ACL
Answer:
Configuring Access Control List
Corp1>enable
Corp1#configure terminal
Corp1(config)#access-list 123 permit tcp host 192.168.169.3 host 172.22.87.24 eq www
Corp1(config)#access-list 123 deny tcp any host 172.22.87.24 eq www
Corp1(config)#access-list 123 permit ip any any
Corp1(config)#end
Place the ACL to check for packets going outside the interface
Corp1#show ip interface brief
Interface IP-Address OK? Method Status Protocol
FastEthernet0/0 172.22.87.30 YES manual up up
FastEthernet0/1 192.168.169.254 YES manual up up
Serial0/0/0 198.18.234.66 YES manual up up
Corp1(config)#interface fa0/0
Corp1(config-if)#ip access-group 123 out
Corp1(config-if)#end
Corp1#copy run startup-config