What do these parameters mean for HTML form based authentication scheme ACS=0; REL=0

Products

• CA Single Sign On Agents (SiteMinder)
• SITEMINDER
• CA Single Sign On Secure Proxy Server (SiteMinder)

Issue/Introduction

What do these parameters mean for HTML form based authentication scheme ACS=0; REL=0.

For example:

https://agent.host.domain/siteminderagent/forms/login.fcc;ACS=0;REL=0

Environment

Release : 12.8

Component : SITEMINDER -WEB AGENT FOR APACHE

Resolution

ACS=0;
 
This parameter corresponds to check box "support Non-browser Client" in admin ui. When checked, ACS=1;
 
For details of Enabling Non-browser Client Support, please visit:
 
https://techdocs.broadcom.com/us/en/symantec-security-software/identity-security/siteminder/12-8/configuring/policy-server-configuration/authentication-schemes/configure-html-forms-authentication.html
 
REL=0;
 
This parameter corresponds to check box "Use Relative Target". When checked, REL=1; then url will be relative url without host name.
 
e.g. /siteminderagent/forms/login.fcc;ACS=0;REL=1