User Guide

Advanced
configuration
10 Configuration and Use - Relayed PPPoA
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3EC 36231 ABAA TCZZA Ed. 01
Field Description
HDLC
Framing
(continued)
Value Description
Never
Always
The STPro will make sure that FF03 is
always in front of a PPP frame
encapsulated on an AAL5/ATM
connection. Although not supported by
RFC2364, some equipment may rely
on this format.
Keep
The STPro will not change the PPP
frame arriving via a tunnel.
The STPro will make sure that FF03
will never be found in front of a PPP
frame encapsulated on a AAL5/ATM
connection, independent of the actual
format of the PPP frame in the tunnel.
This setting is default, and follows
RFC2364.
Note: This configuration possibility applies only to the upstream
direction ! In the downstream direction, the STPro will always
make sure that FF03 is in front of the frame prior to put it in a
PPTP tunnel.
In order to cope with these PPP frame differences, the STPro
adapts to the different formats on a 'per connection' base.
Additionally, the STPro offers the following PPP/AAL5 format
configuration options via the CLI if interoperability problems
should arise:
State
User
Indicates that the Relayed PPPoA connection is up
("CONNECTED").
As soon as a PC initiates a PPTP tunnel towards the STPro, its IP
address is indicated in the 'User' field.
You can instruct the STPro to use a specific PPPoA phonebook
entry by adding its phonebook name next to the STPro's IP
address or DNS hostname in the DialUp application on your PC.
The phonebook name string can optionally be followed by a PPTP
profile name, configured via the CLI. This PPTP profile allows you
to specify:
 Encapsulation method (default = VCMUX)
 HDLC framing (default = never)
 QoS (default = default).