Virtual private network: secure and private aspects and their solutions

Today Various Companies has issues of secure data for increasing productivity provides more flexible work arrangements for their employees as well as users also. This Paper introducing a secure model for vpn and for securing data. The security architecture that addresses all the issues of protecting every node of data, whether data is internal or external. Today data network uses multiple technologies such as GSM Evolution (EDGE), wide band CDMA (WCDMA) and CDMA 2000 group of technologies.