Tag: nat

ASA and Proxy ARP

Wow.  A new entry.  Everyone sit down before you pass out. I’ve got a real-world example for you today.  We have an ASA 5540 installed at a business unit with interfaces in multiple networks, including one containing the production servers…

Port Forwarding on the ASA/FWSM/PIX

Here’s a simple one since I haven’t updated in a while. I have my ASA 5505 at home and want to forward TCP/80 traffic to my public IP to my webserver at 10.10.10.10. There are two steps here — forward…

NAT on a PIX/ASA

NATting sucks and can be confusing. I’m sure everyone agrees to that, but you have to use it at some times. In a PIX/ASA, it’s easy to configure a simple setup, but can be super-complicated in larger networks. In a…