|The Care and Feeding of ISDN4BSD|
|10 Setting up a||10 Setting up a||10.2 sppp and isp0|
10.1 isdnd.rc Setup
This is the isdnd configuration file for out example setup:
# isdnd.rc for hmpc.hcs.de
# last edit-date: [Fri Feb 26 11:21:41 1999]
# SYSTEM section: global configuration parameters
ratesfile = /etc/isdn/isdnd.rates # name & location of rates file
useacctfile = yes # generate accounting info to file
acctall = on # generate info for everything
acctfile = /var/log/isdnd.acct # name & location of accounting file
rtprio = 25 # modify isdnd's priority
# ENTRY: PPP over ISDN
name = I4BPPP # name for reference
usrdevicename = isp # ipr, tel, rbch
usrdeviceunit = 0 # unit number
isdncontroller = 0 # controller to use or -1 to use any
isdnchannel = -1 # channel (1/2) to use or 0 or -1 for any
# numbers used to verify at DIAL IN
local-phone-incoming = 241 # this is my number
remote-phone-incoming = 581 # this one can call in
# numbers used to DIAL OUT
local-phone-dialout = 241 # this is my number
remote-phone-dialout = 581 # i call this number
dialin-reaction = accept # accept, reject, ignore, answer
dialout-type = normal # normal / calledback
b1protocol = hdlc # hdlc, raw
idletime-incoming = 30 # 3 seconds idle timeout
idletime-outgoing = 30 # 3 seconds idle timeout
ratetype = 0 # ratesfile entry to use
unitlength = 60 # unitlength to assume
dialretries = 2 # # of dial retries
recoverytime = 5 # time to wait between 2 dial tries
What it does:
First, the system section specifies some obvious things you already know: the location of my ratesfile, i want to use an accounting file and the type of accounting information and the location of my accounting file. Also, i'd like to run my isdnd at realtime priority and this priority shall be 25. Thats all for the system section.
The entry section first defines a symbolic name. This name is used for example in the accounting records or on the full screen display.
Then the usrdevicename and the usedevicenumber are configured. This two items configure the device and unit number a B-channel is connected to (in the kernel) after a successful connection is made to a remote site.
The isdncontroller and isdnchannel specify which ISDN card (in case multiple ISDN cards are installed in a PC) and which B-channel on the card is to be used.
The phone numbers contain the extension numbers of the two ISDN S0 ports the Cisco and the PC are connected to, in this case 241 and 581.
The b1protocol keyword is mandatory and is used to configure the Layer 1 protocol on the B-channel, for PPP it must be set to hdlc.
The other keywords are relatively unimportant for the example and are explained in detail in section 6.1.3 of this handbook.