Cisco Routing with Dual Wan for failover

Senario I have a network lan with 4 vlans going through a 6509 switch. I have a cisco 2921 router that we use as our firewall with Access list. I use access list/nat to route outside IP's to my inside servers.  I'd like to add a second ISP with another block of IP's for failover on the same router. I have DNS Failover setup on the WAN side with a 3 party. Just not sure where to start or if this is even possible.
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Jan SpringerConnect With a Mentor Commented:
it's a layer 3 feature which should be in the base.  i'll check and get some configuration to you.
Jan SpringerCommented:
You want IP SLA.  That configuration will monitor reachability to the end point and, when it's down, will set the next hop to the alternate ISP.
Scott_Smith24Author Commented:
Is that something I have to purchase extra or does that come buy default. Also will I need to set up separate Inbound Access List for the other WAN connection?
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