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DrillDown Icon Table of Contents Back
 . . . . . . . . . . . . .
DrillDown Icon Version 9.x
DrillDown Icon How To
DrillDown Icon Troubleshooting
DrillDown Icon FAQ
DrillDown Icon Answers to your Needs
DrillDown Icon Anti Spam
DrillDown Icon Anti Virus
DrillDown Icon Authentication
DrillDown Icon Do I need to add all the controllers for a single Active Directory Domain?
DrillDown Icon In Clientless SSO Configuration, why do I receive DCOM error with Event Id 10009 after running CTAS service?
DrillDown Icon How do I enable User/MAC binding?
DrillDown Icon Why LAN users are not leased IP address from the DHCP server when Cyberoam is deployed as Bridge with DHCP server configured on
DrillDown Icon Download SSO Windows Vista Single Sign On client
DrillDown Icon Does Cyberoam Corporate client support Windows Vista?
DrillDown Icon Can I migrate Windows 2003 Active Directory Server users from Cyberoam after re-installation of Windows 2003 Active Directory Se
DrillDown Icon How do I bypass authentication for an IP address when Cyberoam is configured as Proxy server?
DrillDown Icon Can I define both Windows NT PDC and Active Directory Domain Controller as Authentication servers?
DrillDown Icon Why users are not able to access the Internet when Cyberoam is configured with “Monitor only” policy? Users are receiving messag
DrillDown Icon Why HTTP Client login page is not displayed to the users’ while trying to access Internet when default ‘deny all’ policy is appl
DrillDown Icon Why at the time of log on “Login request unsuccessful, Contact Administrator” error message is displayed to the user when I am u
DrillDown Icon What should I do to provide Internet access to the UNIX machine users using HTTP browser like Mozilla and get the reports?
DrillDown Icon Why Clientless user is not displayed in Manage Clientless user list as well as Live Users list?
DrillDown Icon How do I delete Clientless user?
DrillDown Icon When do I create Clientless user?
DrillDown Icon Why I am receiving "You are not allowed to login from this machine" error when I try to activiate Clientless user?
DrillDown Icon Why Cyberoam displays “Access Denied” message even after authentication when I use Class A IP addresses for LAN?
DrillDown Icon I have implemented SSO with ADS without any error during configuration. But while login using SSO Client it gives me error
DrillDown Icon Categorization
DrillDown Icon Deployment
DrillDown Icon DNS
DrillDown Icon Firewall
DrillDown Icon Hardware
DrillDown Icon Logs & Reports
DrillDown Icon Multiple Gateway - Load Balancing and Failover
DrillDown Icon Miscellaneous
DrillDown Icon Registration & Licensing
DrillDown Icon Report
DrillDown Icon Support
DrillDown Icon System
DrillDown Icon VLAN
DrillDown Icon VPN
DrillDown Icon Tech Notes
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Why Cyberoam displays “Access Denied” message even after authentication when I use Class A IP addresses for LAN?

This message is displayed when Class A IP addresses are configured for LAN as Cyberoam doesnot support Class A IP addresses. Follow the below given steps to resolve the problem:

  1. Logon to Web Admin Console
  2. Go to Firewall > Local ACL
  3. From Auth. Network: Delete the Class A IP addresses
  4. Add Class B IP addresses e.g.
  5. Logon to CLI using SSH or Telnet and restart management services from Main menu
From version 9.5.4 onwards, it is not required to restart management services after re-configuring IP address.
Article ID: 172