How do I configure X.31 in the B-channel (Case A/Case B)?
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User’s Guide: Version 1.2
How do I configure X.31 in the B-channel (Case A/Case B)?
The V!CAS supports X.31 in the B-channel according to Case A and B.
Case A and B are alternative procedures that can be used to access the
public X.25 network from an S
0
interface. In both scenarios the V!CAS ac-
cesses X.25 hosts through the Packet Handler Interface (PHI) provided by
the ISDN carrier.
When using the X.31 in the B-channel on the V!CAS, a WAN Partner
interface can be configured for this PHI that can be used as a virtual router
for all X.25 hosts. Individual X.25 Partner interfaces are not required.
Before you begin
You will need the following information.
• The V!CAS’ ISDN telephone number.
• (Case A only) The telephone number of your local PHI. Contact
your local carrier for this information.
Configure it
Configure WAN Partner
First, configure the PHI as a new WAN partner.
Partrner Name
phi
Enabled protocols
<X> X.25
Encapsulation
X31-B-channel
Under
set your PHI’s ISDN number if your carrier
supports Case A. For Case B you don’t need to configure the number.
ISDN Number
<PHI’s telephone number>
Direction
both
X.25 Host
Case A
Datex-P Host
X.31 in D
X.21
ISDN
or
Case B
X.31 in B-Channel
Packet
Handler
Interface
✍
!
(p. 41)
ADD
WAN P
ARTNER
ISDN N
UMBERS
