4-laboratoriya ishi
Cisco routerlarida dinamik marshrutlashni sozlash
Ishdan maqsad. Cisco routerlarida dinamik marshrutlash protokollari
asosida marshrutlashni sozlash ko`nikmalariga ega bo`lish.
Nazariy qism
Dinamik marshrutlash tarmoqlar uchun marshrutlash jadvallarini yangilash
va ulanishlar topologiyasi va holatiga tezda moslashishi uchun talab qilinadi.
Dinamik marshrutlashni amalga oshiruvchi bir qator protokollar mavjud, ya`ni
RIP,OSPF,EIGRP,BGP.
Dinamik marshrutlash quyidagi afzalliklarga ega:
mutaxassis uchun katta tarmoqlarni o`zaro bir biriga bo`g`lashda qulay
hisoblanadi;
paketni eng qisqa yo`l orqali uzatishni ta`minlaydi;
statik marshrutlashga nisbatan tezroq, ya`ni paketni belgilangan tarmoqqa
qisqa vaqt ichida yuborish imkoniyatiga ega.
Kamchiligi:
qurilmadan (router, L3 switch) ko`p resurs talab qiladi;
xavfsizlikni ta`minlash murakkab hisoblanadi, chunki paketni tarmoqdagi
anyan qaysi yo`ldan yuborilishini protokol asosida router belgilaydi;
tarmoqda marshrutlovchi protokolllari xatolik yuzaga kelsa, ushbu xatolikni
aniqlab, bartaraf etish uchun mutaxassisdan yuqori malaka talab qiladi.
Ishni bajarish tartibi
1. Cisco packet tracer dasturi ishga tushiriladi.
2. Quyida berilgan topologiya quriladi.
3. RIP protokoli asosida dinamik marshrutlash amalga oshiriladi.
4. Qurilgan topologiya testlab ko`riladi.
1. ROUTER_1 ga kiritiladigan buyruqlar ketma-ketligi:
Router#conf t
Router(config)#int fa 0/0
Router(config-if)#
Router(config-if)#no shut
Router(config-if)#ip address 192.168.2.1 255.255.255.0
Router(config-if)#exit
Router(config)#int fa 0/1
Router(config-if)#no shutdown
Router(config-if)#ip address 1.1.1.1 255.255.255.252
Router(config-if)#exit
Router(config)#int fa 1/0
Router(config-if)#no shut
Router(config-if)#ip address 2.2.2.1 255.255.255.252
Router(config-if)#exit
Router(config)#ip dhcp pool vl2
Router(dhcp-config)#network 192.168.2.0 255.255.255.0
Router(dhcp-config)#default-router 192.168.2.1
Router(dhcp-config)#exit
Router(config)# router rip
Router(config-router)#network 192.168.2.0
Router(config-router)#network 1.1.1.0
Router(config-router)#network 2.2.2.0 (RIP protokolini sozlash jarayoni)
Router(config-router)#exit
2. ROUTER_2 ga kiritiladigan buyruqlar ketma-ketligi:
Router#conf t
Router(config)#int fa 0/0
Router(config-if)#
Router(config-if)#no shut
Router(config-if)#ip address 192.168.3.1 255.255.255.0
Router(config-if)#exit
Router(config)#int fa 0/1
Router(config-if)#no shutdown
Router(config-if)#ip address 3.3.3.1 255.255.255.252
Router(config-if)#exit
Router(config)#int fa 1/0
Router(config-if)#no shut
Router(config-if)#ip address 2.2.2.2 255.255.255.252
Router(config-if)#exit
Router(config)#ip dhcp pool vl3
Router(dhcp-config)#network 192.168.3.0 255.255.255.0
Router(dhcp-config)#default-router 192.168.3.1
Router(dhcp-config)#exit
Router(config)# router rip
Router(config-router)#network 192.168.3.0
Router(config-router)#network 3.3.3.0
Router(config-router)#network 2.2.2.0 (RIP protokolini sozlash jarayoni)
Router(config-router)#exit
3. ROUTER_3 ga kiritiladigan buyruqlar ketma-ketligi:
Router#conf t
Router(config)#int fa 0/0
Router(config-if)#
Router(config-if)#no shut
Router(config-if)#ip address 192.168.4.1 255.255.255.0
Router(config-if)#exit
Router(config)#int fa 0/1
Router(config-if)#no shutdown
Router(config-if)#ip address 3.3.3.2 255.255.255.252
Router(config-if)#exit
Router(config)#int fa 1/0
Router(config-if)#no shut
Router(config-if)#ip address 1.1.1.2 255.255.255.252
Router(config-if)#exit
Router(config)#ip dhcp pool vl4
Router(dhcp-config)#network 192.168.4.0 255.255.255.0
Router(dhcp-config)#default-router 192.168.4.1
Router(dhcp-config)#exit
Router(config)# router rip
Router(config-router)#network 192.168.4.0
Router(config-router)#network 3.3.3.0
Router(config-router)#network 1.1.1.0 (RIP protokolini sozlash jarayoni)
Router(config-router)#exit
4. Qurilgan topologiya testlab ko`riladi.
