Yamaha(config)#firmware-update http-proxy http://192.168.100.1 8080 (1)
Yamaha(config)#exit
Yamaha#show firmware-update (2)
url: http://www.rtpro.yamaha.co.jp/firmware/revision-up/swx3220.bin
http-proxy: http://192.168.100.1:8080
timeout: 300 (seconds)
revision-down: Disable
firmware revision for next boot: -
reload-time: -
reload-method: Normal