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redundancy on cisco asa

Posted on 2014-01-28
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Last Modified: 2014-02-14
Hi Guys,

I have two ISPs and I was wondering could i use an interface for each ISP and set one to primary and set one to secondary??

So, if the primary went down traffic could go out on the 2nd one?
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Question by:jonathanduane2010
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7 Comments
 
LVL 12

Expert Comment

by:Infamus
ID: 39814830
add two different default route.

For example, if ISP1 10.1.1.1 and ISP2 172.20.1.1

ip route 0.0.0.0 0.0.0.0 10.1.1.1
ip route 0.0.0.0 0.0.0.0 172.20.1.1 10

you can also use object tracking....
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LVL 57

Expert Comment

by:giltjr
ID: 39814871
Are you using this for outbound traffic only?

Or are you hosting services that require inbound access?
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Author Comment

by:jonathanduane2010
ID: 39814903
no, it would be for emergencies only really, so outbound traffic would be all we need....
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LVL 57

Accepted Solution

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giltjr earned 1840 total points
ID: 39814939
Then using object tracking with SLA and changing the default route.

Replace 1.1.1.1 with the IP address of ISP#1 router and 2.2.2.2 with the IP address of ISP#2's router.


route outside 0.0.0.0 0.0.0.0 1.1.1.1 1 track 1
route backup 0.0.0.0 0.0.0.0 2.2.2.2 254

sla monitor 1
type echo protocol ipIcmpEcho 1.1.1.1 interface outside
num-packets 3
frequency 10

sla monitor schedule 1 life forever start-time now

track 1 rt 1 reachability

Ref:

http://www.cisco.com/en/US/products/hw/vpndevc/ps2030/products_configuration_example09186a00806e880b.shtml
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Author Comment

by:jonathanduane2010
ID: 39815029
great thank you!

I am using the ASDM launcher, can i input these commands through the CLI ?
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LVL 57

Expert Comment

by:giltjr
ID: 39815122
Yes or you can scroll down some on the above link, I'm fairly sure that it shows how to do it via the ASDM.
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LVL 57

Expert Comment

by:Pete Long
ID: 39815430
Don't forget you will need a sec plus licence!
Cisco ASA/PIX 8.x: Redundant or Backup ISP




Pete
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