I have always had my 3640 doing NAT. Now I want to let the ISP's routers that I am connected to do it.
My internal network is 192.168.144.96/27 is my 3640 VLAN1
My external networks are:192.168.1.0/29 ISP1 192.168.1.1 is a router doing nat or it can be configured with Public IPs.
192.168.0.0/29 ISP2 192.168.0.1 is a modem doing nat or it can be configured with Public IPs.
What I need to know is how do I get the VLAN traffic to the ISP's routers without doing NAT on th 3640?
I have read a little on bridging and it seems like that may be what I need, but I am not sure.
The reason I am doing this is because it is my understanding that NAT is completely process switrched and with the current bandwidth that I have available the 3640 can't process switch that many packets.
If I am in error and NAT does not have to be processed switched, I would be interested in hearing any input on how to no process switch NAT.
Thanks in advance for any help or advice.