what is the best way to monitor if an ISDN backup interface is ready. If I monitor what is called the ISDNPHYSICAL interface (Interface Code) it is reported to be down. Should I take the interface for signaling instead (type: ISDN, Interface Code: ISDNL3)?
If a serial line is configured with 'enc ppp', it will show up with mode ONDEMAND which is not true. It is really a leased line. What can I do to differentiate it from the dialer interfaces?