Installation
Guide
About Access EtherLinX/4
Access EtherLinX/4
Access EtherLinX/4
enables service providers to offer differentiated data networking or
VPN services to multi-tenant building and business customers. Residing at the customer
premises or at the service provider POP
Access EtherLinX/4
provides a VLAN-based
,
Layer 2 entry point to the MAN fiber network, trunking, differentiating and separating
customer traffic. Featuring SNMP management, bandwidth control, QoS, traffic priori-
tization and multicast pruning (using IGMP v1, v2), it is an ideal solution for delivering
Ethernet-based services to customers quickly and cost-effectively.
Access EtherLinX/4
also features Telnet, and firmware upgrading through serial configuration or Telnet via a
TFTP server.
Access EtherLinX/4
includes one Uplink port (either 100Base-FX fiber or
10/100 twisted pair), four secure 10/100 twisted pair Ethernet downlink ports
1
(for con-
necting users/LANs) and an internal AC power supply.
Installing Access EtherLinX/4
Access EtherLinX/4
comes ready to install. To install
Access EtherLinX/4,
make sure the
unit is placed on a suitable flat surface. Attach the cables between the
Access
EtherLinX/4
and each device that will be interconnected, then plug the unit into a reli-
able, filtered power source. All features, such as
FiberAlert
and
Auto-Negotiation,
are
software-configurable. Refer to the help file for configuration information.
About FiberAlert
Access EtherLinX/4
includes the advanced troubleshooting feature,
FiberAlert,
which
minimizes the problems associated with the loss of one strand of fiber. If a strand is
unavailable,
Access EtherLinX/4
notes the loss of link. The device will then stop trans-
mitting data and the link signal until a signal or link pulse is received. The result is that
the link LED on BOTH sides of the fiber connection will go out indicating a fault some-
where in the fiber loop. Using
FiberAlert,
a local site administrator is notified of a fault
and can quickly determine where a cable fault is located. Please refer to the Help File
for
FiberAlert
configuration information.
Auto-Negotiation, Duplex Mode and Speed
The twisted pair ports on
Access EtherLinX/4
auto-negotiate for speed and duplex
mode. This device also provides the option of selectively advertising or forcing the speed
and duplex mode. If the device has a fiber Uplink port, it does not auto-negotiate; it
always operates at 100 Mbps Full-Duplex. Configure features via the management soft-
ware. Please refer to the help file for more information.
Auto-Negotiation
N
Access EtherLinX/4
ships from the factory with
Auto-Negotiation
enabled on the twist-
ed pair ports. In this mode, the twisted pair port negotiates for speed and duplex.
1
Downlink ports are isolated from one another (i.e. there is no communication between downlink ports).
1
Forcing the Speed and Duplex Mode
The twisted pair downlink ports on
Access EtherLinX/4
can also be manually set
for 10 Mbps or 100 Mbps operation and for Half- or Full-Duplex (i.e. 10 Mbps Full-
Duplex, 10 Mbps Half-Duplex, 100 Mbps Full-Duplex or 100 Mbps Half-Duplex).
Selective Advertising
Selective Advertising,
when used in combination with Auto-Negotiation, adver-
tises only the configured speed and duplex mode for the twisted pair port.
If a specific speed and/or duplex mode is desired, it is recommended that you use
Selective Advertising, rather than Force Mode, when connecting to devices that ONLY
auto-negotiate
.
AutoCross Feature for Twisted Pair Connection
All twisted pair ports on
Access EtherLinX/4
include
AutoCross,
a feature which
automatically selects between a crossover workstation or pass-through/repeater
hub connection depending on the connected device. Note that a MDI/MDIX but-
ton is not required.
About iView²
iView²
is a cross-platform network management application for IMC Networks
intelligent networking devices. It features a graphic user interface (GUI) and gives
network managers the ability to monitor and control IMC Networks’ products from
virtually any 32-bit Windows platform.
iView²
can also function as a snap-in mod-
ule for many SNMP applications. Refer to the help files for
iView²
and
Access
EtherLinX/4
for information regarding configuring and managing your
Access
EtherLinX/4.
A
BOUT
I
C
ONFIG
iConfig
is an in-band configuration utility created by IMC Networks that lets
users quickly and easily complete the first stages of SNMP configuration for IMC
Networks SNMP-manageable devices. Tasks
iConfig
can perform include:
• setting the IP address, subnet mask and default gateway
• defining the community strings and SNMP traps
In addition to the above functions,
iConfig
offers an authorized IP address sys-
tem and access restriction to MIB groups supported by IMC Networks manageable
devices. These extra layers of security are purely optional and do not affect SNMP
compatibility in any way.
iConfig
can also be used to upload new versions of the system software and new
MIB information. It also offers diagnostic capabilities for faster resolution of tech-
nical support issues.
iConfig
version 1.3 or above MUST be used for PROM
updates.
HubControl32
and previous versions of
iConfig
will not work.
iConfig
works with the following platforms:
• Windows 98™ • Windows NT™ • Windows 2000™ • Windows XP™
i
Config
can be found on the
iView²
CD, or you can download it from the
IMC Networks Web site
(http://www.imcnetworks.com/tech/techsup.asp).
For
information regarding the use of
iConfig,
refer to the
iConfig
help file.
2
SNMP Management
SNMP management and
iConfig
are always through the Uplink port of
Access
EtherLinX/4.
This provides a higher level of security because end-users cannot
access management, alter settings, etc.
Bandwidth Control
Access EtherLinX/4
includes bandwidth control functionality. Please refer to the
help file for software configuration information
Assigning IP Information
In order for
Access EtherLinX/4
to allow for SNMP-management, the unit must
be assigned IP configuration information (e.g., IP address, subnet mask, etc.) using
iConfig
via
iView²;
the
unit’s serial port or DHCP
(Dynamic
Host Control
Protocol).
In addition to assigning an IP address and subnet mask, the former two
methods will also allow you to create community strings, assign access rights, con-
figure traps and more. However,
iConfig
offers more options than serial port con-
figuration (e.g., you can select
which
traps to assign with
iConfig).
After assigning
Access EtherLinX/4
an IP address, you can use
iView²
or another SNMP-compatible
Network Management System (NMS) to remotely configure, monitor and manage
Access EtherLinX/4.
A
BOUT
S
ERIAL
P
ORT
C
ONFIGURATION
Although
Access EtherLinX/4
does not include a DB-9 serial port, you can use
the supplied RJ-45 to DB-9 adapter on Downlink Port 4 to allow for serial port con-
figuration. This adapter uses an IBM-compatible DB-9 serial connector.
To connect
Access EtherLinX/4
to your terminal/computer, use a straight-through
(pin-to-pin) cable. (If your computer/terminal has a COM port using a connection
not compatible with a DB-9 connector, use the pin connection chart [below] for
reference in making a cable.) Make sure the cable length is under 50 ft. (15.24 m).
Plug one end of the cable into the DB-9 connector on
Access EtherLinX/4
and the
other into the appropriate port on your computer/terminal. Set your computer/ter-
minal for VT-100 emulation. The serial port on the computer/terminal should be
set for:
38.4K baud, 8 data bits, 1 stop bit, no parity
and
no flow control.
S
E R I A L
A
D A P T E R
P
I N
C
O N N E C T I O N
RJ-45 Pin #
5
7
8
1-4,
6
DB-9 Pin #
2
3
5
1, 4, 6 - 9
Function
Transmit (OUT)
Receive (IN)
Ground
Reserved
Main Configuration Screen
After running through an initial self test, the screen will display the follow-
ing message: “Press
<Enter> for Device Configuration.”
Press
Enter
to be
taken to the main configuration screen. Here you will find several displays:
3
Saved Values
—
displays changes made during current session.
IP Address (MUST be assigned during initial configuration)
Subnet Mask (MUST be assigned during initial configuration)
Default Gateway
Server IP Addr
New Prom File
Current Values
—
displays values currently in use.
IP Address (IP address of SNMP agent)
Subnet Mask (mask to define IP subnet agent is connected to)
Default Gateway (default router for IP traffic outside subnet)
Server IP Addr
New Prom File
Command List
I
P
T
K
C
U
D
E
=
=
=
=
=
=
=
=
Enter New Saved Parameter Values
Change Password
New Trap Destination
Remove ALL Trap Destinations
New Community String
Delete ALL Community Strings
Enable/disable DHCP
End Session
Space
= Device Specific Configuration (Tasks, CleanDB, Download,
Date, VLAN, Reboot and Memory) options available here (see pages 6-7).
N O T E
You must reboot after making any modifications to the Saved Values or your changes
will not take effect. To reboot, type the word “Reboot” (no quote marks) at the prompt
on the main configuration screen, or turn the chassis power OFF then ON again.
N O T E
Because a Delete key is not available on VT-100 terminal emulators; use the
F2
key.
Assigning TCP/IP Information
To modify the Saved Parameter Values (i.e., assign IP address and
subnet mask), press
I.
You will be instructed to enter the IP address and sub-
net mask for the connected device. Press
Enter
after each. You may also
assign a default gateway, if desired (press
Enter
to skip). When finished, press
Enter,
then type “Reboot” for changes to take effect. The Saved Values and
Current Values should now both display the changes made (e.g., new IP
address and subnet mask).
Creating Community Strings
The purpose of community strings is to add a level of security to a network.
The default community string is named “public” and has read/write access.
IMC Networks recommends deleting Public, then adding necessary custom
communities strings such as one with read-only access (for general use), the
4
other with read/write access (for the administrator). To create a new com-
munity string, go to the main configuration screen and press
C.
Enter the
name of the new community (up to 16 characters, no spaces) and press
Enter.
Then type one of the following to assign the community string’s access rights:
•
R
= read-only access •
W
= read/write access •
Enter
= abort
Press
Enter.
When finished, press
Enter,
then type “Reboot” for changes
to take effect. The Saved Values and Current Values should now both dis-
play the changes made (e.g., new IP address and subnet mask).
Deleting Community Strings
To delete all community strings and start over, press
U.
You will then be
asked, “Are you sure you want to delete all future strings?” Press
Y
to pro-
ceed,
N
to abort. Press
Enter.
This function will delete ALL community strings. If you want to be able
to selectively delete community strings, use
iConfig
to configure your device.
Assigning Trap Destinations
Traps are sent by the manageable device to a management PC when a cer-
tain event takes place. To enter a trap destination, press
T.
You will then be
asked to “Enter a New IP Address.” Type the IP address of the destination
device and press
Enter.
Then type the name of the community string (that
teh destination device has been configured to accept) and press
Enter.
This
function enables ALL of the traps the device is capable of. If you want to be
able to selectively activate and de-activate traps, use
iConfig
to configure your
device. Supported traps are Enterprise specific and include: Link Down, Link
Up, Cold Start, Warm Start and Authentication Failure.
Removing Trap Destinations
To remove all trap destinations, press
K.
You will then be asked if you real-
ly want to remove all trap destinations. Press
Y
to continue. Press
N
to abort.
Press
Enter.
Password Protection
You can password protect the serial configuration process by pressing
P
from the main configuration screen. You will be asked to enter a password.
(NOTE:
Passwords are case sensitive.)
Enter your password (spaces are NOT
allowed) and press
Enter.
You will then be asked for your password when-
ever you log on or off. To remove password protection, select
P
and instead
of entering a password, press
Enter.
Should you forget the password, use
iConfig
to access the back-up copy of the PROM, then reburn the flash PROM
(or contact IMC Networks technical support for assistance).
Ending Your Session
Be sure to press
E
before disconnecting the cable in order to stop the continu-
ous stream of data to the serial port.
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