IPv4 Netmask reference

A netmask is a 32-bit mask used to divide an IP address into subnets and specify the networks available hosts. In a netmask, two bits are always automatically assigned. For example, in 255.255.225.0, "0" is the assigned network address; and in 255.255.255.255, "255" is the assigned broadcast address. The 0 and 255 are always assigned and cannot be used. There are plenty of these netmask references out there, but I prefer my own: hence this Tech...

Read More

Download Tool

Packet tracer  (Cisco Simulator) Putty&nbs...

Read More

masqurade nat cisco using overloading

Prerequerties Read the article guncyber-net.blogspot.com/2012/11/masqurade-nat-on-cisco-router.html first This is simple example for overloading : ================================================================ interface ethernet 0  ip address 10.10.10.1 255.255.255.0  ip nat inside !--- Defines Ethernet 0 with an IP address and as a NAT inside interface. interface ethernet 1  ip address 10.10.20.1 255.255.255.0  ip nat inside !--- Defines Ethernet 1 with an IP address and as a NAT inside interface. interface serial...

Read More

Services And support

Services : 1. Setup and manage Mikrotik router BGP router Bandwidth Management Firewall And other networking services  2. Setup and manage Cisco router BGP Router Bandwidth Management Firewall Telephony services And other networking services 3. Setup and manage Cisco switch Vlan  Trunk Telepony services 4. Setup dan manage Ubuntu server Basic server Web server Mail server (zimbra) Smtp Firewall And other services  5. Internet services provider Dedicated Internet Services Wireless Connection Dedicated Internet Services Fiber...

Read More

Installing squid on Ubuntu

Step 1 Update adn upgrade system : sudo apt-get update sudo apt-get upgrade Step 2 Install squid proxy server sudo apt-get install squid Stpe 3 Copy the original squid the configuration cp /etc/squid/squid.conf /etc/squid/squid.conf.original Step 4 Setting up configuration of squid 1. To set your Squid server to listen on TCP port 8888 instead of the default TCP port 3128, change the http_port directive as such:     http_port...

Read More

Masqurade NAT On Cisco Router

Step 1  Defining NAT Inside and Outside Interfaces : The first step to deploy NAT is to define NAT inside and outside interfaces. You may find it easiest to define your internal network as inside, and the external network as outside. However, the terms internal and external are subject to arbitration as well. This figure shows an example of this. Step 2  Allowing internal user to access internet : You many...

Read More

Assign IP address Mikrotik

Using command line IP address management can be accessed under the /ip address submenu: [MikroTik] ip address> IP addresses are given to router to access it remotely and to specify it as a gateway for other hosts/routers. print Show IP addresses get get value of item's property find Find addresses set Change IP address properties add Add IP address remove Remove IP address enable Enable IP address disable Disable IP address comment Set comment for IP address export Export list of IP addresses [MikroTik]...

Read More

Assign IP address to Cisco Router

Step 1 Connecting the computer and the router using Console Cable. Step 2 Entering to the router using Putty aplication like this picture ...

Read More

Changing Ip Address On Ubuntu

To change a IP Address on Ubuntu, Yo just need to edit file interfaces on /etc/network directory. This is step for change IP address on Ubuntu : 1. Open interfaces file on /etc/network directory using nano, like this. ...

Read More