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Posted by John Dailey on September 27, 2006, 5:15 pm
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Hello,
I'm having to configure a PIX 515e firewall that's on our network, but
know very little about networking. A 'show version' results in:
Cisco PIX Firewall Version 6.3(4)
Cisco PIX Device Manager Version 3.0(2)
We have a block of addresses that I would like to share between the DMZ
and Internal interfaces, with the PIX inspecting packets on the way.
Here's an example:
We're provided a network segment 1.2.3.128/255.255.255.128 with
1.2.3.129 as the gateway to the rest of the world.
I'd like to divvy up 1.2.3.130-254 between the internal and dmz, but it
seems like the best I can do is give 32 addresses to the dmz and 64 to
the internal, and then the other 32 are wasted on the outside interface.
I don't want to waste those extra addresses, but we want everything
behind the firewall.
Surely there's a way to do this? It seems like it should be a very
common scenario. The only vaguely workable solution I've found is to do
192.168.x.x networks on inside and dmz and then do static maps between
the addresses. But that is a configuration nightmare for us because DNS
is completely broken for our machines that need to access other of our
machines.
Any help is greatly appreciated.
-John Dailey
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Posted by www.BradReese.Com on September 27, 2006, 5:50 pm
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Hi John,
You may wish to investigate the Cisco PIX 515E Firewall Quick Start
Guide, Version 6.3 (PDF - 1 MB):
http://www.cisco.com/application/pdf/en/us/guest/products/ps4094/c1616/ccmigration_09186a00801dabbe.pdf
Found on Cisco PIX Documentation:
http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/tsd_products_support_series_home.html
Cisco PIX Device Manager Installation Guide, Version 3.0(1)
http://www.cisco.com/en/US/products/sw/netmgtsw/ps2032/products_installation_guide_book09186a008017a431.html
Found on Cisco PIX Device Manager Documentation:
http://www.cisco.com/en/US/products/sw/netmgtsw/ps2032/tsd_products_support_series_home.html
Hope this helps.
Brad Reese
BradReese.Com - Cisco Repair
http://www.bradreese.com/cisco-big-iron-repair.htm
1293 Hendersonville Road, Suite 17
Asheville, North Carolina USA 28803
USA & Canada: 877-549-2680
International: 828-277-7272
Fax: 775-254-3558
AIM: R2MGrant
BradReese.Com - Cisco Power Supply Headquarters
http://www.bradreese.com/cisco-power-supply-inventory.htm
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