Cisco ASA 5520 question ?

Hi Experts


I have 2 cisco asa 5520, does cisco ASA 5520 have other method that could do redundancy beside HSRP ? if it does, what is the name of that method ? and how to set it up with 2 x cisco asa 5520 ? Thanks.
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SJCAAsked:
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JFrederick29Connect With a Mentor Commented:
Active/Active just allows you to do both, i.e. if it showed active/standby, you aren't licensed to do active/active.  In other words, you are fine to do active/standby.
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JFrederick29Commented:
Actually, they don't do HSRP.  The preferred method is to use the two in a failover pair.  The primary IP address floats between the two ASA's depending on which is active.

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00807dac5f.shtml
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SJCAAuthor Commented:
So only cisco router/switch do HSRP ?

Thanks.
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JFrederick29Commented:
Correct.  HSRP is an IOS feature.
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SJCAAuthor Commented:
Hi there,

Sorry I'm new to ASA, just last few questions:
what is single or multiple context mode ? How do we know if it's single or multiple context mode? Can we change from single to multiple context mode or vice versa from ASA ? and How do we do that ?

Thanks.

"Active/Standby Failover is available on units that run in either single or multiple context mode"
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JFrederick29Commented:
Multiple context mode lets you virtualize the Firewall meaning you could have contextA for customerA and contextB for customerB.  It would appear as if you "virtually" have two firewalls.  Stick with single context mode if you don't need the features multiple context mode provides as it is simpler.
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JFrederick29Commented:
By the way, the Firewalls come with two customer contexts and 1 admin context.  If you wanted more, you would need to buy additional licenses.

Here is a good overview of contexts:

http://www.ciscopress.com/articles/article.asp?p=426641
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SJCAAuthor Commented:
Hi there,

Last question, my firewall is now showing Failover: Active/Active, how do i change it to Active/Standby ? I'd like to go with the method active/standby for my pair of firewall. Thanks.
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SJCAAuthor Commented:
Thanks a lot.
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