Appendix C IR-IP Interface Module ASM-60 Installation and Operation Manual
C-12 Management Access Menu

Default Gateway

Operation without Default Gateway

The IP interface module is intended to enable the extension of LANs through the
ASM-60 VDSL link. Therefore, its default routing operation is different from the
default routing operation of standard IP routers:
IR-IP forwards packets with destinations not located on the local LAN through
the WAN interface
Packets received from the WAN interface and destined to hosts located on the
local LAN are forwarded to the LAN; other packets are discarded.
The default operation is used when the Default Gateway field is blank.

Operation with Default Gateway

You can instruct IR-IP to send packets with destinations not located on the local
LAN to a specific router, which is called the default gateway. The default gateway
must be connected to the local LAN.
To use this option, enter the IP address of another router attached to the local LAN
in the Default Gateway field.
It is very important to obtain the correct parameters from the system administrator
or ISP. The most common problem when establishing an IP connection is incorrect
configuration of IP parameters and default gateway. Do not try to guess these
parameters.

Read Protocol from DIP Switches

Selecting YES for this parameter forces IR-IP router card to use the WAN protocol
selected by section 2 of its DIP switch: PPP or Frame Relay.
If you want to be able to select the WAN protocol by means of the Protocol field
(parameter 7) of the Quick Setup menu, select NO.

Protocol

Used to select the WAN protocol to be used by the IP router card: PPP, HDLC or
Frame Relay.
This parameter is available only if the Read Protocol from DIP Switches parameter
is set to NO.
C.8 Management Access Menu
The Management Access menu is used to enable the use of passwords to protect
the access to IR-IP management utility, and control the inactivity time-out interval.
When password protection is enabled, a Telnet management session can start only
after the correct password is entered.
Note