Aaron's Worthless Words

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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 and another containing the accounting servers. The production network

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 the port and open the

Star-crossed Lovers: HSRP/VRRP and NAT

I was doing an HSRP lab the other day, and a project from the past popped into my head. A customer had a host on a network that was separated from the rest of the network by a 1700 with a couple of FEs. They wanted that host to be

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 simple lab, we have set up an