Configuring ASA 5506-X behind a Home Netgear ADSL router PPPOA

[jjwarr]

Hey Guys,

 I am a complete newbie to Cisco so excuse my ignorance,

I have just setup the device and want the Outside interface  to receive traffic from my  home Netgear broadband router and then pass it through to inside interface.

How do i go about doing this? I have tried different ways but none seem to work. 

All I want is the ASA to act as the firewall.

current setup is as follows



Netgear Router / Modem 10.0.1.1 (gets dynamic ip from ISP using PPPOA and does the NAT) Please note my router does NOT have bridge mode option
ASA 5506 Outside Interface ip 10.0.1.7 (Static)
ASA 5506 Inside Interface ip 192.168.1.1

The bit i can't work out it adding static routes and do I need to NAT on the ASA as the router already does that 

Thanks
J

[Rob Ingram]

Hi,
You will need to NAT on the ASA unless you have a static route on the netgear to route the 192.168.1.0/24 subnet to the ASA, without that the netgear will not know about the 192.168.1.0/24 network....unless you NAT the 192.168.1.0/24 network behind the outside interface of the ASA (which might be the easiest option).

You will need a static route on the ASA such as "route outside 0 0 10.0.1.1"

Post your config if you like and we can advise.

HTH

[jjwarr · Accepted solution]

Hi

Thanks for the response 

I resolved the issue by upgrading my home broadband to support PPPOE

Thanks

J