Cisco Cisco Expressway
Task 13: Configuring Registration Restriction Policy (Optional)
You can limit the aliases that endpoints can register, using either an Allow list or a Deny list. This is an example of
how to configure Allow list registration restrictions:
how to configure Allow list registration restrictions:
1.
Go to Configuration > Registration > Allow List.
2.
Click New.
3.
Create an allow pattern by configuring the following fields. This example limits registrations to endpoints
which register with an identity that contains “@example.com”.
which register with an identity that contains “@example.com”.
Description
Enter Only allow registrations containing “@example.com”
Pattern type
Regex
Pattern string
Enter .*@example\.com
4.
Click Add Allow List pattern.
To activate the registration restriction:
1.
Go to Configuration > Registration > Configuration.
2.
Configure the Restriction policy as follows:
Restriction policy
Allow List
3.
Click Save.
Task 14: Configuring Device Authentication Policy (Optional)
Authentication policy is applied by the Expressway at the zone and subzone levels. It controls how the Expressway
challenges incoming messages (for provisioning, registration, phone books, and calls) from that zone or subzone and
whether those messages are rejected, treated as authenticated, or treated as unauthenticated within the
Expressway.
challenges incoming messages (for provisioning, registration, phone books, and calls) from that zone or subzone and
whether those messages are rejected, treated as authenticated, or treated as unauthenticated within the
Expressway.
Each zone and subzone can set its Authentication policy to Check credentials, Do not check credentials, or Treat as
authenticated.
authenticated.
28
Cisco Expressway Registrar Deployment Guide
Optional Configuration Tasks