ASA and 3com adsl router


I have an 3COM router which connects directly to the internet. I have a fixed public IP address but I want this IP address to be assigned to my ASA firewall instead of the 3com router.

Can anyone advise me on how I would do this? I was looking at bridged mode but wasnt sure what this is.
Who is Participating?

[Product update] Infrastructure Analysis Tool is now available with Business Accounts.Learn More

I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Bridge mode is what you need.  This would allow the IP from your service provider to make it through to your ASA.  That is if the provider is handing out the address via DHCP.  It could be PPPoE which in that case you would need to configure the ASA for PPPoE.  The correct setting for the 3Com in either case is in bridge mode.
Dan560Author Commented:
I dont think my service provider gives me the IP through DHCP. I might be wrong but when sent me the configuration instructions I needed to manually do it.

So if this is the case, do I set the 3com device to bridge mode and then configure the ethernet0 port with the public ip address using pppoe?
Dan560Author Commented:
Actually just some more information. When I connect to the internet via my 3com router I dont even need to enter any usernames or passwords. I just set it with the Public IP address that my isp sent to me. So if I set it to bridge mode, presumbly all I need to do on the ASA is to the configure the outside interface with the static IP address and subnet mask that my ISP gave me?
If thats the case you should just need to set the 3Com to bridge mode and assign the IP your ISP gave you to the ASA.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Hardware Firewalls

From novice to tech pro — start learning today.