Thanks for all private and public answers. Besides the two I mentioned on the original posting (NavisRadius and Interlink), two other RADIUS servers seems to be quite popular and trusted by various NANOG readers: - Radiator (www.open.com.au/radiator) - Steel-Belted Radius (www.funk.com) The following products have received one or two mentions: - Widespan (http://www.bridgewatersys.com/) - FreeRadius (http://www.freeradius.org) - GNU RADIUS (http://www.gnu.org/software/radius/) - Navipath (no longer in business) - Cisco Access Registrar (http://www.cisco.com/go/ar) Rubens Kuhl Jr. -----Original Message----- From: owner-nanog@merit.edu [mailto:owner-nanog@merit.edu] On Behalf Of Rubens Kuhl Jr. Sent: Monday, December 10, 2001 7:53 PM To: Nanog@merit.edu Subject: Robust/feature-rich RADIUS server Any suggestions on RADIUS servers that are robust (i.e, scale to hundreds/thousand of NAS, high number of auths/s), feature-rich (proxy, L2TP, broadband and aggregated dial typical parameters), that can be taylored to business rules and overall environment ? NavisRadius and Interlink(formerly Merit AAA) are natural competitors, I was looking for other forces on the xSP market. Rubens Kuhl Jr.