Firewall Wizards mailing list archives
Re: Skip the PDM
From: "Victor B. Williams" <vbwilliams () essvote net>
Date: Thu, 20 Nov 2003 09:38:12 -0600 (CST)
It's all a matter of perspective really. Cisco devices aren't for the faint of heart...and really, if a client doesn't *need* to have a Cisco device present, why install it? However, I couldn't disagree with you more about PDM version 3.0. I think it's the best GUI for configuring any firewall on the face of the planet...and that's including all the firewall GUI interfaces I've used...the one included with WEBMIN for ipchains/iptables, lokkit, all the Linksys/D-link/SMC interfaces for their COTS firewalls, etc etc. Firewalls and their software isn't, and never will be a technology that's understood by the masses...if it was, there wouldn't be a need for this list. I think anyone who understands the methodology and functionality of a firewall should be able to configure one with or without the GUI interface. I've always done the basic setup of a Cisco firewall from the commmand line, and then proceeded with all the extracurricular stuff with the GUI (VPN connections, AAA authentication, etc). I think doing that, you mitigate any problems you might have. For the most part, once a Cisco device is setup with the IP addresses and routes on each interface, it rarely changes...so doing that through the GUI is going to be less efficient anyway. Robert Fenerty said:
Hi, Although I sense that many subscribers to this list are the of the ipchains/linux ilk, I thought I'd tell you about my experience configuring a PIX 501 at a client's site. A pretty standard setup, which took me THREE AND A HALF HOURS to install. I think we can all agree that I'm not a firewall wizard. Maybe an apprentice to the guy who mixes the mortar for the firewall. The PIX Device Manager (PDM) is a GUI-based app that runs as a web server on the PIX 501. The 501's a tiny SOHO box with a Command-Line Interface (CLI) fairly similar to those found on Cisco routers. The differences tripped me up a bit; like grep options on HP-UX if you were raised on Sun. So to "speed things up" I tried using the PDM. Bad idea. In my network design, the office network uses the 172.16.x.y network to avoid any routing problems that might arise when remote workers with 192.168.x.y home networks connect to the office via software VPN. So I tell the GUI that the "inside" interface is 172.16.1.1, and the DHCP pool starts at .2. Specify the gateway, DNS, etc. and you're done. Right? Wrong. I'm guessing that the PDM just collects command lines and sends them to the PIX. The first error pops up when "ip address inside 172.16.1.1 255.255.0.0" conflicts with the factory default DHCP pool, which starts at 192.168.1.2. So the interface IP isn't changed. And the request to change the DHCP pool doesn't match the still-unchanged factory IP address, so that's ignored too. At least the PDM pops up error messages, and it was pretty obvious to me what was going on. So I fixed it manually. But the client paid $500 for this box. And a $100 Linksys or SMC box wouldn't have had this problem. You'd think Cisco could do better. Then the DHCP server on the PIX wouldn't vend IP addresses. No sniffer handy, so I tried various debug options on the PIX. Finally got an error message from the DHCPD saying that DHCP wasn't enabled. This was odd, considering that "dhcp enable inside" and other dhcp settings were in place. I don't know what I did to kick start it, but it eventually started lending everyone IP addresses from its stingy pool of 32 DHCP leases. It was pretty easy to setup the rest of it. Anyway, the point of this message was to say that the PDM is a rotten little piece of software that only confuses things. So skip the PDM. Robert Fenerty _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
"Real men don't even use monitors! I've just got a guy that can draw real fast." Victor Williams Network Architect Election Systems & Software http://www.essvote.com vbwilliams () essvote net (402) 970-1100 CONFIDENTIALITY NOTICE: This e-mail transmission and any documents, files or previous e-mail messages attached to it may contain information that is confidential, protected by the attorney/client or other privileges, and may constitute non-public information. It is intended to be conveyed only to the designated recipient(s) named above. Any unauthorized use, reproduction, forwarding, distribution or other dissemination of this transmission is strictly prohibited and may be unlawful. If you are not an intended recipient of this e-mail transmission, please notify the sender by return e-mail and permanently delete any record of this transmission. Your cooperation is appreciated. _______________________________________________ firewall-wizards mailing list firewall-wizards () honor icsalabs com http://honor.icsalabs.com/mailman/listinfo/firewall-wizards
Current thread:
- Skip the PDM Robert Fenerty (Nov 20)
- Re: Skip the PDM Victor B. Williams (Nov 23)
- <Possible follow-ups>
- RE: Skip the PDM Crissup, John (MBNP is) (Nov 23)
- RE: Skip the PDM Sloane, David (Nov 23)
- RE: Skip the PDM Wes Noonan (Nov 24)
- RE: Skip the PDM Karl D. Mueller (Nov 23)