Initial IP configuration of Cisco PIX 506e

Posted on 2005-03-01
Medium Priority
Last Modified: 2013-11-16

We have just attempted to install a 506e firewall.

By default, it uses the IP - currently the same as our router.

We tried to change the pix to be .240, but got a DHCP spool error - although DHCP is disabled.

As a result, we had no internet connection.

Do we set our outside IP to be that of our WANs IP or our LANs primary DNS? It is currently that of our WANs IP.

Everything else it set as factory default - does anyone have any ideas as to what the problem could be?

Thanks in adavnce.

Question by:lunchboxbill
  • 2

Expert Comment

ID: 13430362
The 506 comes preconfigured with dhcp enabled.  

Where is the router located? Is it yours or the isp?


Author Comment

ID: 13430443
the router is ours - its sat infront of the firewall, behind the outside internet line.

we disabled the DHCP.

Expert Comment

ID: 13430713

So your router that is connected to internet acts as a nat device, right?

For example.
The outside ip should be a wan ip. if your internet router has .1 assign the outside interface .2

If you wanna stay with the same subnet on the inside you have to use nat 0.
After that you have to assign a default route on the pix to the internet router.


Accepted Solution

CetusMOD earned 0 total points
ID: 13853214
Closed, no points refunded.
Community Support Moderator

Featured Post

The IT Degree for Career Advancement

Earn your B.S. in Network Operations and Security and become a network and IT security expert. This WGU degree program curriculum was designed with tech-savvy, self-motivated students in mind – allowing you to use your technical expertise, to address real-world business problems.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Use of TCL script on Cisco devices:  - create file and merge it with running configuration to apply configuration changes
This past year has been one of great growth and performance for OnPage. We have added many features and integrations to the product, making 2016 an awesome year. We see these steps forward as the basis for future growth.
Both in life and business – not all partnerships are created equal. As the demand for cloud services increases, so do the number of self-proclaimed cloud partners. Asking the right questions up front in the partnership, will enable both parties …
As a trusted technology advisor to your customers you are likely getting the daily question of, ‘should I put this in the cloud?’ As customer demands for cloud services increases, companies will see a shift from traditional buying patterns to new…
Suggested Courses

621 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question