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How to configure RM Unify MFA with trusted IP addresses
Published Date : 30 Jun 2022   Last Updated : 20 Jul 2022   Content Ref: TEC8637174  


When setting up RM Unify multi-factor authentication (MFA), you are able to configure a set of trusted IPv4 address range(s) for your establishment so that users will not be prompted for MFA when using a device assigned a trusted IP address. 

This will allow you to exclude your school's IP range if you would only like users to be prompted for MFA when they are outside of this range. It can be helpful for schools that operate a 'no mobile phones' policy, as this will remove the requirement to complete the MFA prompt on a user's personal device while at school. Since the majority of malicious attacks on user accounts are more likely to occur from outside of the school location, this feature will allow schools to make a compromise between security and user experience.


RM Connectivity customers
If you are an RM Connectivity customer, please log a support request and we will enable this for you.


  1. Sign in to RM Unify as a super admin user.
  2. Navigate to the RM Unify Management Console.
  3. On the left-hand side, under 'Sign In & Security', select Trusted IP Addresses.
  4. Type the CIDR* of the trusted IPv4 range. For example, a CIDR of will set the IPs - with subnet mask as trusted IPs.
  5. Click Add.

*Classless Inter-Domain Routing is a method for allocating IP addresses and for IP routing.

Possible Issues

A warning icon is displayed beside a CIDR value if the number of IP addresses in the range is more than 20.

An additional address or range is rejected with the message "An error occurred while saving the settings" if:
  • it is not a valid IPv4 CIDR format.
  • it ends with '/31'.
  • it overlaps any of these internal ranges:
    • Class A: through
    • Class B: through
    • Class C: through
  • it overlaps any of these multicast addresses:
    • to
  • it overlaps any of these other ranges:
    • Current (local) network RFC 1122
    • Local host RFC 1122
    • Link-local RFC 3927
    • Limited broadcast destination address RFC 8190 and RFC 919

More Information

What is CIDR notation?
CIDR notation is a compact representation of an IP address and its associated network mask. For more information, please refer to the links below:

Can I set a trusted range for IPv6 addresses?
Currently, only IPv4 address ranges are supported. Extending to IPv6 addresses may be considered for a future release.

Other Useful Articles

RM Unify Multi Factor Authentication (TEC5941143)

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Document Keywords: Unify,Trusted,IP,ipv4,Address,range,bypass,whitelist,mfa,multi,factor,auth, by pass, TEC8637174

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