WAN Design Questions

[dtran]

Hi all !! Hope everyone is doing well !!

I've got a few remote sites with single WAN access to the MPLS cloud today and I am looking into a backup connection using internet access with some type of tunneling technology back to the data center. I am looking for inputs/suggestions on the type of tunneling technology use in this scenario.

I am using EIGRP to the MPLS cloud today and the ideal solution would meet the following requirements

1- Some level of load balance traffic between the MPLS link and the tunnel.

2 - Failback and failover should occur dynamically should one link fail.

3 - Currently internet access is being routed back to the data center. I would like internet access exit locally and only interested traffic get routed through the tunnel.

Thanks in advance for any inputs / suggestions !!

Danny

[Jeff Van Houten]

#2 can be accomplished with gre under IPSec. #3 can be handled with NAT and acls. #1, you might have some issues with.

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[Collin Clark]

1 & 2 can be handled by EIGRP. 3 can be configured in the advertisements of routes in BGP through your mpls cloud.


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[Joseph W. Doherty]

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The  Author of this posting offers the information contained within this  posting without consideration and with the reader's understanding that  there's no implied or expressed suitability or fitness for any purpose.  Information provided is for informational purposes only and should not  be construed as rendering professional advice of any kind. Usage of this  posting's information is solely at reader's own risk.

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Posting

#1 By default EIGRP will do equal cost load balancing, but it can be configured for unequal cost load balancing too.

#2 If you use EIGRP on the tunnels too, EIGRP will handle.

#3 Yea, you can, but when you share Internet interfaces with general Internet traffic and tunnelled traffic, you have unknown bandwidth across the tunnel (from remote sender's point of view).

[dtran]

Thank you all !! I appreciate your inputs / suggestions.

Would DMVPN be a good fit in this scenario ?

Thanks !!

Danny

[Joseph W. Doherty]

Disclaimer

The   Author of this posting offers the information contained within this   posting without consideration and with the reader's understanding that   there's no implied or expressed suitability or fitness for any purpose.   Information provided is for informational purposes only and should not   be construed as rendering professional advice of any kind. Usage of  this  posting's information is solely at reader's own risk.

Liability Disclaimer

In   no event shall Author be liable for any damages whatsoever (including,   without limitation, damages for loss of use, data or profit) arising  out  of the use or inability to use the posting's information even if  Author  has been advised of the possibility of such damage.

Posting

It may be, especially if you have lots of sites or you want your remotes to use dynamic IPs.