Configure X.25 parameters
Digi TransPort User Guide
521
Configure X.25 parameters
The
Configuration > Network > Legacy Protocol > X.25
menu has the following sub-menu
options:
•
General
• LAPB
• NUI Mappings
• NUA / NUI Interface Mappings
• Calls Macros
• IP to X.25 Calls
• PADS n
• X.25 Settings
• IP Settings
• PADs
• X.25 PVCs
General X.25 parameters
This section contains some global X.25 settings.
When answering a X.25 call, use the addresses from CALL packet in the CALL CNF packet
If enabled, when answering a call, the called and calling addresses from the CALL packet are
used in the X25
CALL CNF
(call confirm packet) that the router sends to answer the call. This
setting can be enabled on a per interface type basis, (LAPD, LAPB or XoT).
Reset XOT PVC if the router is the Initiator
If enabled, the router is responsible for resetting the links when an XOT PVC comes up. This
parameter should only be set to
Off
when it is known that the responder will reset the links.
Reset XOT PVC if the router is the Responder
If set to
On
, the router is responsible for resetting the links on XOT PVC links when it is the
responder. The default for this parameter is
Off
.
Include length of header in IP length header
For all X.25 calls that include an IP header length indication, such as IP Length Header is set to
On
a TPAD or PAD, etc, this parameter specifies whether the length indicated includes or
excludes the length of the header itself. By default this setting is
Off
, in which case the length
of the header is NOT included in the value.
For example, suppose there is one byte of data of value 67 to encode. Then,
00 01 67
is the
encoding if this parameter is set to
Off
as the length (
00 01
) is
1
, because the length does not
include the length of the header.
When set to
On,
the length of the IP header is included in the value, such as
00 03 67
is the
encoding as the header bytes are included.
