty;  
+          bgp_large_community.add((UNET_ASN,200,0));# 传输到Ebgp
+          accept;
+        };
+        export filter { 
+            if !unet_is_valid_network_v4() then reject; 
+            if source !~ [RTS_STATIC, RTS_BGP] then reject;
+            if bgp_large_community !~ [(UNET_ASN, 200,0)] then reject;      
+            bgp_large_community.empty;  
+            accept;
         };
-        export filter { if unet_is_valid_network_v4() && source ~ [RTS_STATIC, RTS_BGP] then accept; else reject; };
         import limit 9000 action block; 
     };
 }
diff --git a/update.sh b/update.sh
index 4c22b5a..bf211ea 100644
--- a/update.sh
+++ b/update.sh
@@ -1,7 +1,10 @@
 #!/bin/bash
 
-rm /etc/bird/function/unet.conf
-curl https://git.nia.ink/brnet/bird_config/raw/branch/master/bird/function/unet.conf > /etc/bird/function/unet.conf
+rm /etc/bird/net/unet.conf
+curl https://git.nia.ink/brnet/bird_config/raw/branch/master/bird/net/unet.conf > /etc/bird/net/unet.conf
+
+rm /etc/bird/net/inet.conf
+curl https://git.nia.ink/brnet/bird_config/raw/branch/master/bird/net/inet.conf > /etc/bird/net/inet.conf
 
 chmod -R 755 /etc/bird