1. es140.exe Driver
2. EXTEND.TXT File Contents

EXTEND.TXT Driver File Contents (es140.exe)

;EXTEND.TXT

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--              EXTENDED FUNCTION INSTALLATION             --
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The second (and optional) part of the Building Block installation 
adds support for host name resolution. Also included are NetBIOS 
programming interface configuration variables and IP packet-
handling variables which may apply only if you are adding more 
Wollongong products.  

Gateway Address
---------------
IP address of gateway on local subnet.  This address is necessary 
to access external subnets.

Username
--------
The username is used by TCP/IP applications (such as TELNET and 
FTP) for host authorization.  For example, if you use the remote 
commands (such as RCP,RSH, and RLOGIN), the username on the PC 
(client) must match the username on the remote host (server).  
Enter up to 30 characters for a username.

Hostname
--------
The official Hostname is used by the Wollongong PathWay Access 
(DOS) Remote commands, as well as  Wollongong PathWay Client Plus, 
PathWay Server, and PathWay Client NFS for host authorization.  
The official hostname should appear in the host.equiv and host 
files on remote machines to which you want to log in.  Enter up to 
50 characters for an official hostname.  To use the official 
hostname for host authorization, all hosts on the network should 
have the same domain name, such as twg.com.  

If you have a domain name server on your network, the official 
hostname must include the name of the host, plus a fully specified 
domain name.  For example, a host bertha at Wollongong would have 
an official hostname of bertha.twg.com.  The top-level domain for 
this commercial organization is com, while the company-wide 
subdomain is twg.

Domain Name Server(s)
---------------------
    IP Address        Hostname
See Hostname above.

IP Broadcast Bits
-----------------
Building Block permits you to customize your network to 
accommodate the broadcast address used by the hosts on your 
network.  There are two possible broadcast addresses:

    0
    1

Older implementations of TCP/IP based on the Berkeley Software 
Distribution (BSD) 4.2 release use 0 as part of the broadcast 
address.  The later release of BSD 4.3 uses 1.  This has become 
the standard for newer machines and networks.  Building Block 
permits you to change 1 to 0.

Size of packet buffers
----------------------
The size in memory that is used for holding incoming and outgoing 
packets.  The default is 1526 bytes for Ethernet.  You can choose 
578, 1090, or 1526 for Ethernet environments.  You may also enter 
your own value.  The size should be large enough to accept the 
largest packet your PC can be expected to receive.  Reducing the 
size of your packet buffers saves memory.  

Number of packet buffers
------------------------
The number of packets that can be sent or received at any point in 
time.  The number of buffers must be sufficient to keep packets 
from being lost during large transmissions.  For the Ethernet 
default buffer size of 1526 bytes, the default is six packet 
buffers; the maximum number allowed is 20.  

Network to Physical Address Translation Cache
---------------------------------------------
    IP Address        Physical Address

Allows you to assign Internet addresses to Ethernet hosts that do 
not support Address Resolution Protocol (ARP).  ARP translates the 
Internet address of a host to its physical address.  The physical 
address is the address of the network interface card in the PC.  
Interface cards respond only to their own physical address. So, 
when you type an Internet address to connect with a host on the 
network, the Internet address is translated to the physical 
address of the card so the card can respond.  ARP performs this 
translation.

However, if a host on the network does not support ARP, you need 
to type the physical and Internet address of the host in the 
network to physical address translation cache window.  You can 
find a physical address printed on a label on each card.

If you use this feature, the open connection process will be 
faster, the network overhead will be reduced, and network traffic 
will be less congested.

Building Block supports up to three network-to-Internet address 
translations.

TCP window in bytes
-------------------
Sets the maximum number of packets that can be sent from or 
received by the PC before it must either receive or send a 
response.  This value depends on the packet size; for example, for 
a packet size of 1526 bytes (Ethernet), the default TCP window 
size is 1460.  You can also choose 2920, 4380, or 5840.  

Number of UDP sessions
----------------------
Sets the number of UDP sessions allowed for the PC.  Each UDP 
session requires one UDP connection.

Number of NetBIOS sessions
--------------------------
Sets the number of NetBIOS sessions (and TCP connections) allowed 
for the PC.  Each NetBIOS session requires one TCP connection.  
There should always be one session available at any time.  
Therefore, the value for this parameter should be the number of 
remote hosts on your network, plus one.  The default for this 
value is 4 and can be set as high as 32.

Turn on Unload NetBIOS Feature?
-------------------------------
    n or y
y(es) means that you can remove the NetBIOS executable files 
(NETBIOS.EXE, NB_CLI.EXE, and NBNS.EXE) by deallocating the kernel 
(by typing pwtcprm.)

n(o) means that you cannot remove these executable files by 
removing the kernel.

NetBIOS keepalive time (in seconds)
-----------------------------------
The time interval at which NetBIOS keep-alive packets are sent.  A 
keep-alive packet tells a host to keep the session active, even if 
there has been no activity on the network for several hours.  
Default=0 (off).  Active range=1 through 999.

SNMP management station
-----------------------
    IP address
    Hostname
IP address and hostname of PC on subnet running management 
software.

TCP maximum retransmission timeout
----------------------------------
The maximum timeout interval when retransmitting TCP packets.  One 
tick is about 1/18 second.  The maximum in this case, 300 ticks, 
is 16 2/3 seconds.  

TCP minimum retransmission timeout
----------------------------------
The minimum timeout interval when retransmitting TCP packets.  One 
tick is about 1/18 second.  The minimum in this case, 2 ticks, is 
1/9 second.

**END**