Remote Site 1: Sample Access Rule or Configuration

The Remote Site 1 network could have two Access Rules (Classic Mode) configured as shown in the below table.

You can configure QoS on:

• Classic Mode: OBJECT | Rules and Policies> Access Rule > Traffic Shaping

Setting	Access Rule 1	Access Rule 2
General View
Action	Allow	Allow
From Zone	LAN	VPN
To Zone	VPN	LAN
Service	VOIP	VOIP
Source	Lan Primary Subnet	Main Site Subnets
Destination	Main Site Subnets	Lan Primary Subnet
Users Allowed	All	All
Schedule	Always on	Always on
Enable Logging	Enabled	Enabled
Allow Fragmented Packets	Enabled	Enabled
Qos View
DSCP Marking Action	Map	Map
Allow 802.1p Marking to override DSCP values	Enabled	Enabled
802.1p Marking Action	Map	Map

The first Access Rule (governing LAN > VPN) would have the following effects:

• VoIP traffic (as defined by the Service Group) from LAN Primary Subnet destined to be sent across the VPN to Main Site Subnets would be evaluated for both DSCP and 802.1p tags.
  • The combination of setting both DSCP and 802.1p marking actions to Map is described in QoS Marking Actions.
  • Sent traffic containing only an 802.1p tag (for example, CoS = 6) would have the VPN-bound inner (payload) packet DSCP tagged with a value of 48. The outer (ESP) packet would also be tagged with a value of 48.
  • Assuming returned traffic has been DSCP tagged (CoS = 48) by the firewall at the Main Site, the return traffic is 802.1p tagged with CoS = 6 on egress.
  • Sent traffic containing only a DSCP tag (for example, CoS = 48) would have the DSCP value preserved on both inner and outer packets.
  • Assuming returned traffic has been DSCP tagged (CoS = 48) by the firewall at the Main Site, the return traffic is 802.1p tagged with CoS = 6 on egress.
  • Sent traffic containing only both an 802.1p tag (for example, CoS = 6) and a DSCP tag (for example, CoS = 63) would give precedence to the 802.1p tag and would be mapped accordingly. The VPN-bound inner (payload) packet DSCP would be tagged with a value of 48. The outer (ESP) packet would also be tagged with a value of 48.

  To examine the effects of the second Access Rule (Classic Mode) (VPN > LAN), look at the Access Rule (Classic Mode) configured at main site, Main Site: Sample Access Rule or Configurations.