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Buzoianu George 434A

Arhitectura retelei

Topologie roata

Routerii - Generic (PT-Empty).Router1...5 - 4 interfete, FastEthernet

Router0 - 6 interfete, FastEthernetTerminale - PC-PT.

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Conexiuni - Cablu Copper Cross-over.

Configurarea retelei

Router1

IP-ul router-ului 1, 163.160.156.152, aflat prin formula: (XX+130k).(XX+1304*k).(XX+1308*k).(XX+13012*k) XX = 34 k = {1,2,3,4,5,6} numarul de ordine al fiecarui router. (pt Router_0 avem k=6)

k=1 163.160.156.152 Router1

k=2 162.156.148.140 Router2k=3 161.152.140.128 Router3k=4 160.148.132.116 Router4k=5 159.144.124.104 Router5

k=6 158.140.116.92 Router0

Pentru interconectarea ruterelor s-au folosit adrese private de clasa C. (192.168.a.b)

De ex. conectarea router_1 la router_2 se face prin FastEthernet1/0 : 192.168.1.1(router_2 avand configurat FastEthernet1/0: 192.168.1.2)

Router2

Router3

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Router4

Router5

Router0

Deci dupa cum putem observa conexiunile intre rutere se realizeaza prin adresele IP192.168.a.b (a ={1,2,3,4,5,6,7,8,9,10; b ={1,2}). Iar conexiunile dintre routere sicalculatoare, fiind create prin clasa de ip-uri impuse de cerinta problemei.

Fiecare calculator PCx este conectat la routerul Routerx, cu x ={0,1,2,3,4,5},unde 0 este routerul numarul 6 din enuntul problemei.

PC1

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PC2

PC3

PC4

PC5

PC0

Protocolul OSPF de rutare se configureaza astfel: configure terminal router ospf id networkadresa_de_clasa masca_inversa area 0

1. Click pe router.2. Aleg tagul CLI3.

In caz ca in linia de comanda nu apare astfel Router# tastez exitpana canddevine Router#

4. Apoi tastez configure terminal=> enter5. Tastez router ospf 1 => enter

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6. Apoi de ex.: network 192.168.1.0 0.0.0.255 area 0 => enternetwork 192.168.2.0 0.0.0.255 area 0 => enternetwork 192.168.7.0 0.0.0.255 area 0 => enter

network 162.156.0.0 0.0.255.255 area 0 => enterpentru Router2.

7. Tastez exit => enter (de doua ori la rand) si se salveaza running-config instartup-config.

Ping & traceroute

Ping de la PC1 catre restul calculatoarelor:

Ping in interfata calculatorului PC2:

PC>ping 162.156.148.141

Pinging 162.156.148.141 with 32 bytes of data:

Reply from 162.156.148.141: bytes=32 time=134ms TTL=126

Reply from 162.156.148.141: bytes=32 time=98ms TTL=126

Reply from 162.156.148.141: bytes=32 time=128ms TTL=126

Reply from 162.156.148.141: bytes=32 time=112ms TTL=126

Ping statistics for 162.156.148.141:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 98ms, Maximum = 134ms, Average = 118ms

Ping in interfata calculatorului PC3:

PC>ping 161.152.140.129

Pinging 161.152.140.129 with 32 bytes of data:

Reply from 161.152.140.129: bytes=32 time=155ms TTL=125

Reply from 161.152.140.129: bytes=32 time=150ms TTL=125

Reply from 161.152.140.129: bytes=32 time=172ms TTL=125

Reply from 161.152.140.129: bytes=32 time=187ms TTL=125

Ping statistics for 161.152.140.129:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 150ms, Maximum = 187ms, Average = 166ms

Ping in interfata calculatorului PC4:

PC>ping 160.148.132.117

Pinging 160.148.132.117 with 32 bytes of data:

Reply from 160.148.132.117: bytes=32 time=181ms TTL=125

Reply from 160.148.132.117: bytes=32 time=149ms TTL=125

Reply from 160.148.132.117: bytes=32 time=198ms TTL=125

Reply from 160.148.132.117: bytes=32 time=183ms TTL=125

Ping statistics for 160.148.132.117:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 149ms, Maximum = 198ms, Average = 177ms

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Ping in interfata calculatorului PC5:PC>ping 159.144.124.105

Pinging 159.144.124.105 with 32 bytes of data:

Reply from 159.144.124.105: bytes=32 time=128ms TTL=126

Reply from 159.144.124.105: bytes=32 time=125ms TTL=126

Reply from 159.144.124.105: bytes=32 time=158ms TTL=126

Reply from 159.144.124.105: bytes=32 time=132ms TTL=126

Ping statistics for 159.144.124.105:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 125ms, Maximum = 158ms, Average = 135ms

Ping in interfata calculatorului PC0:PC>ping 158.140.116.93

Pinging 158.140.116.93 with 32 bytes of data:

Reply from 158.140.116.93: bytes=32 time=125ms TTL=126

Reply from 158.140.116.93: bytes=32 time=132ms TTL=126

Reply from 158.140.116.93: bytes=32 time=154ms TTL=126

Reply from 158.140.116.93: bytes=32 time=116ms TTL=126

Ping statistics for 158.140.116.93:

Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),

Approximate round trip times in milli-seconds:

Minimum = 116ms, Maximum = 154ms, Average = 131ms

Astfel observam ca am configurat corect aceasta retea, intrucat pachetele suntduse cu succes la destinatie.

Prin apelarea comenzii tracert determinam rutele prin care se pot conecta 2retele. De ex. conectarea lui PC1 la PC4 se poate face prin Router0 sau prin Router5.

1 : PC1 -> Router1 -> Router5 -> Router4 ->PC4

sau2 : PC1 -> Router1 -> Router0 -> Router4 ->PC4

PC>tracert 160.148.132.117

Tracing route to 160.148.132.117 over a maximum of 30 hops:

1 44 ms 38 ms 43 ms 163.160.156.152

2 73 ms 92 ms 92 ms 192.168.5.2

3 121 ms 113 ms 151 ms 192.168.9.1

4 191 ms 175 ms 187 ms 160.148.132.117

Trace complete.

sau

PC>tracert 160.148.132.117

Tracing route to 160.148.132.117 over a maximum of 30 hops:

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1 40 ms 35 ms 33 ms 163.160.156.152

2 67 ms 79 ms 87 ms 192.168.6.2

3 82 ms 136 ms 129 ms 192.168.9.1

4 167 ms 182 ms 178 ms 160.148.132.117

Trace complete.