in small corners, e.g. home, i use ubiquiti erx. i use the cli for config, and the gooey for watching traffic levels in pretty colors. they play well with both concast and at&t u-verse ipv4 and ipv6. in san jose $dayjob, i am stuck with a cisco asa for cpe, a 1990s retro antique providing job security for a thousand engineers who maximize complexity. randy