Radius server test connectivity fails : Error: 1812/udp' is not a valid Radius authentication port

Radius server test connectivity fails : Error: 1812/udp' is not a valid Radius authentication port

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Article ID: CTX235254

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Description

  • If you have Radius Load Balancing Virtual Server pointed in the Radius profile then the Test connectivity fails.
  • If you configure the Radius Profile to point it directly to the Radius Server, then it works.
  • Error: 1812/udp' is not a valid Radius authentication port or Radius client is not configured properly in the Radius server.

Resolution

  • Create a Net-profile and use Subnet IP as the source IP.
  • Bind the Net-profile to the Load Balancing VIP or the service.

Problem Cause

We have seen certain cases where a PBR is configured for the management IP (NSIP) pointing to a next hop gateway.

In case the ADC does not have a SNIP in the same subnet as the next hop configured, then the packet might never leave the ADC and hence it would fail.
No SNIP causes the Radius packet from Freebsd to Virtual server to be not sent to the actual server.

Issue/Introduction

1812/udp' is not a valid Radius authentication port or Radius client is not configured properly in the Radius server.

Additional Information

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