I've just setup my first six OES11 servers. SLP configured for two DA's. DHCP handing out option 78 and 79. Clients receive options correctly but SLPINFO /ALL show the DA's in a NORSP state.

Problem: SLP Directory agents receive requests but never respond to the clients. Confirmed using TCPDUMP.

Solution: Turn OFF IPV6 - reboot server - SLP DA's work 100%

Hope that this information helps somebody.

Kind regards,