• BGP protokol bo`yicha qurilgan tarmoq uchun ishni bajarish tartibi
  • “tarmoq xavfsizligi”




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    “tarmoq xavfsizligi”

    R1 konfiguratsiyasi
    R1(config)#router ospf 10
    R1(config-router)#router-id 1.1.1.1
    R1(config-router)#network 192.168.10.0 0.0.0.255 area 1
    R1(config-router)#network 11.11.11.0 0.0.0.3 area 0
    R1(config-router)#network 10.10.10.0 0.0.0.3 area 0
    R1(config-router)#exit
    R1(config)#router ospf 10
    R1(config-router)#area 0 authentication message-digest
    R1(config-router)#exit
    R1(config)#interface serial 0/3/0
    R1(config-if)#ip ospf message-digest-key 1 md5 cisco123
    R1(config-if)#exit
    R3(config)#router ospf 10
    R3(config-router)#router-id 3.3.3.3
    R3(config-router)#network 192.168.30.0 0.0.0.255 area 3
    R3(config-router)#network 12.12.12.0 0.0.0.3 area 0
    R3(config-router)#network 11.11.11.0 0.0.0.3 area 0
    R3(config-router)#exit



    BGP (ing. Border Gateway Protocol, chegaraviy shlyuz protokoli) Internetdagi asosiy dinamik marshrutlash protokoli hisoblanadi.
    BGP protokoli boshqa dinamik marshrutlash protokollaridan farqli o‘laroq, marshrut ma’lumotlarini alohida marshrutlagichlar o‘rtasida emas, balki butun avtonom tizimlar o‘rtasida almashish uchun mo‘ljallangan va shu sababli, tarmoqdagi marshrutlar haqida ma’lumotlardan tashqari, avtonom tizimlarga yo‘nalishlar to‘g‘risida ham ma’lumot olib boradi.


    6.11-rasm. BGP protokol asosida qurilgan tarmoq topologiyasi
    BGP protokol bo`yicha qurilgan tarmoq uchun ishni bajarish tartibi
    Kompyuterlarga 6.11-rasmda ko‘rsatilgan topologiya bo‘yicha IP manzillarni kiriting.
    a) R1 marshrutizatorning konfiguratsiyasini sozlaymiz.
    R1(config)#router bgp 65100
    R1(config-router)#bgp router-id 1.1.1.1
    R1(config-router)#neighbor 172.16.0.2 remote-as 65200
    R1(config-router)#neighbor 172.16.13.2 remote-as 65300
    R1(config-router)#network 192.168.1.0 mask 255.255.255.0
    R1(config-router)#exit
    b) R1 marshrutizatorning konfiguratsiyasini sozlaymiz
    R2(config)#router bgp 65200
    R2(config-router)#bgp router-id 2.2.2.2
    R2(config-router)#neighbor 172.16.0.1 remote-as 65100
    R2(config-router)#neighbor 172.16.23.2 remote-as 65300
    R2(config-router)#network 192.168.2.0 mask 255.255.255.0
    R2(config-router)#exit
    s) R1 marshrutizatorning konfiguratsiyasini sozlaymiz
    R3(config)#router bgp 65300
    R3(config-router)#bgp router-id 3.3.3.3
    R3(config-router)#neighbor 172.16.13.1 remote-as 65100
    R3(config-router)#neighbor 172.16.23.1 remote-as 65200
    R3(config-router)#network 192.168.3.0 mask 255.255.255.0
    R3(config-router)#exit




    6.12-rasm. Tarmoq elementlari konfiguratsiyalari listinglari

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