Hi Why not working next config? Thanks. cache cache_ldap { driver = "rlm_cache_rbtree" key = "%{User-Name}" ttl = 300 add_stats = no update { &reply:Cisco-AVPair := &reply:Cisco-AVPair &control:Tmp-String-0 := &control:Tmp-String-0 } } post-auth { cache_ldap update reply { Tmp-String-1 = "%{cache_ldap:control:Tmp-String-0}" } detail_reply } (0) # Executing section post-auth from file /usr/local/radius/etc/raddb/radiusd.conf (0) post-auth { (0) cache_ldap: EXPAND %{User-Name} (0) cache_ldap: --> E350 (0) cache_ldap: No cache entry found for "E350" (0) cache_ldap: Creating new cache entry (0) cache_ldap: &reply:Cisco-AVPair := &reply:Cisco-AVPair -> 'h323-ivr-in=ani:4822360460' (0) cache_ldap: &control:Tmp-String-0 := &control:Tmp-String-0 -> 'h323-ivr-in=ani:4822360460' (0) cache_ldap: Committed entry, TTL 300 seconds (0) [cache_ldap] = updated (0) update reply { (0) No cache entry found for "control:Tmp-String-0" (0) EXPAND %{cache_ldap:control:Tmp-String-0} (0) --> (0) Tmp-String-1 = (0) } # update reply = noop