Re: NAT with redundancy

thanks all,

It is with only one Router , so hope NAT / Redundancy with HSRP will not
match the requirement.

Now customer agreed to have both Servers as active/active , So i have
checked the NAT with rotary type in a lab environment , but still i am
facing an issue that even one server is down router is trying to translate
to that down server and send traffics . so it is failing 50 %.
How can it be solved ? can anyone advise me...

Regards,
Anbu.

On Tue, Jun 1, 2010 at 11:05 AM, Narbik Kocharians <narbikk_at_gmail.com>wrote:

> Anbu,
>
> David's recommendation is a pretty good one, but you can do NAT /
> Redundancy using HSRP, if you need a lab Unicast me and i will send you one.
>
> On Tue, Jun 1, 2010 at 2:03 PM, David Bass <davidbass570_at_gmail.com> wrote:
>
>> What you really want to do is load balancing or clustering. NAT is not
>> the
>> correct mechanism for this, and you would be better off doing Windows
>> clustering (assuming it's a windows box), or some other form of cluster
>> server app. That's if you don't have a LB type device.
>>
>> As a last resort you could do EEM...
>>
>> On Mon, May 31, 2010 at 11:27 AM, Ryan West <rwest_at_zyedge.com> wrote:
>>
>> > Anbu,
>> >
>> > > -----Original Message-----
>> > > Sent: Monday, May 31, 2010 12:17 PM
>> > > To: Joseph L. Brunner; Cisco certification
>> > > Subject: Re: NAT with redundancy
>> > >
>> > > Thanks Joe ,
>> > >
>> > > i have some more to get understand regard this and expect your help ,
>> > >
>> > > My exact requirement is, in your example the outside global
>> > (12.207.43.148)
>> > > should translate to 192.168.1.50 . if 192.168.1.50 is not available
>> only
>> > it should
>> > > be translated to 192.168.1.52.
>> > >
>> > > So is there any method to do the NAT with IP SLA to check 192.168.1.50
>> is
>> > up
>> > > / down , then if it is down it want to translate to 192.168.1.52.
>> > >
>> >
>> > I don't think this is possible with NAT by default. You could write an
>> > EEM script to do that though, track the state of your IP SLA and trigger
>> the
>> > proper CLI commands.
>> >
>> > -ryan
>> >
>> >
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>>
>>
>
>
> --
> Narbik Kocharians
> CCSI#30832, CCIE# 12410 (R&S, SP, Security)
> www.MicronicsTraining.com
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Received on Tue Jun 01 2010 - 18:00:23 ART