Aaron's Worthless Words

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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

ASA + HSRP/VRRP/GLBP = undef

I use Google Analytics to track the 2 or 3 hits I get a day, and sometimes I see some interesting search terms. Yesterday, some googled up the term “does the ASA 5505 run HSRP”; I think that deserves a short article. The ASA and PIX firewalls don’t actually

DHCP on the ASA 5505

Let’s keep going with our example setup on the ASA 5505 and set up DHCP on this guy. You can set it up to either forward (relay) DHCP requests to a DHCP server somewhere or have it be the DHCP server. Let’s do it. To set up DHCP

Setting Up VLANs on an ASA 5505

I’ve had my ASA 5505 in place at home on my Comcast cable for a few weeks now, and, let me tell you, this thing rocks. I did, however, have a few problems finding a clear answer on how I could set up my VLANs. It turns out that

Default Route via DHCP on an ASA 5505

I finally got my ASA 5505 up and running at the house, but I ran into a little problem — the box wouldn’t add the DHCP-provided default route into its routing table. That one threw me for a loop since the box is made for SOHOs, but it makes sense