Hello Team, I am glad with few of this group support I was able to deploy FREERadius client to support over TLS.Now our aim is to support IPV6 Query I am trying to upgrade my FreeRADIUS client library to support IPv6 address(vs 1.7) and I almost did it and while testing I came across traces: Jul 26 10:59:14 rc_get_ipaddr: couldn't resolve hostname: 2009:4600:5840:2004:3530::8 Jul 26 10:59:14 rc_send_server: unable to find server: 2009:4600:5840:2004:3530::8 Jul 26 10:59:14 Unexpected return value Call flow across files : sendserver.c -> config.c -> ip_util.c Call flow across functions : rc_findserver() -> rc_get_ipaddr() -> rc_good_ipaddr() This seems to return negative value(rc_good_ipaddr() ) and followed by rc_gethostbyname(host) results the error saying rc_send_server: unable to find server: 2009:4600:5840:2004:3530::8 Am I missing something ? Is rc_good_ipaddr() not expect to validate ipv6 address also ? Kindly share your opinion . Thanks & Regards, Javed Akhtar Technical Lead <mailto:jaakhtar@cisco.com> jaakhtar@cisco.com Tel: Cisco Systems, Inc. India cisco.com Think before you print. This email may contain confidential and privileged material for the sole use of the intended recipient. Any review, use, distribution or disclosure by others is strictly prohibited. If you are not the intended recipient (or authorized to receive for the recipient), please contact the sender by reply email and delete all copies of this message. Please <http://www.cisco.com/web/about/doing_business/legal/cri/index.html> click here for Company Registration Information.