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Use a command to display the PPP username.
When PPPoE is enabled, you can use the command below to display the PPP username.
The PPP account is in red.
> ps | grep 'ppp'
7385 supervis 1904 S pppd -c ppp1.1 -i ptm0.1 -u email@example.com -p ******
7474 supervis 2136 R sh -c ps | grep 'ppp'
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