hardware radius proxy

hi - is anyone aware of a hardware device which can do radius proxying,
chosing targets according to the username domains?

the advantages of a hardware device are:
1. fast reboot times
2. possibly faster packet processing
3. lower maintenance and support compared to a general purpose OS

it seem silly to run a full OS on general purpose hardware when proxyign is
essentially something that a switch/router/load balancer class device can
do. we already have layer 7 devices which do "deep inspection" of packets.

google didn't return any useful results.

tariq

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