The address space of single IPV4 address can be used to design the network for the system in the company. The network devices like routers,virtual router and gateway translate the Internet Service Provider’s (ISP) IP to private IP using Network Address Translator (NAT) as per the required number of systems in the company. The access to the private network can be made secure by using Wireless Enabled Protocol (WEP),Wireless Protected Access Pre Shared Key (WPA2) authentication and encryption techniques. Some companies even secure their network by using Hidden Service Set IDentifier (SSID) which does not broadcast the SSID. So that intruder cannot catch the network easily. All these techniques are vulnerable to Brute Force attack and some hacking commands. In this paper,the encryption of Service Set Identifier is made to prevent the access of network from intruders. This makes the intruder hard to get the decrypted SSID without knowing the algorithm used and its preshared key. The network device used for NAT maintains access list of system’s with its Media Access Control address to allow them to connect in the private network. The addition of encryption of SSID and maintaining access list increases the complexity to secure the connectivity in the private network. © 2016,International Journal of Pharmacy and Technology. All rights reserved.