Instruction manual

Permanently disabling remote access
Issue 9 May 2003
12-3
17. For DEFINITY G1 and System 75, use change ars fnpa a00 group 8 (a
equals
0 through 5), change ars hnpa n00 group 8 (n equals 2 through
9), and change rnx n00 group 8 (n equals 2 through 9) to enter the Route
Pattern where you want to allow calls.
The dialed string entries are already specified, so enter the Route Pattern
number only. Here are some considerations:
— The HNPA table has the default value for the route pattern set to
1,
so you may not want to administer any trunk group to that route
pattern. Use
change route-pattern 1 to delete any trunk groups
already there.
— Similarly, the RNX table has the default value for the Route Pattern
set to
254. Use change route-pattern 254 to delete any trunk
groups administered there.
18. Leave the Route Pattern field blank for all dialed strings that you want
to disallow the calls, such as international and operator calls.
Any ARS/AAR calls starting with that dialed string will be blocked.
19. For all the route patterns assigned to ARS/AAR Partition 8, use
change
route-pattern
to administer an appropriate FRL (1 through 7) in the FRL
field.
Since the FRL on the COR reserved for remote access is 0, the remote
access caller will always be prompted for an authorization code for outside
calls.
20. Assign authorization codes for your remote access users that provide the
lowest possible FRL to match each user’s calling requirements.
See Chapter 3, ‘‘IP security’’
for additional security measures.
Permanently disabling remote access
For Communication Manager, MultiVantage™ Software, DEFINITY ECS,
DEFINITY G3, System 85 R2V4n 3.0 and later, and the “n” versions of G1 and
System 75V3, as an additional step to ensure system security, the Remote
Access feature can be permanently removed. Permanent removal protects
against unauthorized remote access usage even if criminals break into the
maintenance port. See your account representative for information on the “n”
upgrade.
To permanently disable the Remote Access feature in System 85R2V4n 3.0 and
later, or G2.2 3.0 and later:
■ Use PROC275 WORD4 FIELD2, and change the value to 1.