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Initial IP configuration of Cisco PIX 506e

Posted on 2005-03-01
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Last Modified: 2013-11-16
Hi,

We have just attempted to install a 506e firewall.

By default, it uses the IP 192.168.1.1 - 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.

Kieran.
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Question by:lunchboxbill
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by:martyboy
ID: 13430362
The 506 comes preconfigured with dhcp enabled.  

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

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

we disabled the DHCP.
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by:martyboy
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.

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