Designing a internet module

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Jun 14th, 2009
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Hi,

My Internet Module Includes following devices: two cisco 3845, three 3750 one ASA 5540

They are connected as shown in figure (attachment).

Both internet routers and switch are meant for redundancy from different ISPs. ASA is having Dmz where mail and web servers has to be placed(i.e. static nat is required).

what will be the best possible way to make the servers (web and mail) available on the internet?

note: both the ISPs use different subnets and the ip of isp A is not routable in isp B.

wher should i NAT the global IPs ? on routers or ASA ?





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htarra Fri, 06/19/2009 - 13:16
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To pass traffic from ISPA to ISp B you have to config NAT on router connected to ISP.


Inorder to make the mail and web server avialable to internet you have to configure static NAT from DMZ to outside on ASA.


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