Billion ADSL router undocumented endpoints

From Wikistix

These are a list of (hidden) URI endpoints available on (some?) Billion ADSL routers that have proved handy in the past.

http://192.168.1.254/adsl_diag.asp
Thorough ADSL diagnostics - requires modem reboot.
http://192.168.1.254/engdebug.html
Configure WAN port mirroring for tracing upstream PPPoE traffic.
http://192.168.1.254/ic.asp
Internal Controls - IP session counters, timeouts, NAT, etc.
http://192.168.1.254/iptv.asp
Noise margin settings (normal, IPTV, max line rate, etc).
http://192.168.1.254/PortCtrl.asp
Ethernet manual port control.
http://192.168.1.254/port_status.asp
Ethernet port status.
http://192.168.1.254/PPPoE_Reconnect_Timer.asp
Configure PPPoE reconnect time.
http://192.168.1.254/tcwd.asp
Software watchdog enable/disable.
http://192.168.1.254/wipcaEnable.asp
WAN IP Change Alert - email notification on IP change.
http://192.168.1.254/wireless_txpower.asp
Control wireless transmit power.