Router throughput for Ethernet WAN connection

[tahequivoice]

Hi all, I am looking to find the correct router for a 50 Mbps Ethernet connectin that is for Internet traffic. It will need to support 50 Mbps throughput, along with routing protocols for BGP, and maybe NAT/ACL's.  It most likely will be a used router, in the 2800 series.  I'm thinking a 2821 would work, but need to make sure before I pass it on to the customer. They currently have a 3660 they were thinking of using, but I think it would be too weak, and probably only pas 30Mbps at the most before it chokes.  They are a mini ISP with their own ASN, Tier 3.

[Eehab Suliman]

Cisco Router capacities are as follows:

Cisco 2811 up to 2MB WAN

Cisco 2821 up to 6 MB WAN

Cisco 2851 up to 10 MB WAN

Cisco 3825 up to 20 MB WAN

Cisco 3845 up to 45 MB WAN

Cisco 7200 >> 45 MB for example  100 MB Ethernet, choose 7201 with NP-G1 processor

Please remember to rate answers that are relevant to your question.

[vmiller]

2951  75Mb

3935  100Mb

[vmiller]

2951  75Mb

3935  100Mb