Senin, 28 Maret 2011

konfigurasi rauter


Langkah Kerja :
·         Yang paling utama sediakan Pc dalam keadaan baik , Os linuk (debian 5) dan LAN Card tambahan  untuk client,
·         Lakukan konfigurasi pada Terminal
·         Ketik perintah berikut :
Pico /etc/network/interfaces
·         Kemudian tambakan tulisan di bawah ini :
# the secondary network interface
Auto eth1
Iface eth1 inet static
                Address 172.16.1.1
                Netmask 255.255.255.192
                Network 172.16.1.0
                Broadcast 172.16.1.63
·         Sehingga menjadi seperti ini :
# the primary network interface
Allow-hotplug eth0
Iface eth0 inet static
               Address 192.168.30.10
               Netmask 255.255.255.0
               Network 192.168.30.0
               Broadcast 192.168.30.63
               Gateway 192.168.10.62
               # dns-* option are implemented by the resolvconf package,if installed
               Dns-nameservers 192.168.1.1
               Dns-search autosmk2bna.sch.id
# the secondary network interface
Auto eth1
Iface eth1 inet static
                Address 172.16.1.1
                Netmask 255.255.255.192
                Network 172.16.1.0
                Broadcast 172.16.1.63

·         kemudian restart networknya
/etc/init.d/networking restart
(reconfiguration network interfaces. . . . . . . . . .done
·         restart komputernya
reboot
·         ketik perintah di bawah ini :
ifconfig | less
 eth0     eLink encap:Ethernet HWaddr 00:0c:29:32:97:44
                 inet addr:192.168.1.1 Bcast:192.168.1.63 Mask:255.255.255.192
                 inet6 addr: fe80::20c:29ff:fe32:9744/64 Scope:Link
                 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
                 RX packets:5 errors:0 dropped:0 overruns:0 frame:0
                 TX packets:82 errors:0 dropped:0 overruns:0 carrier:0
                 collisions:0 txqueuelen:1000
                 RX bytes:400 (400.0 B) TX bytes:3660 (3.5 KiB)
                 Interrupt:19 Base address:0x2000

   eth1     Link encap:Ethernet HWaddr 00:0c:29:32:97:4e
                 inet addr:172.16.1.62 Bcast:172.16.1.63 Mask:255.255.255.192
                 inet6 addr: fe80::20c:29ff:fe32:974e/64 Scope:Link
                 UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
                 RX packets:148 errors:0 dropped:0 overruns:0 frame:0
                 TX packets:100 errors:0 dropped:0 overruns:0 carrier:0
                 collisions:0 txqueuelen:1000
                 RX bytes:12617 (12.3 KiB) TX bytes:9610 (9.3 KiB)
                 Interrupt:16 Base address:0x2080

     lo         Link encap:Local Loopback
                 inet addr:127.0.0.1 Mask:255.0.0.0
                 inet6 addr: ::1/128 Scope:Host

·         lalu pastikan setinggan IP address di windows :
IP address:                         172.16.1.2
Subnet mask                     255.255.255.192
Default geteway              172.16.1.1

Preferred DNS server    172.16.1.1
·         lalu kita cek koneksi dari server itu sendiri :
ping 192.168.1.62
tersambung ?
·         lau kita cek koneksi dari client itu sendiri :
ping 172.16.1.62
tersambung ?
·         ketik perintah ini :
pico /etc/sysctl.conf

·         hilangkan tanda # pada baris :
# uncomment the next line to enable packet forwarding for IPv4
# net .IPv4.ip_forward=1
·         seperti ini :
·         # uncomment the next line to enable packet forwarding for IPv4
 net .IPv4.ip_forward=1
·         Lalu ketik perintah ini :
Iptables –t nat –n –L

Bila tampil seperti ini berarti sudah berhasil :
  Chain PREROUTING (policy ACCEPT)
                 target prot opt source destination
                 Chain POSTROUTING (policy ACCEPT)
                 target prot opt source destination
                 MASQUERADE all -- 0.0.0.0/0 0.0.0.0/0
                 Chain OUTPUT (policy ACCEPT)
                 target prot opt source destination


·         Catatan :
Cara setingan IP address pada server & client
 Server :
ETH0
IP 192.168.30.10
MS 255.255.255.0
AG 192.168.30
ETH1
IP 172.16.1.1
MS 255.255.255.192
AG 192.16.1.2
Client
Client 1
IP 192.168.10.9
SM 255.255.255.0
DF 192.168.30.10
Client 2
IP 172.16.1.2
SM 255.255.255.0
DF 192.168.30.1