I need to implement two level for firewalling for my Noc. 1st level Internet firewall and 2nd level intranet firewall for WAN users. The wan users has to cross this 2nd level firewall and go to 1st level firewall to access dmz server from wan (intranet) .
Please suggest some solution for this
I have two sets for firewall dedicted for this PIx 535 2 pairs
Any case study or any one implemented similar thing please share your design or give me some tips on proceeding with this setup