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--- pfsense:dns:forward_a_specific_vlan [2021/01/06 10:14] – peter
+++ pfsense:dns:forward_a_specific_vlan [2022/10/08 08:48] (current) – [PFSense - DNS - Forward a specific VLAN] peter
@@ Line 26: / Line 26: @@
 <WRAP info>
 **NOTE:**  The **forward** view forwards requests to a couple of DNS servers on the Internet.
+  * **forward-addr**:  the list of nameservers to forward the queries to.
+  * Unbound implements RFC2988 https://tools.ietf.org/html/rfc2988 for SRTT (smoothed round-trip time).
+    * Unbound keeps track of the round-trip time per address and uses this information in the server selection.
+    * All addresses with an RTT of not more than 400msec above the lowest RTT are used for the selection.
+    * From this list of suitable addresses one is randomly picked.
 </WRAP>
 ----
+===== References =====
+https://tools.ietf.org/html/rfc2988