/29 .248
Net ke-12 202.25.10.88 (mulai .89) BUKAN .12 (SALAH)

router ospf 20

R2-JKT
net 210.16.10.0 0.0.0.255 a 20
net 30.30.30.0 0.0.0.3 a 20
net 50.50.50.0 0.0.0.3 a 20

R1-JKT
net 192.168.20.0 0.0.0.255 a 20
net 192.168.30.0 0.0.0.255 a 20
net 50.50.50.0 0.0.0.3 a 20
net 40.40.40.0 0.0.0.3 a 20

R2-ISP-A
net 30.30.30.0 0.0.0.3 a 20
net 40.40.40.0 0.0.0.3 a 20
net 10.10.10.0 0.0.0.3 a 0

R4-ISP-A
net 20.20.20.0 0.0.0.3 a 0
net 10.10.10.0 0.0.0.3 a 0
net 100.100.100.0 0.0.0.3 a 0
redist static sub

R1-ISP-A
net 100.100.100.0 0.0.0.3 a 0

R1-BALI
net 202.25.10.8 0.0.0.7 a 12
net 70.70.70.0 0.0.0.3 a 12

R2-BALI
net 192.168.110.1 0.0.0.255 a 12
net 60.60.60.2 0.0.0.3 a 12
redist static sub

R3-ISP-A
net 20.20.20.0 0.0.0.3 a 0
net 60.60.60.0 0.0.0.3 a 12
net 70.70.70.0 0.0.0.3 a 12

user sysadmin pass cisco (NOTE: UDAH MAX PRIVILEGE, GA BUTUH SECRET)
ena se cisco

https://www.cisco.com/E-Learning/bulk/public/tac/cim/cib/using_cisco_ios_software/cmdrefs/banner_motd.htm (REFERENSI BANNER MOTD)
DAN MASIH KURANG BANYAK CONFIG KECIL LAIN (ADA DI FILE LENGKAP YANG UDAH SELESAI)