NAT dan Dynamic Routing

1

• NAT dan Dynamic Routing

2

• NAT

3
Menyiapkan interface

• Aktifkan ip aliasing
• ifconfig eth00 192.168.1.1 netmask 255.255.255.0
• ifconfig eth00 192.168.2.1 netmask 255.255.255.0

4
Konfigurasi

• Aktifkan paket forwarding (temporary)
• echo 1 gt /proc/sys/net/ipv4/ip_forward
• Aktifkan paket forwarding (permanen)
• buat script diatas dimasukkan kedalam rc.local
• vim /etc/sysctl.conf
• net.ipv4.ip_forward1

5
Menyiapkan table translasi

• Temporary
• iptables -t nat -I POSTROUTING -s
  192.168.1.0/24 -j MASQUERADE
• iptables -t nat -I POSTROUTING -s
  192.168.2.0/24 -j MASQUERADE
• Permanen
• iptables-save gt /var/lib/iptables/active
• tambahkan script iptables-restore lt
  /var/lib/iptables/acvite pada /etc/rc.local

6

• QUAGGA
• (Dynamic routing)

7
Installasi quagga

• apt-get install quagga

8
Konfigurasi

• Copy template konfigurasi
• cp /usr/share/doc/quagga/examples/zebra.conf.sam
  ple /etc/quagga/zebra.conf
• cp /usr/share/doc/quagga/examples/ospfd.conf.samp
  le /etc/quagga/ospfd.conf

9
Menyiapkan interface

• Aktifkan ip aliasing
• ifconfig eth0 10.252.108.23 netmask 255.255.255.0
• ifconfig eth00 192.168.1.1 netmask 255.255.255.0
• ifconfig eth00 192.168.2.1 netmask 255.255.255.0
• route add default gw 10.252.108.1

10
Konfigurasi terminal

• telnet localhost 2604
• en
• conf t
• router ospf
• network 10.252.108.0/24 area 0
• network 192.168.1.0/24 area 0
• network 192.168.2.0/24 area 0