Serial Port Profiles

Advanced Tab Field Descriptions

Configure the following parameters:

MTU

The Maximum Transmission Unit (MTU) parameter restricts the size of

 

individual SLIP packets being sent by the IOLAN. Enter a value between 256

 

and 1006 bytes; for example, 512. The default value is 256. If your user is

 

authenticated by the IOLAN, this MTU value will be overridden when you

 

have set a Framed MTU value for the user. If your user is authenticated by

 

RADIUS and the RADIUS parameter Framed-MTUis set in the RADIUS file,

 

the IOLAN will use the value in the RADIUS file in preference to the value

 

configured here.

 

Default: 256

Routing

Determines the routing mode (RIP, Routing Information Protocol) used on the

 

SLIP interface as one of the following options:

 

z None—Disables RIP over the SLIP interface.

 

z Send—Sends RIP over the SLIP interface.

 

z Listen—Listens for RIP over the SLIP interface.

 

z Send and Listen—Sends RIP and listens for RIP over the SLIP interface.

 

This is the same function as the Framed-Routingattribute for RADIUS

 

authenticated users.

 

Default: None

VJ Compression

When enabled, Van Jacobson compression is used on this link. When enabled,

 

C-SLIP, or compressed SLIP, is used. When disabled, plain SLIP is used.

 

C-SLIP greatly improves the performance of interactive traffic, such as Telnet

 

or Rlogin.

 

If your user is authenticated by the IOLAN, this VJ compression value will be

 

overridden if you have set a Framed Compression value for a user. If your

 

user is authenticated by RADIUS and the RADIUS parameter

 

Framed-Compressionis set in the RADIUS file, the IOLAN will use the

 

value in the RADIUS file in preference to the value configured here.

 

Default: Enabled

Direct Connect

If the device is remote and will be dialing in via modem or ISDN TA, enable

 

this parameter.

 

Default: Disabled

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IOLAN SDS/SCS/STS User’s Guide, Version 3.6

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Perle Systems manual Iolan SDS/SCS/STS User’s Guide, Version