membuat pc router dengan ubuntu server 10.04 (lucid lynx)

klik terminal, edit file interfaces dengan ketik

# nano /etc/network/interfaces

auto eth0 (koneksi internet)
iface eth0 inet static
address 192.168.1.2
netmask 255.255.255.0
network 192.168.1.0
gateway 192.168.1.1 (IP modem)
broadcast 192.168.1.255

auto eth1 (koneksi ke LAN)
iface eth1 inet static
address 192.168.0.1
netmask 255.255.255.0
network 192.168.0.0
broadcast 192.168.0.255

lalu save

setelah itu edit file sysctl.conf

# nano /etc/sysctl.conf

cari tulisan : sysctl net.ipv4.ip_forward=1

aktifkan dengan menghilangkan tanda “#”

lalu save

lalu kita buat routing nya

# iptables -t nat -A POSTROUTING -s 192.168.0.0/255.255.255.0 -d 0/0 -j MASQUERADE

sekarang kita buat routingnya permanen supaya apabila pc router nya di reboot settingan routingnya tetap jalan, dengan mengedit file rc.local

# nano /etc/rc.local

tambahkan :

iptables -t nat -A POSTROUTING -s 192.168.0.0/255.255.255.0 -d 0/0 -j MASQUERADE
exit 0

lalu save

sekian :D

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