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Multiple NAT problem with DMZ

mshah2005
Level 1
Level 1

I am trying to place public servers such as Web Server, DNS Server and Outside Mail Server in dmz zone using separate dmz interface for each one. I was able to put Web Server successfully in DMZ using static nat. But when I tried putting other servers like DNS and Mail Server using static nat, I couldn’t get addresses translated from dmz interface to outside interface.

Inside network: 10.8.0.0/20

Outside network: 63.127.167.192/27

Web-dmz1: 192.168.0.0/24

Dns-dmz2: 192.168.1.0/24

Mail-dmz3: 192.168.2.0/24

I have attached the current running configuration from Cisco PIX 515E.

Current status: Inside network is behind firewall and is PATed. VPN is working fine… Web Server is placed in DMZ zone and outside people can access it, but not internally.

I have attached the running-config of PIX 515E....

I would appreciate if anyone could help me in this problem.

Thanks,

Mayur Shah (Network Analyst)

3 Replies 3

nkhawaja
Cisco Employee
Cisco Employee

sorry the config is not attached, could you make sure you have all the static and access-lists in place

the config is in attachment...

seems like the inside is not able to access dmz networks. these are the commands you need to add into your pix firewall

global (web-dmz1) 10 interface

global (dns-dmz2) 10 interface

global (mail-dmz3) 10 interface

global (citriz-dmz4) 10 interface

thanks

Nadeem