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Dual wan routing question

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Jan 30th, 2014
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I'm having an issue with my MPLS. I'm not sure the best way to describe it other than an example.


I connect to a website owned by Chrysler.  Sometimes it works, oftentimes  portions of the site do not respond.


My first step is pinging the remote network.  If I get a reply, it is something like  wg.random#.dc.chrysler.com.  If I don't get a reply, I have to wait 10-15 minutes for another server to reply (wg.random#3.dc.chrysler.com).


When I traceroute during a Request timed out, I make it about 4 or 5 hops outside my MPLS router.  My MPLS provider blames it on everyone outside their network.


If I go out my backup ISP provider (Cox fiber), it always works all of the time.


I want to use Cox in 2 situations.  The first is when my MPLS goes down (floating static route).  The second is to send Chrysler traffic out my Cox interface when MPLS to Chrysler fails.


Because there are a ton of destination servers and a large IP range, is it possible to send traffic headed to Chrysler out my Cox interface while keeping all other traffic flowing through my MPLS network?

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Jon Marshall Thu, 01/30/2014 - 12:18
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Matt


Do you know the IP address(es) for the web site ?


Jon

mattshenefield Thu, 01/30/2014 - 12:26
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No.  The only way I can determine where they are connecting is with a ping. 


They are using a 3rd party to host and I've been unsuccessful in getting the range.  What I do know is that there is a large variance between both the first octect and the second octect.

Jon Marshall Thu, 01/30/2014 - 12:31
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Matt


Okay, i have never done it but i thought maybe you could use NBAR (to match the URL) together with PBR to direct the traffic out over the secondary link.


So a quick search and i found this thread although you may be able to find others. I can't guarantee it will work but it may be worth a try -


https://supportforums.cisco.com/thread/2051012


Jon

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