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NAT with dual ISPs


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#1 kazsiddiqui

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Posted 27 May 2011 - 05:41 PM

Dear All,
I am planning to configure dual ISP on ASA-5520 appliance.I would be using Public IPs from both the ISP pools. For my servers 172.16.98.15 and 172.16.98.20
NAT1 : 168.187.115.60------->172.16.98.15
NAT2 : 62.75.150.62------->172.16.98.20

Can anybody give me a sample configuration for this cenario?

Thanks in advance..
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#2 kamtec1

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Posted 14 June 2012 - 07:38 AM

Dear All,
I am planning to configure dual ISP on ASA-5520 appliance.I would be using Public IPs from both the ISP pools. For my servers 172.16.98.15 and 172.16.98.20
NAT1 : 168.187.115.60------->172.16.98.15
NAT2 : 62.75.150.62------->172.16.98.20

Can anybody give me a sample configuration for this cenario?

Thanks in advance..


Hi .

If it still needed .

Do you need a plan to create a network config ?

Or just a way to use the 2 IPs on net .


Good luck ,.
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#3 FS

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Posted 15 June 2012 - 02:08 PM

It would be easier to do this via ASDM tool.

We had two NATs in place when we were migrating from one ISP to another. Obviously it was only active in transition phase until all services were migrated to the new ISP.

There is nothing special about it, you would do the same NATing as you would do with one provider. The only thing you should worry about is that the traffic is router through the correct interface based on the translated external address range.





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