Creation of QoS filters

At the start of the QoS configuration, filters are defined that will identify traffic that needs to be prioritised. QoS filters must be created for the prioritisation of VPN IPSec connections. For this, go to the following menu:

Go to Routing -> QoS -> QoS Filter -> New.

Routing -> QoS -> QoS Filter ->New

Proceed as follows in order to configure QoS filters:

For Description enter the description of the filter, e.g. IKE .
Select the Protocol udp .
For Destination Port/Range select Specify port and enter the destination port number, e.g. 500 .
Under Source Port/Range select Specify port and enter the source port number, e.g. 500 .
Leave you DSCP/TOS filter (Leyer 3) to Ignore .
Press OK to confirm your entries.

Following that, create additional QoS filters for the ESP and NAT Traversal protocols by using the following tables.

Description	Protocol	Destination port/range	Source port/range
IKE	udp	500	500
ESP	esp	-	-
NAT-T_1	udp	4500	-
NAT-T_2	udp	-	4500

The complete configuration looks like this:

Routing -> QoS -> QoS Filter