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Newbie setting up an ASA 5510

Hello guys.

I am stuck here. I have reviewed the Cisco docs and it has gotten me nowhere.

I have a very basic setup and have gotten as far as this.

setup E/0 (outside)as 66..x.x.x

setup E/0 (inside)as

What are my next steps? I just need to get this thing to allow traffic through to the internet.

Thanks, NP


Re: Newbie setting up an ASA 5510


I assumed you already define the security level for each interfaces (sec0 for outside, sec100 for inside) and changed the status to active/up (use "no shut").

1) Configure PAT (single IP) or a range of Public IP within the range assigned by your ISP to be used by internal hosts to access outside/internet.

PAT (single IP) can use either outside interface IP or single unassigned IP from the same subnet.

Example of PAT using outside interface IP:

global (outside) 1 interface

nat (inside) 1

Example of PAT using unassigned IP (same subnet with outside IP/Public IP assigned by ISP):

global (outside) 1 66.x.x.5

nat (inside) 1

OR if you have a range of IP, use:

global (outside) 1 66.x.x.5-66.x.x.20 netmask - based on actual netmask

nat (inside) 1

2) Make sure you have route statement to reach outside and inside interface.

Route to outside:

route outside 66.x.x.x.1 --> example if your internet router is .1

3) Optional - Additionally, apply ACL to control outbound traffic from internal hosts

ASA(config)# access-list INSIDE extended permit ip any eq 53

ASA(config)# access-list INSIDE extended permit ip any eq 80

ASA(config)# access-list INSIDE extended permit ip any eq 8080

ASA(config)# access-group INSIDE in interface inside



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