reply to robdorre
Re: [HELP] Cisco 2821 Metro will work as standard CPE devices are only required to support 802.3 specs.
The wifi HWIC only supports b/g/a... no N support.
IOS DHCP is RFC compliant and can use any of the RFC 2132 dhcp options.
It will also support 170K PPS with only IP routing enabled (theoretical backplane is 2 gbps with 1500 byte frames). Adding other technologies like filtering, qos, and telephony will reduce the PPS.