NAME

is − ISDN circuit switched Basic Interface

SYNOPSIS

device isdn0 at iop0 priority 120 (for 2CPU machine)
device isdn0 at hb0  priority 120 (for 1CPU machine)

DESCRIPTION

The is interface connects to an Integrated Services Digital Network (ISDN) via a Basic Access (2B+D, CCITT Recommendation I.412). 

The host’s Internet address is specified at boot time with an SIOCSIFADDR ioctl.  The is interface performs static mapping between ISDN addresses and Internet addresses based on information from the configuration files. 

NWB-236 supports several access methods to wide area networks.  The is represents one of these possibilities. 

SEE ALSO

intro(4N), inet(4F), dx(4), dl(4), isdn.conf(5), isdns(5), isdnload(8), isdnset(8), ifconfig(8C), RFC1144

DIAGNOSTICS

A variety of messages may be returned from the interface and reported via the kernel logging facility of syslogd(8).

BUGS

Only the Internet family of protocols is supported. 

NEWS-OSRelease 4.1C