8– laboratoriya ishi Mavzu: Marshrutizatorlarda nat/pat texnologiyasini sozlash. Ishdan maqsad

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2-laboratoriya ishi-sirtqi (1)

2. Dynamic Address Translation
Dinamik NAT - ro'yxatdan o'tmagan IP manzilni ro'yxatdan o'tgan IP-
manzillar guruhiga translatsiya qilishdan iborat.
Dinamik NAT ning Statik NAT dan farqi shuki, bu yerda bir nechta
xususiy (Private) adresga bir nechta ommaviy (public) adreslar to‗gri keladi.
Ushbu holatni amalga oshirish uchun access list va Pool dan foydalanimiz
Dinamik NAT bo`yicha ishni bajarish tartibi

8.6 – rasm. Dinamik NAT tamoyili asosida qurilgan tarmoq tuzilishi
Birinchi navbatda Router1 va Router2 larga statik ip route beriladi.
Chunki internet qismidagi adreslarni oldindan bilmaymiz.
Router1(config)#ip route 0.0.0.0 0.0.0.0 11.11.11.2
Router2(config)#ip route 0.0.0.0 0.0.0.0 11.11.11.1
195.158.1.1 dan 195.158.1.10 gacha public IP adreslarni
tarqatishimiz uchun TATU nomli Pool yaratamiz.
Router(config)#ip nat pool TATU 195.158.1.1 195.158.1.10

netmask 255.255.255.240
LAN tarmoqlar ichida aynan 192.168.1.0/24 tarmoq internetga
chiqishi uchun Access list foydalanamiz
Router1(config)#access-list 10 permit 192.168.1.0
0.0.0.255 Access list ni TATU nomli yaratilgan NAT
ga biriktiramiz. Router1(config)#ip nat inside source
list 10 pool TATU Router ning kirish va chiqish

portlariga NAT ni biriktiramiz
Router1(config)#interface fastEthernet 0/0
Router1(config-if)#ip nat inside
Router1(config-if)#exit
Router1(config)#interface
fastEthernet 0/1
Router1(config-if)#ip nat
outside Router1(config-
if)#exit

Router1# show ip nat translations
Router1#show running-config
8.7-rasm. Manzillarni translatsiyasi bo‘yicha olingan natijalar

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