Good Afternoon, The RadSec listen {} block is quite substantial - is there a way to keep the same tls configuration for both IPv4 and IPv6 listeners without maintaining two identical copies of the TLS block? Alternatively, does FreeRADIUS3 support v4 mapped addresses (i.e. ::ffff:x:x:x:x)? I did a quick test just now but didn't see any thing appear in the debug log. Adam Bishop Systems Development Specialist gpg: 0x6609D460 t: +44 (0)1235 822 245 xmpp: adamb@jabber.dev.ja.net Janet, the UK's research and education network. Janet(UK) is a trading name of Jisc Collections and Janet Limited, a not-for-profit company which is registered in England under No. 2881024 and whose Registered Office is at Lumen House, Library Avenue, Harwell Oxford, Didcot, Oxfordshire. OX11 0SG. VAT No. 614944238