Cisco Labs : To many Static routing (UAS Praktikum Jarkom ) [IlyasaWiki]

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===== Cisco Labs : To many Static routing (UAS Praktikum Jarkom ) =====
{{ :networking:cisco:cisco_labs-multiple-lan.png?nolink |}}


==== GOALS ====

  - Menghubungkan semua jaringan dalam topology menggunakan Static Routing
  - Menghubungkan semua LAN ke internet (192.168.1.0/24 & 192.168.4.0/24)

===== Konfigurasi =====

==== R1 ====

<code js>
ip dhcp excluded-address 192.168.1.1
ip dhcp pool LAN_1
 network 192.168.1.0 255.255.255.0
 default-router 192.168.1.1
 dns-server 8.8.8.8
 exit
!
interface FastEthernet0/0
 ip address 192.168.1.1 255.255.255.0
 no shutdown
!
interface FastEthernet0/1
 ip address 192.168.3.1 255.255.255.0
 no shutdown
!
interface Serial1/0
 ip address 192.168.2.1 255.255.255.0
 no shutdown
!
ip route 192.168.5.0 255.255.255.0 192.168.2.2
ip route 192.168.6.0 255.255.255.0 192.168.3.2
ip route 192.168.4.0 255.255.255.0 192.168.3.2
ip route 0.0.0.0 0.0.0.0 192.168.3.2
</code>

==== R2 ====

<code js>
interface Serial1/0
 ip address 192.168.2.2 255.255.255.0
 no shutdown
!
interface Serial1/1
 ip address 192.168.5.2 255.255.255.0
 no shutdown
!
ip route 192.168.1.0 255.255.255.0 192.168.2.1
ip route 192.168.3.0 255.255.255.0 192.168.2.1
ip route 192.168.4.0 255.255.255.0 192.168.5.1
ip route 192.168.6.0 255.255.255.0 192.168.5.1
ip route 0.0.0.0 0.0.0.0 192.168.5.1
</code>

==== R3 ====

<code js>
interface Serial1/0
 ip address 192.168.5.1 255.255.255.0
 no shutdown
!
interface Serial1/1
 ip address 192.168.6.1 255.255.255.0
 no shutdown
!

ip route 192.168.1.0 255.255.255.0 192.168.5.2
ip route 192.168.2.0 255.255.255.0 192.168.5.2
ip route 192.168.3.0 255.255.255.0 192.168.5.2
ip route 192.168.4.0 255.255.255.0 192.168.6.2
ip route 0.0.0.0 0.0.0.0 192.168.6.2
</code>

==== R4 ====

<code js>
ip dhcp excluded-address 192.168.4.1
ip dhcp pool LAN_2
 network 192.168.4.0 255.255.255.0
 default-router 192.168.4.1
 dns-server 8.8.8.8
 exit
 
access-list 1 permit 192.168.0.0 0.0.255.255

ip nat inside source list 1 interface fa0/0 overload

interface FastEthernet0/0
 ip address dhcp
 ip nat outside
 no shutdown
 exit

interface FastEthernet0/1
 ip address 192.168.4.1 255.255.255.0
 ip nat inside
 no shutdown
 exit

interface FastEthernet2/0
 ip address 192.168.3.2 255.255.255.0
 no shutdown
 exit

interface Serial1/1
 ip address 192.168.6.2 255.255.255.0
 no shutdown
!

ip route 192.168.1.0 255.255.255.0 192.168.3.1
ip route 192.168.2.0 255.255.255.0 192.168.3.1
ip route 192.168.5.0 255.255.255.0 192.168.6.1
</code>

===== Testing =====

  * Internet Connection from R4

<code js>
R4#show ip interface brief | section FastEthernet0/0
FastEthernet0/0            192.168.195.140 YES DHCP   up                    up
R4#show ip route | section 0.0.0.0
Gateway of last resort is 192.168.195.2 to network 0.0.0.0
S*   0.0.0.0/0 [1/0] via 192.168.195.2
R4#ping 8.8.8.8

Type escape sequence to abort.
Sending 5, 100-byte ICMP Echos to 8.8.8.8, timeout is 2 seconds:
!!!!!
Success rate is 100 percent (5/5), round-trip min/avg/max = 32/44/64 ms
</code>

  * Internet Connection from LAN_1 and LAN_2

<code js>
PC1> ip dhcp
DORA IP 192.168.1.2/24 GW 192.168.1.1

PC1> ping google.com
google.com resolved to 74.125.130.102

84 bytes from 74.125.130.102 icmp_seq=1 ttl=126 time=68.243 ms
84 bytes from 74.125.130.102 icmp_seq=2 ttl=126 time=72.679 ms
84 bytes from 74.125.130.102 icmp_seq=3 ttl=126 time=93.108 ms
84 bytes from 74.125.130.102 icmp_seq=4 ttl=126 time=71.368 ms
84 bytes from 74.125.130.102 icmp_seq=5 ttl=126 time=94.065 ms
</code>

<code js>
PC2> ip dhcp
DORA IP 192.168.4.3/24 GW 192.168.4.1

PC2> ping facebook.com
facebook.com resolved to 31.13.95.35

84 bytes from 31.13.95.35 icmp_seq=1 ttl=127 time=38.571 ms
84 bytes from 31.13.95.35 icmp_seq=2 ttl=127 time=38.801 ms
facebook.com icmp_seq=3 timeout
84 bytes from 31.13.95.35 icmp_seq=4 ttl=127 time=27.483 ms
84 bytes from 31.13.95.35 icmp_seq=5 ttl=127 time=38.713 ms
</code>

===== Test Case =====

Bagaimana jika koneksi dari R1 dan R4 terputus, apa yang harus dilakukan oleh seorang admin?

==== R1 ====

<code js>
no ip route 192.168.5.0 255.255.255.0 192.168.2.2
no ip route 192.168.6.0 255.255.255.0 192.168.3.2
no ip route 192.168.4.0 255.255.255.0 192.168.3.2
no ip route 0.0.0.0 0.0.0.0 192.168.3.2
</code>

<code js>
ip route 0.0.0.0 0.0.0.0 192.168.2.2
</code>

==== R2 ====

<code js>
no ip route 192.168.1.0 255.255.255.0 192.168.2.1
no ip route 192.168.3.0 255.255.255.0 192.168.2.1
no ip route 192.168.4.0 255.255.255.0 192.168.5.1
no ip route 192.168.6.0 255.255.255.0 192.168.5.1
no ip route 0.0.0.0 0.0.0.0 192.168.5.1
</code>

<code js>
ip route 192.168.1.0 255.255.255.0 192.168.2.1
ip route 0.0.0.0 0.0.0.0 192.168.5.1
</code>

==== R3 ====

<code js>
no ip route 192.168.1.0 255.255.255.0 192.168.5.2
no ip route 192.168.2.0 255.255.255.0 192.168.5.2
no ip route 192.168.3.0 255.255.255.0 192.168.5.2
no ip route 192.168.4.0 255.255.255.0 192.168.6.2
no ip route 0.0.0.0 0.0.0.0 192.168.6.2
</code>

<code js>
ip route 192.168.1.0 255.255.255.0 192.168.5.2
ip route 192.168.2.0 255.255.255.0 192.168.5.2
ip route 0.0.0.0 0.0.0.0 192.168.6.2
</code>

==== R4 ====

<code js>
no ip route 192.168.1.0 255.255.255.0 192.168.3.1
no ip route 192.168.2.0 255.255.255.0 192.168.3.1
no ip route 192.168.5.0 255.255.255.0 192.168.6.1
</code>

<code js>
ip route 192.168.1.0 255.255.255.0 192.168.6.1
ip route 192.168.2.0 255.255.255.0 192.168.6.1
ip route 192.168.5.0 255.255.255.0 192.168.6.1
</code>