Firewalls are designed to provide access control. We
proposed the method Cross Domain cooperative firewall
across different administrative domains by using key
management, in order to enable a privacy preserving and
security. By using this method the security will be increased
and controlled and also we can able to provide privacy and
security. We need to check Privacy-Preserving Range Comparison. If the rule exists we propose a cross domain
cooperative firewall protocol to optimize the network. If the
rule does not exist, the network performance collapse and
discards due to the entry of third party. Thereby privacy and
security fails. To overcome this bug we underwent a study of
cross domain cooperative firewall protocol. We implemented
our protocol in java and conducted extensive evaluation. The
results on real firewall policies show that our protocol can
avoid 98% of rules in a firewall. Future work is in order to
increase the system accuracy by extending the current
protocol. To find out the maximum speed of the packet to be
reached. Extending the process used for proxy server. Using
VGuard framework for sending and receiving the packets is
very faster.