[geeks] Router Speed

[Sridhar Ayengar]

Yo.

I'm trying to put together a standard configurations for routers that I 
can use in the various places I have equipment.  Some of the locations 
have reasonably fast internet connections (~50Mbps), but also there are 
going to be machines on two LAN interfaces.  One on the public subnet 
and one the private subnet.

If I'm using BSD, one of the BSD-compatible firewalls (PF?  NPF?  IPF?), 
IPSec tunnels connecting the locations to one another and NICs with some 
form of offload capability, how much CPU and memory would I need to be 
able to simultaneously route traffic between the two wired LANs, one 
WLAN and from the LANs to the internet?

The first configuration I would imagine would be between an 802.11n WLAN 
and two 1Gbps wired segments.  The second would be an 802.11n WLAN and 
two 10Gbps wired segments.

My goal in all of this is to minimize purchase price and power 
consumption.  Power consumption is probably a higher priority than 
purchase price.

Thanks.

Peace...  Sridhar