ASA 5520 with NAT and HTTP traffic

Answered Question
Jun 21st, 2011

Hi Friends,

Shall i configure like this,

1. Static NAT to ISP1

    HTTP traffic to ISP2

2.if ISP1 fails ALL Static NAT and HTTP traffic should go through ISP2

pls guid me

I have this problem too.
0 votes
Correct Answer by varrao about 2 years 10 months ago

Hi Thiru,

Yes, if you configure it as per the doc, whenever ISP1 fails, all the traffic including http, would go through your ISP2 only.

Varun

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varrao Tue, 06/21/2011 - 05:32

Yes that is correct, it would failover to the ISP2

Thanks,

Varun

tasneemjan Tue, 06/21/2011 - 06:24

Hi,

You might want to look at static route tracking with sla monitor. You can use icmp to ping an ip address to ISP1 and if ASA sees a drop in ping reply it would populate a backup route in the routing table.

Regards

shasun@cisco Tue, 06/21/2011 - 06:47

Hi,

yes, that's correct,

Shall i configure ISP1 to take the Static NAT traffic, at the same time ISP2 take the HTTP traffic for user web browsing. Same time both ISP Will work? Suppsoe ISP2 goes down only internet browsing Stopped, that is not an issues,

if ISP1 fails, ISP2 will takecare of both traffic? is this possible in ASA5520 or we will go to router?

pls clarify me, i'm so confused

Correct Answer
varrao Tue, 06/21/2011 - 06:50

Hi Thiru,

Yes, if you configure it as per the doc, whenever ISP1 fails, all the traffic including http, would go through your ISP2 only.

Varun

shasun@cisco Tue, 06/21/2011 - 07:22

Hi,

So it require router to fulfill our requirements for configure loadbalance and failover.

Thanks for valued support,

thiru

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Posted June 21, 2011 at 5:27 AM
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