Tahoe 684, User Manual

10

4.3.

Commands

4.3.1.

?,  help

Entering “?” or “help” shows a list of available commands.

4.3.2.

arp

The “arp” command is used to configure the ARP table. The “arp” 

alone shows the list of connections between IP and hardware (MAC) 
addresses:

Tahoe> arp
IP address   

Hardware address

10.0.0.2      00:50:04:0D:70:31    dynamic

ARP table entries may be deleted using “arp del”:

Tahoe> arp del 10.0.0.2

(the IP address to be deleted should be typed instead of 

“10.0.0.2” ).

A static ARP entry may be added using “arp add”:

Tahoe> arp add 10.0.0.3 00:50:13:E9:5C:01

The dynamic hardware address resolution may be disabled using 

the “ifconfig” command. If it is disabled, only those stations may connect 
to the modem, whose IP and MAC addresses are entered into the ARP 
table using the “arp add” command. This way an unauthorized network 
access may be prohibited.

4.3.3.

bridge

The “bridge” command enables or disables the bridge mode, in 

which two interconnected LANs create one whole in the hardware layer. 
The stations in both LANs behave like if they were connected to one 

®

Ethernet switch, e.g. PCs working under Microsoft  Windows™ 
operating system will see each other in the network neighborhood. 
Three settings are available:

¡

off

 - regular TCP/IP routing

¡

on

 -   bridge enabled, but the modem is still available under its IP 

address and thus may be managed remotely

11

¡

transparent

 - completely transparent bridge

, inaccessible under 

its IP address - this mode may be disabled only through the serial 
console or the LCD and keyboard.

Entering

 “bridge list”

 displays a list of MAC addresses with the 

name of the interface on which certain address was heard.

Note: 

To make bridging work properly interfaces used in the process 

have to be indicated. To enable bridging on a certain interface 
enter „ifconfig <interface name> bridge on”.

®

Note:

To enable bridging the HDLC or Cisco  HDLC link protocol 

should also be selected using „dsl raw” or „dsl hdlc” command, 
respectively.

4.3.4.

con

The „con” command erases whole configuration from the 

EEPROM. After rebooting the modem it will return to its factory defaults. 
Until the reboot it will continue to run with its current settings, which can 
be saved again using „write” command.

4.3.5.

config

The „config” command displays current configuration. The 

command output may be entered on another modem to make an exact 
copy of the configuration.

4.3.6.

console

This command is used to enable or disable password the 

protection of the serial console. By default the console is unprotected 
and user has full access to the modem. By entering:

console passwd on

the password requirement is enabled and modem will ask for it in the 
same manner as during the telnet connection. To disable password 
protection type:

console passwd off

4.3.7.

dhcp

The “dhcp” command is used to configure DHCP/BOOTP server 

and relay agent. The server is used to assign IP addresses, network 

4.3

4.3.2

4.3.1

4.3.3

4.3.6

4.3.5

4.3.4

4.3.7