Vazirligi muhammad al-xorazmiy nomidagi toshkеnt axborot

NAPT, NAT Overload, PAT

PAT- dinamik NATning bir shakli bo'lib, bir nechta ro'yxatdan o'tmagan manzillarni turli xil portlardan foydalangan holda bitta ro'yxatdan o'tgan IP manzilga translatsiya qilishdan iborat.
PAT bo`yicha ishni bajarish tartibi

8.5 – rasm. PAT tamoyili asosida qurilgan tarmoq tuzilishi

Router1(config)#ip route 0.0.0.0 0.0.0.0 12.12.12.2
Router1(config)#ip nat pool nad_pat 195.158.1.1 195.158.1.4 netmask 255.255.255.240
Router1(config)#access-list 10 permit 192.168.1.0 0.0.0.255 Router1(config)#ip nat inside source list 10 pool nad_pat overload Router1(config)#interface fastEthernet 0/0
Router1(config-if)#ip nat inside Router1(config-if)#exit Router1(config)#interface fastEthernet 0/1 Router(config-if)#ip nat outside Router(config-if)#exit
Router(config)#end Router#copy run startup-config
Router 2 konfiguratsiyasi
Router(config)#ip route 0.0.0.0 0.0.0.0 12.12.12.1

LAN tarmog`idagi barcha Private adreslar bitta 195.158.1.1 Public adres orqali translatsiya bo`ladi faqat port har xil.

Nazorat savollari

1. 
   Manzillarni translatsiya qilish (NAT) usullarini keltiring?
   
2. 
   Statik NAT Dinamik NAT dan qanday farqlanadi?
   
3. 
   PAT ning ishlash prinsipini tushuntirib bering.
   
4. 
   Tarmoqda qanday turdagi manzillar mavjud.