OK, some terminology. We've got physical networks. They are bound by routers. Anytime a packet goes through a router, it is moving from one physical network to another. Then you have a logical subnet. This is what actually gets addressed. It is possible to have multiple logical subnets on one physical network, although not recommended. Each device can only directly communicate with other members of the same logical subnet. A router would have to "translate" between the two logical subnets.
Now, in the scenario you described, you have two logical subnets on one physical network (that's what the secondary address does). Also, the two logical subnets consume all your address space. You mentioned partitioning off subnets for customers. Does this mean each customer gets a seperate physical network? And do you need to provision networks for WAN links? Here would be one way to do it. Take the .137.X network off the main router (Call it R1). Get a second router (R2) for this customer. Setup a point-to-point connection between the two. Now, R1-E0 has an address of 63.142.136.1/24. Assign R1-S0 to 63.142.137.1/30 and R2-S0 to 63.142.137.2/30. This is the WAN connection. Then on R2-E0, assign address 63.142.137.33/27. The default gateway for the hosts on this network would be 63.142.137.33 and the broadcast would be 63.142.137.63. And on a correct built network, the hosts (servers) never need to have route add commands. Now if you are doing this all on one router, you just need to add a secondary address of 63.142.137.33/27 (this would require you take off the 63.142.137.1/24 address first). This creates a logical subnet on your existing physical network. I hope this made some sense to you. If you have questions, I'll be lurking around here somewhere. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=36421&t=36400 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
