Setting up ISDN link to an Internet service provider

This document is for OfficeConnect Remote 510, 520 & 530 or AccessBuilder 500 and requires software v5.03f or greater to go into an Internet service provider (ISP) via a PPP connection and will support Multilink PPP. Multilink PPP (MLPPP) will allow 2 channels (128k) access to an Internet service provider or other vendor's router that supports MLPPP also. You may need to sign up for this service ahead of time, so check with your provider if this is necessary. You can bring up both channels all the time during a MLPPP connection or set a percentage threshold to bring up the second channels based on demand.

Each workstation will need to have a valid IP address with this unit's IP address as their default gateway. Most ISPs will assign a group of IP addresses and the correct subnet mask for that group. This unit only supports PPP in routing mode, not in bridging. Also, this unit will not support dynamically assigned address or DHCP servers from the ISP. See the attached diagram for examples.

There are two ways to configure the OfficeConnect Remote units, one is through the Transcend Quick Configuration Manager (TQCM) windows based software or from a command prompt. This document is based on the command prompt setup, you can either click on the VT100 icon in TQCM or use any terminal mode (set to 9600, N, 8, 1) to access the unit via the command prompt configuration software which is built in to the units. The default password is "PASSWORD".

You may need to upgrade the unit if you are not on v5.03f already: Download the latest software available on the 3Com.com Web site under: Support, ISDN, Software library, Bridge and Router files:

OCR0503f.EXE this is for OfficeConnect Remotes 510, 520 or 530
AB50503f.EXE this is for AccessBuilder 500

NOTE: If you are upgrading from 5.02 - you need to set the following items in the units configuration software before beginning the update procedure (this is not necessary if you are already on 5.03):

CO PO,

TYPE

MMi

Edit

ASYNC

SAVE

Copy file to a temp directory, EXIT WINDOWS, explode the file by typing the filename (i.e. "OCR0503f" ). Then type "UPDATE" (return) and follow the prompt to upgrade the software through the console port. This will take about 35 minutes, and should report a successfully upgrade message on the screen when complete.

The following is an example; you will need to substitute your correct network and ISDN information:

QC = Quick Configuration Name = to set up Name of unit, IP address, IP mask and ISDN line configuration. After you fill this out, the values will reside in the various system configuration options (i.e., ISDN line configuration will show in CO PO ISDN).
```
V05.02b	ACMECO			UNIT PARAMETERS		5ESS ISDN OK

-------------------------------------------------------------------------------

	Unit Name		: ACMECO

	Manager LAN IP address	: 206.100.100.100

	Manager LAN IP mask	: 255.255.255.240

	Network Type		: USA (National ISDN-1)

			For North American use only

	SPID 1			: 0198212230

	Directory Number 1	: 9821223

	SPID 2			: 0198212240

	Directory Number 2	: 9821224
```
Unit Name = your login or username that the ISP has assigned for your account
Unit LAN IP address = the IP address of this unit's LAN port
Unit LAN IP mask = valid IP mask -see Internet setup below for more detailed explanation
Network Type = telephone switch type equipment of your ISDN line
SPIDs = These are provided by your telephone company for your ISDN line (for North America only)
Directory Numbers = 7 digits only; do not include area code (for North America only)

^E to submit, SAVE & reboot to initialize the ISDN line- after reboot, upper right hand corner of screen should show ISDN OK

CHECK that you can dial yourself, do a LOOPBACK test from CO PO from command prompt: Call the second phone number of this unit - Example: CALL 9821224 (return) If it works, the ISDN1 & ISDN2 ports NAME field will be "LOOPBACK!" and STAT will be "UP". If this does not work, cancel the call (CANC 9821224 ) and try a 1 and your own area code or 9 (if centrex) in front of the phone number. This will verify that both B channels are working and able to dial out and receive local calls.
QC = Quick Configuration INternet = Connect to the Internet (ISP) or another PPP router
After you fill this out, the values will reside in their various system configuration options and it does not keep them in the QC Internet setup screen. So to change settings or correct data you can go to the specific configuration locations (i.e., CO IS NU for ISDN phone #) and change them. If you go back into the QC INT again it will build a second set of databases with the same data as if you wanted multiple sites and this could cause some conflicts, so it is best to start the setup over by typing CO STD.
```
V05.02b  ACMECO    CONNECT TO ANOTHER PPP IP ROUTER    5ESS ISDN OK

-------------------------------------------------------------------------------

         Name of your Internet Provider or remote site   : Netservice

         ISDN number of the remote unit you want to call : 14085551212

         Call Type                                       : 64K Unrestricted

         IP Address of this unit's LAN port              : 206.100.100.100

         IP Mask of this unit's LAN port                 : 255.255.255.240

         IP Address of this end of the ISDN link         : UNNUMBERED

         IP Address of the remote end of the ISDN link   : UNNUMBERED

         IP Mask of the ISDN link                        : UNNUMBERED

         IP Address of the remote hosts network          : INTERNET

         IP Mask of the remote hosts network             : INTERNET

         Manufacturer of remote router                   : DEFAULT
	 ID to log into remote site                      : ACMECO
         ID for others to log into you                   : unused

         PAP Password to log into remote site            : demopw

         PAP Password for others to log into you         : UNUSED

         CHAP Password to log into remote site           : UNUSED

         CHAP Password for others to log into you	 : UNUSED
```
Name = ISP's name or remote site = Netservice (this is an example)
ISDN # = ISP's ISDN phone # to be dial to connect to their router (add 9 if necessary)
Call type 64k or 56k = this depends on your area ISDN line capabilities
IP address of this unit's LAN port = this unit's IP address from the QC NAme setup screen.
Your ISP usually allocates this and it must be a valid IP address.
IP mask = the mask for this IP address is taken from the QC Name setup screen. Your ISP provides the IP mask based on the amount of addresses allocated, the above example uses a 28-bit mask which will allow up to 13 IP addresses available for workstations, one for the unit, and the first and last address of the subnet are not available.

Take the default settings for most of the options per the above example.

Manufacturer of remote router = scroll to the correct Manufacturer of remote router if possible
ID to log into remote site = repeat the units name - which should be your login name
ID for others to log into you = unused (only used when two verification is necessary)
PAP password to log into remote site = demopw (this is whatever has been assigned to you by the ISP)
PAP password for others to log into you = unused (only used when two verification is necessary)
CHAP password to log into remote site = unused (most ISPs do not use this)
CHAP password for others to log into you = unused (only used when two verification is necessary ^E, SAVE

QC = ENABLE for Multilink PPP:

a: Go to CO IS NU, highlight the entry for this connection, (in this example it would be "NETSERVICE"), type EDIT (return). Then enable Multilink PPP and verify PPP Authentication under the PPP parameter section. The following is an example:

V05.03f		ACMECO		EDIT ISDN NUMBER	5ESS ISDN OK
-------------------------------------------------------------------------------
Name		: Netservice
ISDN Number1  	: 14085551212	Call Type1 		: 64K Unrestricted
     Number2	:	Type2 				: 64K Unrestricted
     Number3	:	Type3 				: 64K Unrestricted
     Number4	:	Type4 				: 64K Unrestricted
Max Circuits	:2		PPP PARAMETERS 		:
IP Address	:0.0.0.0	PPP			: ENABLED
IP Mask		:0.0.0.0	Remote IP Address	: 0.0.0.0
IP Hop Count    :1		Remote Unit Type	: DEFAULT
IPX Network     :FFFFFFFE	PPP Phys		: SYNC
IPX Frame Type  :802.2		PPP Authentication	: PAP
				PPP MP			: ENABLED
				Learnt Endpoint Disc	: NULL

b: Go to CO PO, highlight ISDN1, at command prompt type EDIT (return) , type PORT (return):

V050.3f		ACMECO			EDIT ISDN Port		5ESS ISDN OK
-------------------------------------------------------------------------------
Port  Number	:ISDN1			Demand			: ENABLED
Port Name	:AUTO FAST/PPP 1	Demand Threshold	: >0
Compression	:LZ-STANDARD		Demand Period		: 0
Scramble	:DISABLED		Demand Priority		: 0
Line Speed	:64000			Idle Threshold		: >0
Dial Timeout	:10			Idle Period		: 0

Set DEMAND=ENABLED on both ports and set the thresholds, period and priorities per your specifications. The above example is for a 2 channel access during the entire connection.

Repeat for ISDN2 - both ports should be identical

Command Prompt: ^E to submit, type SAVE (return)

c: Now bring up a connection with a web browser or with a ping command for a valid IP address not on your network. The first channel should come up within few seconds (up to a minute) the second channel should come up, unless there is are threshold settings.