Otabekov umidbekning tarmoq xafsizligi

Topshiriq
Statik marshrutlashni afzallik va kamchiliklarini, qurish usullarini tahlil qiling.
Dinamik marshrutlash tarmoqlar uchun marshrutlash jadvallarini yangilash va ulanishlar topologiyasi va holatiga tezda moslashishi uchun talab qilinadi. Dinmik 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.
   

3-router

5. 
   Router>enable
   
6. 
   Router#conf t
   
7. 
   Enter configuration commands, one per line. End with CNTL/Z.
   
8. 
   Router(config)#int fa 0/0
   
9. 
   Router(config-if)#no shutdown
   
10. 
    
11. 
    Router(config-if)#
    
12. 
    %LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up
    
13. 
    
14. 
    %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up
    
15. 
    
16. 
    Router(config-if)#ip address 192.168.3.1 255.255.255.0
    
17. 
    Router(config-if)#exit
    
18. 
    Router(config)#int fa 0/1
    
19. 
    Router(config-if)#no shutdown
    
20. 
    
21. 
    Router(config-if)#
    
22. 
    %LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up
    
23. 
    
24. 
    %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up
    
25. 
    
26. 
    Router(config-if)#ip address 1.1.1.2 255.255.255.252
    
27. 
    Router(config-if)#exit
    
28. 
    Router(config)#ip dhcp pool vl3
    
29. 
    Router(dhcp-config)#network 192.168.3.0 255.255.255.0
    
30. 
    Router(dhcp-config)#defaul-router 192.168.3.1
    

31. 
    Router(dhcp-config)#defaul- router 192.168.3.1
    
32. 
    Router(dhcp-config)#exit
    
33. 
    Router(config)#ip route 192.168.2.0 255.255.255.0 1.1.1.1
    
34. 
    Router(config)#do wr
    
35. 
    Building configuration...
    
36. 
    [OK]
    
37. 
    Router(config)#
    

2-router
Router>enable
Router#conf t
Enter configuration commands, one per line. End with CNTL/Z.
Router(config)#int fa 0/0
Router(config-if)#no shutdown

Router(config-if)#

%LINK-5-CHANGED: Interface FastEthernet0/0, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/0, changed state to up

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)#

%LINK-5-CHANGED: Interface FastEthernet0/1, changed state to up

%LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet0/1, changed state to up

Router(config-if)#ip address 1.1.1.2 255.255.255.252

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)#defaul-router 192.168.3.1
Router(dhcp-config)#defaul- router 192.168.3.1
Router(dhcp-config)#exit
Router(config)#ip route 192.168.2.0 255.255.255.0 1.1.1.1
Router(config)#do wr
Building configuration...
[OK]
Router(config)#