We have a Police Department network which accesses services such as email, internet, file sharing/printing from the City Hall network. I want to setup a firewall in such a way that the Police Department can access everything on the City Hall network. I want nobody except the servers at City Hall be able to talk to servers at Police Department.
The Police Department is connected to City Hall using a fiber trunk.
The Police Department network is 172.22.0.0 and there gateway interface to City hall is 172.22.9.1
The City Hall network is 10.0.0.0 network.
Any help with a sample access list will greatly help.