diff --git "a/41 \346\261\237\346\226\207\346\267\257/20250424 \344\275\234\344\270\232.md" "b/41 \346\261\237\346\226\207\346\267\257/20250424 \344\275\234\344\270\232.md"
new file mode 100644
index 0000000000000000000000000000000000000000..0248f3f6109830719368c00d21f1a21e12df35de
--- /dev/null
+++ "b/41 \346\261\237\346\226\207\346\267\257/20250424 \344\275\234\344\270\232.md"	
@@ -0,0 +1,31 @@
+```
+路由器1
+Router>en
+Router#conf t
+Router(config)#access-list 10 permit 192.168.30.1
+Router(config)#access-list 10 deny any
+Router(config)#int g0/2
+Router(config-if)#ip access-group 10 out
+路由器3
+Router>en
+Router#conf t
+Router(config)#access-list 10 permit 192.168.10.1
+Router(config)#access-list 10 deny any
+Router(config)#int g0/2
+Router(config-if)#ip access-group 10 out
+路由器4
+Router>en
+Router#conf t
+Router(config)#access-list 10 permit 192.168.10.1
+Router(config)#access-list 10 permit 3.3.3.0 0.0.0.255
+Router(config)#access-list 10 deny any
+Router(config-if)#int g0/0
+Router(config-if)#ip access-group 10 in
+路由器5
+Router>en
+Router#conf t
+Router(config)#access-list 10 permit 192.168.20.2
+Router(config)#access-list 10 deny any
+Router(config)#int g0/0
+Router(config-if)#ip access-group 10 out
+```
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