This setup is only entitled for Streamyx users that subscribe to its fixed IP. It is important to perform this setup which creates a network environment between multiple computer users. For security matters, there is a firewall protection too.

There are two important issues to consider upon:

1. Setting up the network

   The setup diagram explain the network configuration and cabling.

   

   
   Splitter

   
   Asymmetric Digital Subscriber Line (ADSL) Modem

   
   Switch

   1. eth0
      IP Address: < your Streamyx IP >
      Netmask: < your Streamyx Netmask IP >
      Hostname: -
      Gateway: < your Streamyx Gateway IP >
      Primary DNS IP: < your Streamyx primary DNS >
      Secondary DNS IP: < your Streamyx secondary DNS >
   2. eth1
      IP Address: 192.168.0.1
      Netmask: 255.255.255.0
      Hostname: -
      Gateway: -
      Primary DNS IP: < your Streamyx primary DNS >
      Secondary DNS IP: < your Streamyx secondary DNS >
   3. Pc1
      IP Address: 192.168.0.2
      Netmask: 255.255.255.0
      Hostname: -
      Gateway: 192.168.0.1
      Primary DNS IP: < your Streamyx primary DNS >
      Secondary DNS IP: < your Streamyx secondary DNS >
   4. Pc2 and following
      IP Address: 192.168.0.3 (and xxx.xxx.x.4, 5, 6,…254)
      Netmask: 255.255.255.0
      Hostname: -
      Gateway: 192.168.0.1
      Primary DNS IP: < your Streamyx primary DNS >
      Secondary DNS IP: < your Streamyx secondary DNS >
2. Server Installation
1. Install the Redhat Linux 7.2 operating system with kernel 2.4 and the Ipchains.
2. Run dmesg and write down the IRQ and IO address for eth1.
3. Edit /etc/lilo.conf and append the line below above line boot=/dev/sda, replace 11 and 0×390 with your eth1 setting:

   append = “ether=11,0×390,eth1″

   run lilo to update the lilo loader

4. vi /etc/sysconfig/network-scripts/ifcfg-eth1

   DEVICE=eth1
   IPADDR=192.168.0.1
   NETMASK=255.255.255.0>
   ONBOOT=yes

5. vi /etc/sysconfig/network, and append following line:

   FORWADR_IPV4=yes

6. vi /etc/rc.d/rc.local and append following line:

   echo 1 > /proc/sys/net/ipv4/ip_forward
   /sbin/ipchains -A forward -j MASQ -s 192.168.0.0/24 -d 0.0.0.0/0
   /sbin/ipchains -P forward DENY

7. Restart server, shutdown -r now
8. Setup client PC using the network configuration of Pc1, Pc2…

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