We’re having new satellite connection; the reason for this is to minimize cost. Please see below for network setup.
We want the primary connection going to internet is Gw2 (satellite) but if it reaches to 80% of bandwidth that’s the time the Gw1 will be opened. Is this possible in our setup? What configuration should be in GW1 & Gw2? Could anybody advise what the best solution is? Our goal is to minimize cost from rocketing prices to Gw1. Thanks.
There are two issues:
- how is the local LAN see this
- how will you switchover between the connections.
1. For the local LAN you can:
- run GLBP between routers
- bring the BOTH connections to one router
- add a 3rd router that will run EIGRP with both front routers; this way you can do unequal load balance for Internet connection.
2. Depends of the 1st part, decide upon one solution then we will move on.
Actually there's a provision for Cisco ASA between switch and corporate network. So this firewall control the load balancing and fail over?
There are a lot of ins and outs of a solution like this that are difficult to outline in a simple response. Simple "outbound" (requests for services coming from inside clients destined for external resources) failover is easiest, simple outbound load balancing is also possible without too much complication. Inbound services are much trickier if you're not employing BGP.
You can probably find a lot of articles online about doing something like this, but I have set this type of thing up in the past like this:
Cisco routers have a lot of cool, flexible features and using EEM, ip sla, tracking, and other tricks you can make some pretty cool things happen. But it also makes for a complicated, often convoluted configuration. On the other hand, there are products from other manufacturers made for this exact purpose. A few examples are Radware Linkproof, Fatpipe XTREME, (and F5 probably has a product for this, but I'm sure it will cost way too much for the average small business).
There r several ways to get this done
Like using EEM,ipsla for example
However one of the nice and intelligent features in cisco iOS is th Performance routing PfR this feature helps u to combine routing and ipsla capabilities together in more elegant way to achieve multiple ISP solutions and urs is one example
Please check the documents sections in this forum and look for PfR doc and dual ISP with pbr doc which i put simple examples there good to start with
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