Internal-Data0/0 unassigned YES unset up up Interface IP-Address OK? Method Status Protocol The show interface ip brief command shows all physical and logical interfaces, their IP addresses, whether they are administratively up/down, and whether their line protocol is up/down. The show switch vlan command displays the VLANs and the physical ports assigned to each VLAN. VLAN1 and all the physical interfaces are administratively down. The only VLAN is VLAN1, and all the physical interfaces belong to it. Look at what the ASA’s default config contains. (You can also do a write erase and reload to wipe the config.) Right out of the box, with a blank config. Let’s start with an unconfigured ASA 5505. So a good use for this third subnet would be as a DMZ or a guest subnet. The third VLAN, however, can only be configured to initiate traffic with one other VLAN. The first two VLANs can be configured to communicate with any of the other three VLANs. In this post, I am going to look how to configure a third VLAN on a Cisco ASA with a Base License, in Routed Mode. (2 active VLANs in 1 bridge group, plus 1 active VLAN for failover) (3rd VLAN can initiate traffic to only one other VLAN) Same hardware, but the Security Plus license unlocks more features, such as the number of VLANs that can be configured. With my cable connection at home I get allocated 3 IP's so one runs to pfSense and the second is split to my lab which goes to my ASA or one of my ISR's (depending on what I'm doing that week).The ASA 5505 comes in two flavors: Base License and Security Plus license. That or the new 5500-X Fire=Power model ASA's ![]() Ports need opening, ports needing forwarding, changes made, modern internet connections? R7000 with third party firmware will beat its pants in configuration and features. I had the same idea years ago, but in an ever changing home "production" environment like most of us are in, the ASA is better tasked for the lab. The ports are only 100Mb, so that throws any internet connections over that speed (and some near it, depending on how advanced the firewall and rules get) as it will saturate it fairly quick. Base security Licensed ASA's only allow 50 internal hosts (double NAT with another router to get around this, but then whats the pioint) and upgrading requires an extra license (see: 'show lic" command) Same with VPN access. ![]() Unless you have one of the later models, you will have to upgrade the RAM to be able to handle the 8.x (and flash for 9.x) or greater images. Without smartnet you can't officially get the latest versions of IOS and running "found" versions feels a little shady when you go and hunt them down from websites entirely in Russian(puts tin foil hat on) Your IOS skills have to be on point to do proper config changes and even then there are differences to IOS than what runs on a normal ISR(1900 series router) You really miss just sitting in bed with a laptop and going to a web configuration page to make a quick change when every time you need to tweak something you have to get out the serial cable (or use a network serial console) and find a computer with Java, wait for it to update, or load up 's expected in a production environment but I don't like doing it at home. Using ASDM requires Java, which is a pain if you need to make a quick config. I tried doing this, and while the ASA has a lot going for it, it is getting dated. As a Secondary router for a lab, especially to get used to Cisco Security Devices, yes.
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