I have gone over much of the documentation on the 2821. It primarily points out that it can only support a single 2 Port Layer 3 HWIC card. However that combined with the onboard interfaces will only give me a total of 4 physical routed interfaces.
What are my options if I require 6 physical routed interfaces in terms of physical card specifications?
Thank you for all you help
So John I am correct in my understanding that 4 interfaces is the physical maximum fro routed interfaces?
Thank you with the ideas for the 38xx but vlans won't work as some of the interfaces would run routing protocols.
Yes, for the 2821 4 physical routed interfaces is the limit.
You can still peer with a vlan interface rather than a physical interface although this is not on the actual physical interface as you say.