Table of Contents
Cisco Labs : To many Static routing (UAS Praktikum Jarkom )
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
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
R2
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
R3
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
R4
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
Testing
- Internet Connection from R4
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
- Internet Connection from LAN_1 and LAN_2
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
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
Test Case
Bagaimana jika koneksi dari R1 dan R4 terputus, apa yang harus dilakukan oleh seorang admin?
R1
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
ip route 0.0.0.0 0.0.0.0 192.168.2.2
R2
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
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
R3
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
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
R4
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
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