Need some config help on the ASA.
I got Lease line link on ethernet to my premises with following WAN IP.
i.e 122.x.x.114/30 and gateway 122.x.x.113.DNS server are 220.127.116.11 and 18.104.22.168.
Moreover I have pool of 16 ip adresses starting from 122.x.y.32/28-122.x.y.48/28.
I am planning network topology as following.
ISP--->ASA firewall(NAT Here)---->Switch--->Internal LAN.
My question is do I really need a router as i am getting link of ethernet int.I am planning to terminate the link on ASA ethernet int directly and PAT it there.So I am sure my 122.x.x.114/30 is to PATTED and traffic is to be routed to the remote gateway at ISP end i.e 122.x.x.113.
Even I want to use 5 server on public network.So I have to use 5 of the IP addresses out of the pool to STATIC NAT with my DMZ network.What the mask and subnet range is different than my PATTED IP.
Here want to understand will this work without a router in front of my ASA or ASA will serve the purpose.What is the command to provide dns IP on ASA (equivalent to ip name-server 22.214.171.124 on routers)?
Thanks in advance.