Advanced tab field descriptions – Perle Systems IOLAN SCS User Manual

Page 180

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Serial Port Profiles

180

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

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-MTU

is 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-Routing

attribute 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-Compression

is 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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